Slot studios differ in more than themes and graphics. Each has its own way of building features, its own volatility habits and its own approach to RTP versions. This page puts 13 of them side by side, using the figures each studio publishes for its best-known games — the same examples you will find, with sources, on our provider profiles.
Highest published RTPs in our examples: NetEnt's Mega Joker at 99.00% (with its Supermeter mode), Relax Gaming's Book of 99, described as a 99% game, and Thunderkick's 1429 Uncharted Seas at 98.6%.
Biggest published caps: Nolimit City's Tombstone R.I.P. at 300,000x, then Big Time Gaming's Max Megaways 2 at 147,620x. Neither figure says anything about the version your casino runs or how often a cap is reached.
The 13 Studios at a Glance
The RTP and cap columns show the range of official figures quoted on each profile, not an average of a whole catalog. The game count is read live from the picker's database.
| Provider | Games in picker | Typical volatility | Official RTPs (examples) | Top published cap |
|---|---|---|---|---|
| Big Time Gaming | 109 | High | 96.11–96.64% | 147,620x (Max Megaways 2) |
| ELK Studios | 137 | Medium–High | Rarely on public pages | 50,000x (Cygnus 6) |
| Evoplay | 323 | Medium–High | Varies by product type | — |
| Hacksaw Gaming | 242 | High–Extreme | 88.28–96.38% | 20,000x (Chaos Crew 2) |
| NetEnt | 395 | Low–High | 95.97–99.00% | 100,000x (Dead or Alive 2) |
| Nolimit City | 157 | Extreme | 96.03–96.08% | 300,000x (Tombstone R.I.P.) |
| Play'n GO | 499 | Medium–High | Often missing from public pages | — |
| Pragmatic Play | 854 | High | 96.50–96.58% | 50,000x (Super Scatter awards) |
| Push Gaming | 104 | High | 94.06–96.83% | 100,000x observed (Razor Returns) |
| Red Tiger | 361 | Medium–High | 92.79–96.18% | 20,000x (Gonzo's Quest Megaways) |
| Relax Gaming | 213 | High–Extreme | 90–99% | 100,000x (Money Train 3) |
| Thunderkick | 115 | Low–High | 97.0–98.6% | Lists “max exposure” instead |
| Yggdrasil | 197 | Medium–High | 90.5–96.3% | 7,353x (Nightmares VS GigaBlox) |
Why a Studio Average Misleads
It is tempting to rank studios by their average RTP. The trouble is that most of them sell the same game in several approved versions, and the casino picks which one you get. Hacksaw Gaming publishes four for Wanted Dead or a Wild, from 96.38% down to 88.42%; Relax lists a 90% and a 94% edition of Money Train 3. An average across a catalog cannot tell you which of those is in front of you.
Between 96.38% and 88.42% there are 7.96 percentage points. Over $1,000 of total wagers, that is about $79.60 of extra expected loss on the lower version — on the very same game.
That is a long-run expectation, not a forecast for one session. But it is a much bigger gap than the one between most studios' headline figures.
So the useful comparison is not “which studio pays more” but which studio builds the kind of game you want, followed by a look at the RTP on the info screen of that game. Why casinos can show different RTPs covers the mechanics.
What Sets Each Studio Apart
A broad low-to-high-volatility catalog: classic paylines, expanding Wilds, Avalanche reels and Supermeter games such as Mega Joker. Several of the highest published RTPs on this page are NetEnt's, mostly in its older titles.
The studio behind Megaways. Most of its games are high volatility, with reactions, Megadozer and Win Exchange layered on top. Caps in our examples run from 26,000x on Bonanza to 147,620x on Max Megaways 2.
High-volatility games built on cluster pays, walking Wilds and growing multipliers. Its best-known titles usually come with two RTP settings — 96.83% and 94.25% for Jammin' Jars.
A developer and an aggregator in one. Money Train, Book of 99 and the six-level Dream Drop jackpot network sit next to partner games distributed under its name.
Branded mechanics — GigaBlox, Splitz, MultiMAX — plus partner releases through its Masters programme. The official catalog filter spans 86% to 97% RTP, and GigaBlox Kingdom alone comes in three versions.
Slots share the catalog with instant, crash and table games, which follow different maths. The studio advertises more than 250 games across those categories, so check what kind of game the picker gave you before comparing returns.
A small studio with unconventional layouts and some of the highest published RTPs around. It gives volatility as a number on some games and quotes “max exposure” rather than a max win.
The largest catalog in our picker. Tumbles, Pay Anywhere, cluster grids and Super Scatter awards dominate, while Ante Bet and Bonus Buy change what a spin costs.
An extreme-volatility specialist with xWays, xNudge and xBomb. Its game pages even publish the odds of the top win: 1 in 2.4 million on Fire in the Hole, 1 in 130 million on Tombstone R.I.P.
Megaways remakes and Daily Drop jackpots that operators can attach to its games. Some titles list two versions, such as 94.66% and 96.00% for Gonzo's Quest Megaways.
X-iter replaces a single Bonus Buy: every game has its own menu of paid modes, from 2.5x the bet up to 500x. The public pages describe modes and potential, but often skip the RTP.
Sticky multiplier Wilds, FeatureSpins and multi-tier bonus buys, with scratchcards and other non-slot products in the same catalog. Up to four RTP versions per game.
Book games since Book of Dead in 2016, cluster grids since Reactoonz in 2017, and the long-running Rich Wilde series. Public game pages often leave out the RTP, so the in-game rules are the place to look.
How to Choose a Studio
Start with NetEnt classics, Thunderkick and Relax's Book of 99, then confirm the version on the game's info screen.
NetEnt and Thunderkick cover low to high, unlike studios that build almost only at the top end.
Nolimit City, Big Time Gaming and Relax's Money Train 3 sit at the top — with long dry spells as the price.
BTG for Megaways, Push for clusters, Pragmatic for tumbles, ELK for X-iter, Nolimit City for xMechanics.
1. Pick a game style and volatility that suit the session you want.
2. Check the RTP of that exact game, not the studio's reputation.
3. Look for a lower version at your casino — the info screen shows it.
4. Treat max win as a ceiling, never as a session target.
Narrow the picker down to one studio, a volatility level or a minimum RTP, and let it choose for you.
Open the randomizer →Frequently Asked Questions
The Bottom Line
Choose a studio for the kind of game it makes, then judge the game itself. The RTP that counts is the one on the info screen of the version your casino runs, and the gap between versions is often larger than the gap between studios.
