/ Relax Gaming · 2021 · SLOT
Hellcatraz RTP — 96.46% Certified, Audited Per Operator
Hellcatraz is certified at a maximum RTP of 96.46% in Mixed Mode, or 96.30% in Lockdown Mode; there is no 94% variant (that belongs to Hellcatraz 2). Relax Gaming licenses both. Very high volatility, 6x6 grid with up to 46,656 ways, max win 51,840x stake, progressive multiplier through Free Spins.
Last verified: 15 September 2026 · 9 operators audited
Same game, two realities. Hellcatraz ships from 96.46% down to 96.30% — a 0.16pp swing most players never see.
Massive sportsbook crossover, 200+ deposit methods including 25+ cryptocurrencies. Multi-language native support.
Up to 1500 EUR + 150 free spins across first four deposits
Play the 96.46% version →Opens 1xBet in a new tab · 18+ · BeGambleAware · T&Cs apply
- Certified RTP
- 96.46%
- Lowest variant
- 96.30%
- Variants
- 2
- Casinos audited
- 9
- Reels
- 6x6
- Volatility
- Very High
- Max win
- 51,840x stake
- Paylines
- 46656
RTP per casino
Every operator below has been spot-checked for Hellcatraz. Tier 1 rows serve the certified ceiling; everything below is a reduced variant.
| Casino | Configured RTP | Tier | Verified | |
|---|---|---|---|---|
| Stake The largest crypto casino on the planet. | 96.46% | T1 | pending | Play 96.46% → |
| BC.Game Crypto casino with the widest deposit-currency support in the industry. | 96.46% | T1 | pending | Play 96.46% → |
| Roobet Crash-game-first crypto casino with strong streamer integration. | 96.46% | T1 | pending | Play 96.46% → |
| Rainbet Newer-generation crypto casino with provably-fair house games. | 96.46% | T1 | pending | Play 96.46% → |
| Duelbits Premium crypto casino with original house-game library. | 96.46% | T1 | pending | Play 96.46% → |
| 1xBet One of the largest global sportsbooks with a deep casino vertical. | 96.30% | T1 | pending | Play 96.30% → |
| BetWinner Sister brand to 1xBet — global sportsbook + casino at scale. | 96.30% | T1 | pending | Play 96.30% → |
| Mostbet Sportsbook-led casino with heavy crash-game investment. | 96.30% | T1 | pending | Play 96.30% → |
| 1Win Multi-vertical operator focused on crash-game audiences. | 96.30% | T1 | pending | Play 96.30% → |
About Hellcatraz
Hellcatraz is Relax Gaming's prison-themed extreme-volatility slot. Up to 46,656 ways pay on a 6x6 grid with cascading wins and a progressive multiplier through Free Spins. Max win capped at 51,840x stake.
Hellcatraz RTP — FAQ
What is the RTP of Hellcatraz?
Hellcatraz ships from Relax Gaming with a certified maximum RTP of 96.46%. Operators can deploy reduced certified variants down to 96.30%. Which version you play depends on the casino.
Which casino has the best Hellcatraz RTP?
As of our last audit on 15 September 2026, Stake serves Hellcatraz at 96.46%. Runs certified-ceiling RTPs on most major Pragmatic and Hacksaw titles. Instant crypto deposits, sub-1-minute withdrawals.
Is the RTP of Hellcatraz the same at every casino?
No. Hellcatraz is certified in 2 RTP variants (96.46%, 96.30%), and each casino chooses which one to deploy. The same game can pay 96.46% at one operator and 96.30% at another — a 0.16-point swing in house edge — with nothing in the lobby to tell them apart.
Why is my Hellcatraz RTP only 96.30%?
Because your casino has selected a reduced certified variant. Relax Gaming licenses Hellcatraz in multiple versions; the 96.30% build is legal and certified but returns 0.16 percentage points less than the 96.46% ceiling. To play the full version, choose an operator verified on the ceiling variant in the table above.
What is the highest-RTP version of Hellcatraz?
The highest certified version of Hellcatraz is 96.46% RTP. That is the ceiling Relax Gaming certifies; no casino can legally offer it higher. Our table flags every audited operator running this ceiling variant.
How do I check the deployed Hellcatraz RTP at my casino?
Open Hellcatraz, tap the in-game info or paytable icon (usually ⓘ or ☰), and scroll to the regulatory disclosures at the bottom of the help screen — the deployed RTP is printed there. If it reads below 96.46%, your casino has selected a reduced variant.
Is it legal for casinos to reduce Hellcatraz RTP?
Yes. Relax Gaming certifies multiple RTP variants of Hellcatraz with a testing lab and licenses each to operators. Casinos legally select which certified variant to deploy. Disclosure is required only on the in-game info screen — never in the lobby — which is why independent audit is the only practical way to know what you are loading.
What's the difference between certified and reduced Hellcatraz RTP?
The certified version returns 96.46% of total wagers over the long run; the lowest reduced variant returns 96.30%. That 0.16-point gap is pure additional house edge — statistically an extra $0.16 retained by the operator per $100 wagered. Short sessions swing either way, but the gap compounds across thousands of spins.
Is Hellcatraz rigged?
No — Hellcatraz runs on a certified RNG tested by an independent lab, and its RTP is a published, certified figure. What varies is which certified RTP variant a casino deploys, not whether the game is fair. A lower deployed RTP is a bigger long-run house edge, not a rigged outcome. Each spin remains independent and random.
Does a higher Hellcatraz RTP mean I'll win more?
Not in any single session. RTP is a long-run average over millions of spins, and even the 96.46% ceiling keeps a house edge in the casino's favour. A higher RTP reduces how much the game is designed to take over time — it never guarantees a win. Only gamble what you can afford to lose.
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