Sky Vegas Review 2026: Bonuses, Games and the Tax Reality Behind Them

Sky Vegas is the casino arm of Sky Betting & Gaming, a brand most UK punters already know from the Sky Sports ad breaks. It holds a UK Gambling Commission licence, pays 20% remote gaming duty on gross gambling yield, and that single tax line explains more about its bonus structure than any marketing page will. This review works through the numbers, the game library, the wagering terms and the economics that shape them.

Sky Vegas launched as a standalone casino product in 2014, spun out of Sky's broader betting operation, and has sat inside the Flutter Entertainment group since 2018. Flutter also owns Paddy Power, Betfair and Sky Bet itself, which means the group reports to the London Stock Exchange and files accounts that anyone can read. That matters for a review. A publicly listed parent cannot hide behind vague terms in the way an unlicensed operator can.

What follows is a working breakdown rather than a sales pitch: licence details, bonus maths, game counts, payment speeds, and a section on why the bonus you get from Sky Vegas looks structurally different from what an offshore site will offer you. If you want the short version, the table below covers the headline facts.

FeatureSky Vegas detail
OperatorSky Betting & Gaming (Flutter Entertainment plc)
LicenceUK Gambling Commission, account 3870
Launched2014 as a standalone casino brand
Welcome offerTypically 100% match up to £100 plus 50 free spins (terms rotate)
Minimum deposit£10
Wagering requirementUsually 30x to 40x on bonus funds
Game providersPragmatic Play, NetEnt, Microgaming, Evolution, Hacksaw Gaming, Big Time Gaming
Payout windowUnder 24 hours for e-wallets, 1-3 working days for cards
UK tax on operator20% remote gaming duty plus 15% point of consumption tax on sports

Is Sky Vegas Legit and Who Actually Owns It?

Legitimacy in this market comes down to two things: who holds the licence and who owns the company behind it. Sky Vegas holds a UK Gambling Commission remote casino licence, listed under account number 3870, and the brand sits inside Flutter Entertainment, a FTSE 100 company that reports revenue in the billions of pounds each year.

Flutter's 2024 results put group revenue at roughly $14 billion, with the UK and Ireland division contributing a sizeable slice of that. Sky Betting & Gaming alone employs thousands of staff, most of them in Leeds and London. A company of that size cannot operate without the Gambling Commission knowing exactly who is running it, who the beneficial owners are, and where the money flows.

Compare that to a Curacao-licensed casino with a shell company registered in the Caribbean and a support desk that answers emails in broken English.

Those sites are not necessarily fraudulent, but they sit outside UK jurisdiction, which means the Gambling Commission cannot fine them, cannot force them to pay out, and cannot make them contribute to GambleAware. That is the trade-off. Offshore sites often offer bigger headline bonuses because they pay 0% UK remote gaming duty.

Licensed operators pay 20% on gross gambling yield, and that cost has to come out of somewhere.

What Does the UK Gambling Commission Licence Actually Guarantee?

A UKGC licence is not a marketing badge. It obliges the operator to segregate customer funds from company funds, which means your balance is protected if the business goes bust. It also mandates participation in the multi-operator self-exclusion scheme, GAMSTOP, and forces compliance with the 2019 ban on credit card gambling.

Sky Vegas must also display its licence number, publish its complaints procedure, and submit to annual audits. If the Commission finds a breach, it can impose a financial penalty, suspend the licence, or revoke it outright. Fines in the tens of millions of pounds have been handed to operators in the last five years, so the threat is real.

For the punter, this translates into predictable behaviour. Withdrawal times are published and monitored. Terms and conditions cannot be changed retroactively to strip a bonus. Disputes get escalated to an Alternative Dispute Resolution provider if the operator and customer cannot agree. None of that is glamorous, but it is the difference between a regulated product and a promise.

How Does Flutter's Ownership Shape the Sky Vegas Product?

Flutter owns Sky Bet, Paddy Power, Betfair, FanDuel in the US, and a stack of international brands. That scale gives Sky Vegas access to proprietary games, shared liquidity for live dealer tables, and a player safety infrastructure that a standalone casino could not fund. The flip side is that group-wide compliance decisions get applied across every brand.

When Flutter tightens its safer gambling checks, Sky Vegas feels it in the same week. Deposit limits, reality checks and affordability assessments are not optional extras bolted onto the site; they are built into the account system at group level. Some players find this intrusive. Regulators find it necessary. Either way, it is a direct consequence of being owned by a listed company with a share price to defend.

How Do Sky Vegas Bonuses Actually Work Under UK Tax Rules?

This is where the tax angle becomes visible. A UK-licensed operator pays 20% remote gaming duty on gross gambling yield, defined as stakes minus winnings paid out. If a player deposits £100 and the operator's margin is 4%, the operator keeps £4 and pays £0.80 in duty. Bonuses reduce that margin further, so the wagering requirement attached to a bonus is not greed. It is a hedge against the tax bill.

An offshore casino licensed in Curacao pays nothing to HMRC. It can afford to hand out a 200% match bonus with 20x wagering because its cost base is lower. That does not make the offer better. It makes the offer cheaper to fund, which usually means looser terms on withdrawal limits, maximum bet rules, and game weighting.

Sky Vegas typically runs a 100% match up to £100 with 50 free spins on selected slots. The wagering requirement lands between 30x and 40x depending on the promotion, and the free spins usually carry a 4x or 10x conversion requirement. Read the terms before you deposit. The headline number is never the whole story.

Bonus elementTypical Sky Vegas termsTypical offshore equivalent
Match percentage100%150% to 300%
Maximum bonus£100£500 to £2,000
Wagering requirement30x to 40x20x to 50x
Maximum bet while wagering£5 per spin or stakeOften £10 or unrestricted
Game weightingSlots 100%, table games 10% to 20%Frequently unpublished or vague
Withdrawal cap on winningsUsually none on bonus winningsCommonly capped at £100 to £500
LicenceUKGCCuracao, Anjouan, Kahnawake

Why Is the Wagering Requirement So High on Licensed Sites?

Wagering requirements exist to stop bonus abuse. Without them, anyone could deposit £10, claim a £100 bonus, place one bet on red at roulette, and withdraw if it lands. The operator would be handing out free money with a 48% expected loss on every claim. The tax bill makes that math worse.

A 35x wagering requirement on a £100 bonus means you must stake £3,500 before any bonus-derived winnings become withdrawable. On a slot with 96% RTP, the expected loss across that turnover is £140. The bonus is worth £100. In pure expected-value terms, the offer is negative, which is true of almost every casino bonus in the regulated market. The point of the bonus is entertainment extension, not profit.

Offshore sites can advertise lower wagering because they do not pay UK duty and often do not enforce the same responsible gambling checks. That is not a better deal; it is a different risk profile. If the operator refuses to pay, you have no UK regulator to appeal to and no realistic legal route.

What Are the Realistic Expected Value Calculations?

Take a £100 deposit, £100 bonus, 35x wagering on the bonus only, and a slot with 96% RTP. Total turnover required is £3,500. Expected loss at 4% house edge is £140. The bonus contributes £100, so the net expected position is minus £40 before you account for the free spins.

Now assume the same offer with 30x wagering on bonus plus deposit, which is a common structure. Turnover jumps to £6,000, expected loss rises to £240, and the bonus is worth £100. The house edge on the wagering requirement is doing more damage than the bonus is doing good. This is why experienced players treat bonuses as a small edge on entertainment, not as a route to profit.

Free spins are usually worth more in practice. Fifty spins at £0.10 stake on a 96% RTP slot generates £5 of turnover and roughly £0.20 in expected value per spin set, but the upside on a single spin can be several hundred pounds if the slot pays. The variance is the product, not the expected value.

How Do You Compare a Sky Vegas Bonus to a Rival Offer?

Strip the marketing language and compare four numbers: match percentage, maximum bonus, wagering multiplier, and game weighting. A 100% match up to £100 at 35x is not the same as a 50% match up to £50 at 30x, even though both sound modest. Run the turnover maths before you claim.

Against William Hill, Ladbrokes or Coral, Sky Vegas sits in the same bracket: similar match percentages, similar wagering, similar game weighting. Against an offshore site like Roobet or Gamdom, the headline numbers look worse, but the regulatory protection is absent on the offshore side. There is no free lunch in either direction.

The one place Sky Vegas tends to differentiate is the free spins package. Fifty spins on a Pragmatic Play or NetEnt slot with a 10x conversion requirement is a reasonable sweetener. Fifty spins on an unknown in-house slot with a 40x conversion requirement is not worth the screen space it occupies.

What Games Can You Actually Play at Sky Vegas?

The library runs into the thousands of titles, supplied by Pragmatic Play, NetEnt, Microgaming, Evolution, Hacksaw Gaming, Big Time Gaming, Play'n GO and Red Tiger, among others. Slots dominate the floor, as they do everywhere in the UK market, but there is a credible live casino section powered by Evolution and a smaller table games lobby for blackjack, roulette and baccarat.

Sky Vegas also carries a handful of exclusive titles that you will not find on rival sites, usually built around Sky's own branding. These exclusives are worth a look if you have already ground through the standard Pragmatic and NetEnt catalogue, but they rarely beat the best-performing mainstream slots on RTP.

Jackpot slots are present but not the headline. If progressive jackpots are your thing, you will find Mega Moolah and similar Microgaming titles, but the dedicated jackpot sites tend to have deeper libraries. Sky Vegas is a generalist, not a specialist.

Which Slots Have the Best RTP at Sky Vegas?

RTP is set by the provider, not the operator, so the same slot will pay the same long-run percentage wherever it is hosted. What varies is which slots the operator chooses to feature and whether any RTP-reduced versions are in play. Sky Vegas generally hosts the standard versions of major titles.

Look for slots in the 96% to 96.5% range: Book of Dead at 96.21%, Starburst at 96.09%, Gonzo's Quest at 95.97%, and Big Bass Bonanza at 96.71%. Anything below 95% is a harder grind over the long run. The difference between 94% and 96.5% is £25 per £1,000 staked, which adds up fast across a bonus wagering requirement.

Hacksaw Gaming titles often sit in the 96% range with high volatility, which suits players chasing big wins on a small bankroll. Pragmatic Play's Sweet Bonanza and Gates of Olympus are similar. NetEnt's low-volatility slots are better for grinding wagering requirements without wild swings.

Is the Live Casino Section Any Good?

The live casino runs on Evolution, which is the dominant supplier in the UK market. You get live blackjack, live roulette, live baccarat, game shows like Crazy Time and Monopoly Live, and a handful of Sky-branded tables. Streaming quality is solid, and the dealer interface is the standard Evolution product you will recognise from other sites.

Live dealer games typically contribute 10% to 20% toward wagering requirements, which makes them a poor choice for clearing a bonus. If you want to play live, do it after you have cleared the wagering or on a separate deposit. Using live tables to grind a bonus is one of the slowest ways to lose money in the building.

Table limits on the standard live tables start at £1 or £2 per hand and top out in the thousands on the VIP tables. The Sky-branded tables sit in the middle of that range. Nothing unusual, nothing broken.

How Many Games Are on the Site in Total?

Sky Vegas lists several thousand titles across slots, live dealer, table games, bingo and instant win. The exact count shifts weekly as new releases land and older titles get retired, but the library sits comfortably in the same bracket as William Hill, Betfair and 888 Casino.

Depth matters less than curation. A site with 500 well-chosen slots is more useful than one with 5,000 titles buried under a broken search function. Sky Vegas's search and filter tools are functional: you can sort by provider, volatility, RTP range and theme. That saves time when you know what you want.

New releases land weekly, usually on a Thursday or Friday, synced with the provider release schedule. If you follow Pragmatic Play or Hacksaw Gaming release calendars, you will see the new titles appear on the same day they go live elsewhere.

Banking, Withdrawals and the Cost of Being Licensed

Deposits at Sky Vegas are free and instant across debit card, PayPal, Apple Pay, and bank transfer. Minimum deposit is £10. Credit cards are banned for UK gambling under the 2019 rules, so do not expect to see Visa or Mastercard credit options at checkout.

Withdrawals to e-wallets typically land within 24 hours. Card withdrawals take one to three working days, sometimes longer if the bank's own processing adds a delay. Sky Vegas does not charge withdrawal fees, and there is no published cap on how much you can pull out in a single transaction, though large sums may trigger additional verification.

The verification process is where most complaints originate. UK operators must verify name, address, date of birth and source of funds before releasing significant withdrawals. This is a Gambling Commission requirement, not a Sky Vegas policy. If you deposit £20 and withdraw £200, expect a light check. If you deposit £2,000 and withdraw £20,000, expect a full source-of-funds review that can take days.

How Fast Are Sky Vegas Withdrawals in Practice?

PayPal and Apple Pay withdrawals usually clear within a few hours, occasionally the same day. Debit card withdrawals sit in the one to three working day window, which is standard across the UK market. Bank transfers can take up to five working days depending on the receiving bank.

Speed depends on two things: whether your account is fully verified, and whether the withdrawal triggers a manual review. Verified accounts with a clean history clear faster. Accounts that have never withdrawn before, or that have deposited heavily in a short window, get flagged for review. That is not Sky Vegas being difficult; it is the compliance team doing what the regulator requires.

If you want the fastest route, verify your identity and address the day you open the account, before you deposit. Upload the documents, wait for confirmation, then play. It removes the most common cause of withdrawal delays.

What Deposit Limits and Safer Gambling Tools Are Available?

Sky Vegas offers deposit limits, loss limits, session time reminders, reality checks and a full self-exclusion option. You can set a daily, weekly or monthly deposit limit that takes effect immediately if you are lowering it, or after 24 hours if you are raising it. That 24-hour cooling-off period is a regulatory requirement.

Time-out periods range from 24 hours to six weeks. Self-exclusion runs for a minimum of six months and can be extended. Once you self-exclude with Sky Vegas, you cannot reopen the account until the period expires, and the operator must remove you from all marketing lists.

GAMSTOP is the national self-exclusion scheme. Registering with GAMSTOP excludes you from every UK-licensed operator for a minimum of six months. It is a single action that covers the entire regulated market, which is the point. If you are struggling, use it.

How Does the 20% Remote Gaming Duty Affect What You Get?

Remote gaming duty is charged at 20% of gross gambling yield for casino and slots, and 15% for sports betting under the point of consumption tax. The operator pays it, not the player, but the cost flows through to the product in three visible ways: lower headline bonuses, tighter wagering terms, and fewer no-deposit offers.

Compare the UK market to a jurisdiction with no gambling tax and you see the difference immediately. Offshore sites can offer 200% matches because they keep the full margin. UK sites cannot. The £100 cap on most UK welcome bonuses is not a coincidence; it is a tax-driven design decision.

None of this is a reason to avoid licensed operators. The protection you get in return, including segregated funds, GAMSTOP, ADR escalation and the knowledge that a regulator will act if the operator misbehaves, is worth more than an extra £100 in headline bonus that comes with offshore terms.

Sky Vegas vs the Rest of the UK Market

Sky Vegas competes with William Hill, Ladbrokes, Coral, Paddy Power, Betfred, Betfair, 888 Casino, LeoVegas, MrQ, Casumo and dozens of others in the same regulated bracket. The differences between them are smaller than the marketing suggests. Licence, tax treatment and responsible gambling framework are near-identical because they all answer to the same regulator.

Where they diverge is in game curation, bonus generosity within the tax constraint, and the quality of the app and site experience. Sky Vegas leans on the Sky brand and the cross-sell from Sky Bet, which is a legitimate advantage. If you already have a Sky Bet account, the integration is seamless in a way that a standalone casino cannot match.

Against a specialist like Videoslots or Casumo, Sky Vegas is less slot-obsessive. Against a bingo-led brand like Gala Bingo or Foxy Bingo, it is more casino-focused. It sits in the middle of the market by design, which is a reasonable place to be if you want a bit of everything without committing to a niche.

How Does Sky Vegas Compare to William Hill and Ladbrokes?

William Hill and Ladbrokes are the closest comparators: large UK bookmakers with casino arms, similar licence, similar tax exposure, similar bonus structures. William Hill's casino tends to push its own proprietary slots and a broader live dealer range. Ladbrokes leans on its retail heritage and a strong bingo cross-sell.

Sky Vegas differentiates on the app experience and the Sky Bet integration. If you bet on football with Sky Bet, the wallet and login are shared, which removes friction. If you do not, the difference is marginal. All three sites will give you a similar welcome offer, similar wagering, and similar withdrawal times.

Bonus terms rotate constantly across all three, so the comparison that matters is the one on the day you sign up. Check the wagering multiplier, the game weighting, and the maximum bet rule before you claim anything.

How Does It Compare to Offshore Operators Like Roobet or Gamdom?

Offshore casinos licensed in Curacao or Anjouan can offer bigger bonuses, higher bet limits, and games that UK-licensed operators cannot host. They also sit outside UK jurisdiction, which means no GAMSTOP, no UKGC complaint route, no segregated funds protection, and no obligation to contribute to research, education and treatment funding.

For a casual player who values protection, the licensed route is the sensible one. For a high-volume player chasing lower house edges and bigger bonuses, the offshore route is a calculated risk. Neither is inherently right or wrong, but you should know which one you are choosing.

The practical difference shows up when something goes wrong. If Sky Vegas refuses a withdrawal, you escalate to its complaints team, then to an ADR provider, then to the Gambling Commission if needed. If an offshore site refuses a withdrawal, you have email and hope. That is the trade.

What About Bingo and Other Sky Products?

Sky Bingo sits alongside Sky Vegas under the same licence and shares the wallet and login. If you want bingo rooms, you will find them, though the bingo product is smaller than dedicated sites like Gala Bingo, JackpotJoy or Foxy Bingo. The cross-over is convenient rather than best-in-class.

Sky Bet covers sports, and the integration with Sky Vegas means you can move money between the two without leaving the app. For a punter who bets on football and plays slots, that is a genuine convenience. For a slots-only player, it is irrelevant.

Poker and other verticals are not part of the Sky Vegas offer. If you want poker, you go to Sky Poker or a dedicated room. The casino is a casino, not a full gambling ecosystem.

Who Should Actually Sign Up to Sky Vegas?

Sky Vegas suits the punter who wants a regulated, well-run casino with a familiar brand, a solid app, and a game library that covers slots, live dealer and table games without specialising in any of them. It is not the cheapest bonus on the market, and it is not the deepest slot library, but it is reliable.

It does not suit the player chasing the biggest possible headline bonus, the highest bet limits, or games that UK-licensed operators cannot host. Those players will find better fits offshore, with the trade-offs that come with that choice.

If you are new to online casinos and want a low-friction starting point with strong consumer protection, Sky Vegas is a sensible pick. If you are an experienced player optimising for expected value, the maths will push you toward whichever site is running the best terms that week, and that might not be Sky Vegas.

Responsible Gambling and the Rules That Apply

Gambling in the UK is legal for anyone aged 18 or over. Sky Vegas, like every UK-licensed operator, must verify your age before you can deposit or play. The national gambling helpline is operated by GamCare and is reachable on 0808 8020 133, free of charge, 24 hours a day.

GAMSTOP is the national online self-exclusion register. Registering excludes you from every UK-licensed gambling site for a minimum of six months, and the registration is free. You can register at gamstop.co.uk. It is the single most effective tool available if you need a break from online gambling.

Sky Vegas also offers its own deposit limits, loss limits, time-outs and self-exclusion tools within the account settings. These take effect immediately when you tighten them and after a 24-hour cooling-off period when you loosen them. Use them before you need them, not after.

If gambling stops being entertainment, the support is there. GamCare runs a free helpline, online chat and forum. GambleAware funds research, education and treatment. Both are independent of the operators, even though the operators contribute to their funding through a statutory levy. Asking for help is not a weakness; it is the same as going to a doctor when something is wrong.

Set a budget before you deposit. Stick to it. Treat the bonus as entertainment spend, not as a route to profit. The maths is against you over the long run, and the only person who wins consistently is the house. That is not a moral judgement; it is arithmetic.

What Is the Minimum Age to Play at Sky Vegas?

You must be 18 or over to open an account and gamble at Sky Vegas. Age verification happens automatically against public records during sign-up, and if the check fails you will be asked to upload ID before you can deposit. Underage gambling is a criminal offence for the operator to facilitate.

The 18+ rule applies across all UK-licensed gambling, including bingo, sports betting and lottery products. There is no exception for casino games, and no exception for free-to-play demos that require an account. If you are under 18, you cannot sign up.

If you suspect a minor has accessed a gambling account, contact the operator immediately. Sky Vegas and every other UK-licensed site has a process for freezing accounts and reversing deposits in those cases. Acting quickly matters.

What Happens If You Want to Close Your Account?

You can close your Sky Vegas account at any time through the account settings or by contacting customer support. Closure is different from self-exclusion: closure simply ends your relationship with the operator, while self-exclusion triggers a six-month minimum lockout and marketing suppression.

If you close your account, you can reopen it later, though the operator may ask you to go through verification again. If you self-exclude, you cannot reopen until the exclusion period ends, and the operator must remove you from all marketing lists during that period.

Time-outs are the middle option. You can take a time-out for 24 hours, seven days, or up to six weeks. During a time-out you cannot deposit or play, but the account stays open. It is a useful tool for a short break without a full exclusion.

How Do You Make a Complaint About Sky Vegas?

Start with Sky Vegas's own customer support. If the issue is not resolved within eight weeks, or you receive a deadlock letter, you can escalate to an Alternative Dispute Resolution provider. The ADR provider for Sky Vegas is listed in its terms and conditions, and the service is free to the customer.

If the ADR process does not resolve the issue, you can complain to the Gambling Commission. The Commission does not adjudicate individual disputes, but it does investigate patterns of operator misconduct and can impose licence conditions, financial penalties or revocation.

Keep records. Screenshots of bonus terms, chat transcripts, deposit and withdrawal confirmations. Complaints backed by evidence move faster than complaints based on memory. The paper trail is your leverage.

Is Sky Vegas Worth It in 2026?

Sky Vegas is a competent, well-regulated casino with a familiar brand, a solid app and a game library that covers the essentials. It is not the cheapest, the deepest or the most innovative, and it does not pretend to be. What it offers is reliability within the UK's regulated framework, and that has real value.

The tax angle explains why its bonuses look modest next to offshore offers. A 20% remote gaming duty is a real cost, and it shows up in the £100 cap, the 35x wagering, and the absence of eye-catching no-deposit offers. If you understand that, the offer makes sense.

Sign up if you want a licensed, protected, well-run casino with a decent app and a broad game library. Look elsewhere if you are optimising purely for bonus size or bet limits. Either way, set a budget, read the terms, and treat the whole thing as entertainment. The maths will not be kind if you forget that.

Frequently Asked Questions About Sky Vegas

Below are the questions that come up most often, answered directly. If you want the short version of this review, these five answers cover the essentials.

Is Sky Vegas safe and licensed in the UK?

Yes. Sky Vegas holds a UK Gambling Commission remote casino licence under account 3870 and is owned by Sky Betting & Gaming, part of Flutter Entertainment. Customer funds are segregated, the operator participates in GAMSTOP, and complaints can be escalated to an ADR provider and the Commission.

What is the Sky Vegas welcome bonus and wagering requirement?

The welcome offer typically runs as a 100% match up to £100 plus 50 free spins, though terms rotate. Wagering requirement on bonus funds usually sits between 30x and 40x, with free spins carrying a separate 4x to 10x conversion requirement. Always check the current terms before depositing.

How long do Sky Vegas withdrawals take?

E-wallet withdrawals through PayPal or Apple Pay usually clear within 24 hours. Debit card withdrawals take one to three working days. Bank transfers can take up to five working days. Fully verified accounts with a clean history clear fastest; first withdrawals and large sums may trigger additional checks.

Why are Sky Vegas bonuses smaller than offshore casinos?

UK-licensed operators pay 20% remote gaming duty on gross gambling yield. Offshore casinos licensed in Curacao or Anjouan pay nothing to HMRC, which lets them fund larger headline bonuses. The trade-off is that offshore sites sit outside UK jurisdiction, with no GAMSTOP, no segregated funds, and no UKGC complaint route.

What is the minimum deposit and minimum age at Sky Vegas?

The minimum deposit is £10. The minimum age is 18, verified automatically against public records during sign-up. Credit card deposits are banned for UK gambling under rules introduced in 2019, so only debit cards, e-wallets and bank transfers are accepted.

Can I self-exclude from Sky Vegas and other UK sites at once?

Yes. Registering with GAMSTOP excludes you from every UK-licensed gambling operator for a minimum of six months. The registration is free and takes a few minutes. Sky Vegas also offers its own self-exclusion, time-outs and deposit limits within the account settings. The national helpline is 0808 8020 133.

What games does Sky Vegas offer beyond slots?

Live dealer tables powered by Evolution, including blackjack, roulette, baccarat and game shows like Crazy Time. A smaller table games lobby for RNG blackjack and roulette. Bingo rooms under the Sky Bingo brand. No poker, which sits in a separate Sky product. The slots library is the deepest section by a wide margin.