How we rank — and how we keep the numbers honest
The whole point of HighRTPHub is that you can trust the figures. This page explains exactly where our data comes from, how we test, who writes it, and how AI is used. If a number can't be sourced, we hedge it or leave it out.
Who we are (the "Who")
HighRTPHub is an independent editorial site, not a gambling operator — we don't take bets or hold player funds. Our reviews are written by named people with backgrounds in slot mathematics and casino compliance (see about & authors), and every review carries a byline and a publish date. We make money through clearly-disclosed affiliate links to UK-licensed casinos; that revenue never changes a verified RTP figure or a ranking.
Where our RTP figures come from (the "How")
For every slot we record the provider's default / headline RTP as the canonical figure, sourced primarily from:
- Provider game data sheets and flexible-RTP documentation — NetEnt, Play'n GO, Pragmatic Play, Relax Gaming, Big Time Gaming, Playtech and Thunderkick.
- Independent test-lab references where available — eCOGRA, iTech Labs and GLI certify the RNG and audited RTP behind UK-licensed games.
- Cross-checks against established public databases (e.g. SlotCatalog-, FindMyRTP- and slot.report-style references) to catch discrepancies.
Each figure in our database carries an implicit source type and a last-verified date (currently June 2026). Where sources disagree — for example a tracked/live RTP differing from the published figure — we flag it rather than pretending one number is gospel.
How we rank casinos
Casinos are scored on a weighted basis across factors that genuinely matter to a high-RTP player:
- Licensing & safety — UK Gambling Commission licence is a hard requirement for anything we rank for GB players; we note additional MGA/Gibraltar regulation and audited RNGs.
- RTP transparency — does the casino publish or surface per-game RTP? (Mr Vegas's on-thumbnail labels score well here.)
- Bonus fairness — wagering multiplier, game weighting, bonus validity and caps, quoted verbatim in UK-legal form.
- Payout speed — verified withdrawal timelines by method.
- Game range — depth of genuinely high-RTP titles and low-edge table games.
How we test
We register accounts where practical, read the full bonus terms and game-weighting tables, time withdrawals by payment method, and open games to confirm the live RTP shown in the paytable. We only quote offers in the exact form they're legally available to GB players — for example, we never present a feature-buy RTP as available in the UK, because buys are prohibited for UK operators under the Gambling Commission's rules.
AI-assistance disclosure
We use AI tools to help draft, structure and proofread content, and to help organise our slot database. Every figure, claim and ranking is reviewed and verified by a human editor against primary sources before publication. AI is a drafting and research aid here, not an unchecked author — we don't publish machine-generated stats we haven't independently confirmed, and we don't fabricate licences, bonuses or RTP numbers. Where we're uncertain, we hedge or omit.
Why this matters (the "Why")
Gambling content carries real-world consequences, so accuracy and honesty come before persuasion. Our editorial standard is people-first: we lead with the caveats (RTP is a long-run average; the house edge always remains; high RTP never guarantees profit), we surface the information operators sometimes bury, and we'd rather lose a click than mislead a reader into thinking a slot is a reliable way to make money. It isn't.
Corrections
If you spot a figure you believe is wrong, tell us and we'll re-verify against the source and update the last-verified date. Transparency includes admitting and fixing mistakes.