Online casino editorial · 18+
18+ Gambling can cause harm. GamCare 0808 8020 133
The top online casino game providers
Ranked by the published method below. For the studios each operator carries, open its dossier from the studio pages.
Show
Showing 12 of 12
GB licence 55149 · current · checked 19 Sept 2026
Welcome offer None verified on 23 Sept 2026The casino new-customer offer was not verified on the operator's page on the check date; the offer widely quoted is the sports free-bet offer, which is not a casino offer.
GB licence 57924 · current · checked 19 Sept 2026
Reported offer Deposit £20, get a £20 bonusAs reported by casinohawks.com on 23 Sept 2026; not yet verified on the operator’s own page, so it is not scored. 18+, new customers, significant terms apply: 18+. New customers. 10× wagering on deposit plus bonus (£400) within 30 days; maximum conversion £2,000. First deposits by PayPal or paysafecard are not eligible.
GB licence 38905 · current · checked 19 Sept 2026
Welcome offer Deposit and wager £10 on slots, get 100 free spins on Game of Thrones18+. New members only, opt in required. Deposit and wager a minimum of £10 on slots; 100 spins worth 10p each on Game of Thrones; 30-day expiry. Full rules on the operator’s terms page. Read on the operator’s page, 23 Sept 2026.
GB licence 39326 · current · checked 19 Sept 2026
Welcome offer 50 free spins on Big Bass Bonanza after a first deposit, no wagering18+. New UK players, first deposit only; excludes Northern Ireland. Spins worth 10p each; no wagering requirements, wins paid as cash. Irregular play may lead to removal of rewards. Read on the operator’s page, 23 Sept 2026.
GB licence 39198 · current · checked 19 Sept 2026
Welcome offer None verified on 23 Sept 2026No new-customer casino welcome offer was shown on the operator’s promotions page on 23 Sep 2026 (ongoing promotions only). Check the operator’s site for the current position.
GB licence 65519 · current · checked 19 Sept 2026
Reported offer 70 free spins on sign-up, 200 more after a £10 stake, no wageringAs reported by oddschecker.com on 23 Sept 2026; not yet verified on the operator’s own page, so it is not scored. 18+, new customers, significant terms apply: 18+. New customers. Add card details and opt in for the 70 spins; deposit and stake £10 or more for the further 200. Spins expire after 7 days. No wagering requirements on winnings.
GB licence 39435 · current · checked 19 Sept 2026
SkrillWelcome offer 50 free spins on sign-up and 50 more after a £10 deposit, on selected Jackpot King slots18+. New customers. 50 spins on registration and 50 after a £10 deposit, on selected Jackpot King slots; use within 7 days; fair-play and minimum-risk wagering rules apply and deposited cash is played first. Full terms on the operator’s promotions page. Read on the operator’s page, 23 Sept 2026.
Skrill
GB licence 39225 · current · checked 19 Sept 2026
Reported offer 200 free spins after a £10 stake on Big Bass SplashAs reported by racingpost.com on 23 Sept 2026; not yet verified on the operator’s own page, so it is not scored. 18+, new customers, significant terms apply: 18+. New UK customers. Opt in with code WHV200 and stake £10 from the cash balance within 7 days. Spins worth 10p each; winnings paid as bonus with 10× wagering on the same game within 72 hours; maximum redeemable £30. PayPal and paysafecard deposits do not qualify.
GB licence 39426 · current · checked 19 Sept 2026
Reported offer Up to 260 free spins: 60 on sign-up and 200 after £10 of play, wager-freeAs reported by racingpost.com on 23 Sept 2026; not yet verified on the operator’s own page, so it is not scored. 18+, new customers, significant terms apply: 18+. New customers. 60 spins on registration, 200 after £10 of play; no wagering on winnings. Amounts and formats change often: confirm the current offer in the app's Promotions tab before opting in.
GB licence 39198 · current · checked 19 Sept 2026
Reported offer 200 wager-free spins on Big Bass Splash after a £10 depositAs reported by racingpost.com on 23 Sept 2026; not yet verified on the operator’s own page, so it is not scored. 18+, new customers, significant terms apply: 18+. New customers. Opt in, deposit £10 within 7 days and wager 1× within 7 days on casino games (live casino and table games excluded). Spins worth 10p, 3-day expiry; winnings paid as cash.
GB licence 61549 · current · checked 19 Sept 2026
Welcome offer 50% deposit bonus up to £100 on a first deposit of £20 or more18+. New UK customers, opt in required. Minimum £20 first deposit; 10× wagering on the bonus; valid 7 days; maximum bet £5 per spin while wagering; game, play and payment-method restrictions apply. Read on the operator’s page, 23 Sept 2026.
GB licence 39028 · current · checked 19 Sept 2026
Reported offer 100% bonus up to £100 on a first deposit of £10 or moreAs reported by oddschecker.com on 23 Sept 2026; not yet verified on the operator’s own page, so it is not scored. 18+, new customers, significant terms apply: 18+. New UK customers with GBP accounts. Deposit £10+ and stake it on selected slots within 48 hours; bonus wagered 10× on selected slots within 5 days; winnings capped at £100.
Operator marks are trademarks of their owners, shown for identification; no endorsement or partnership is implied. Offers are as published by each operator on the date shown, may change without notice, and carry significant terms: 18+, new customers, wagering and expiry conditions apply. Check the operator’s own terms before you deposit. Gambling can cause harm: BeGambleAware.org.
No document ranks casino games by how rigged they are. The GB licensing papers establish something narrower and more useful: a licensed game must publish its rules and its house edge, and settle by them. Read field by field.
Read What is the least rigged game in a casino?: what the documentation establishes
Follow a return-to-player claim from a dated supplier statement to the rules for one game version, without treating a catalogue range as a live operator setting.
Read A studio’s RTP range does not identify the version in your casino
The Big Time Gaming acquisition shows why an agreement, a completed transaction, a surviving brand and a game version need separate records.
Read When a casino game studio is bought, which records actually change?
Fifteen studios that make online casino games, recorded only from their own published pages and the Gambling Commission register: entities, licences, certification wording, each dated 18 September 2026.
Read Who makes online casino games: fifteen studios recorded from their own pages and the GB register
A method for confirming the studio credited on a casino game, separating brand from legal entity, and checking the licence and testing records that actually apply.
Read How to check which studio made a casino game and whether it is GB-licensed
A useful studio profile answers a narrow question: who publishes this game, what entity is named in the documentation, and when was that information current?
Read Build a studio dossier from dated documentsThe four questions readers ask most, answered in a sentence or two. Checked September 2026.
The studios most UK lobbies carry include Evolution and Playtech for live tables, and Pragmatic Play, NetEnt, Play’n GO, Microgaming, Big Time Gaming and Blueprint for slots. This site’s studio pages hold the dossiers.
Most lobbies have a provider filter in the games menu; the studio pages on this site list which operators carry each studio, with the date checked.
Pragmatic Play, NetEnt, Play’n GO, Microgaming, Big Time Gaming, Red Tiger and Blueprint Gaming supply most of the slots in UK lobbies; every one holds a Gambling Commission supplier licence.
By published return to player, the operators differ less than the games do; the apps above are scored on how fast they pay withdrawals, not on game returns, which are set by each studio.
Seven weighted checks, scored from each operator’s published pages and the Gambling Commission register. Every score on this site can be re-derived from the facts in its row. Position is never sold.
Editorial policy · “Checked” means read on that date; it never means verified or approved.
6 pages
No document ranks casino games by how rigged they are. The GB licensing papers establish something narrower and more useful: a licensed game must publish its rules and its house edge, and settle by them. Read field by field.
Read What is the least rigged game in a casino?: what the documentation establishesFollow a return-to-player claim from a dated supplier statement to the rules for one game version, without treating a catalogue range as a live operator setting.
Read A studio’s RTP range does not identify the version in your casinoThe Big Time Gaming acquisition shows why an agreement, a completed transaction, a surviving brand and a game version need separate records.
Read When a casino game studio is bought, which records actually change?Fifteen studios that make online casino games, recorded only from their own published pages and the Gambling Commission register: entities, licences, certification wording, each dated 18 September 2026.
Read Who makes online casino games: fifteen studios recorded from their own pages and the GB registerA useful studio profile answers a narrow question: who publishes this game, what entity is named in the documentation, and when was that information current?
Read Build a studio dossier from dated documents
No UK regulator ranks slot studios. The Gambling Commission lists 14 approved test houses and sets the fields every game test report must name, both read 23 September 2026.
Read What are the leading suppliers of online slot games? What the published test reports establishA worksheet with your own figures. It holds no live casino data and makes no prediction.
Explore the subject
Use this to record observations. No product has been tested or scored by this worksheet.
No document read names one and this ledger does not rank games; RTS 3C requires each game’s house edge or RTP to be published before the bet, and the reader compares those.
From What is the least rigged game in a casino?: what the documentation establishes
Not established by any licence document or register entry; the register records entities, activities and actions, not play volumes.
From What is the least rigged game in a casino?: what the documentation establishes
Not established by the documents read; a press claim stays a claim until a dated filing states it.
From What is the least rigged game in a casino?: what the documentation establishes
The Commission’s guide defines the components that count as gambling software; the engines a studio uses are not on any licence page.
From What is the least rigged game in a casino?: what the documentation establishes
The register has no live-dealer field; the three entries read each hold Game Host (Casino) (Remote), and whether a game is live-dealt is on the studio’s page.
From What is the least rigged game in a casino?: what the documentation establishes
This ledger does not rank studios; it records which entities hold which licence activities, with account numbers and regulatory actions.
From What is the least rigged game in a casino?: what the documentation establishes
Logged-out operator inspections, site walkthroughs and public how-tos. Start playback when you choose; captions are available.