Casinos make money by having a built-in edge. That’s not a secret—it’s literally how the business model works. Every slot, every table game, every dice roll is designed to pay out slightly less than what gets wagered over time. A typical online casino game returns around 95-97% of what players bet, meaning the house keeps 3-5% as profit. It’s just math.
Gamdom, a crypto casino that’s been around since 2016, just announced it’s flipping that model for all its in-house games. Every Gamdom Original—Dice, Mines, Plinko, Crash, Keno, Roulette, Hi-Lo, all of them—now runs at 100% return to player. Zero house edge. In theory, players get back every dollar they wager over time.
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What 100% RTP Actually Means
RTP stands for return to player, and it’s basically the percentage of total wagers a game pays back over the long run. A 97% RTP game returns $97 for every $100 wagered on average. The missing $3 is the house edge—the casino’s cut. At 100% RTP, there’s no cut. The game returns the full amount wagered, statistically speaking.
This doesn’t mean you can’t lose money. Variance still exists. You can absolutely have a terrible session and walk away down. But over thousands or millions of plays across all users, the game is designed to return 100% of what goes in. No hidden margin for the house.
It’s a weird business move on the surface. Casinos exist to make money, and Gamdom’s eliminating the profit margin on its most popular games. So what’s the angle?
Why Would a Casino Do This?
A few possibilities. First, Gamdom still offers third-party slots and live casino games, which presumably still run at standard RTPs with normal house edges. Those could be generating enough revenue to subsidize the Originals.
Second, higher RTPs attract players. If you’re choosing between two platforms and one has a demonstrably better payout structure, you’re probably picking that one. Volume matters—if Gamdom can pull in significantly more users and keep them playing longer because the games are statistically fairer, they might make up the margin through sheer scale.
Third, there’s the crypto angle. Gamdom operates in BTC, ETH, USDC, and other cryptos. Crypto casinos have lower overhead than traditional online casinos—no payment processor fees, faster settlement, global reach without as many regulatory hoops. That cost advantage could make 100% RTP viable where it wouldn’t be for a fiat-based operator.
What Games Are Affected
All the Gamdom Originals got the update. Crash is the multiplier game where you’re trying to cash out before it crashes. Dice is a simple higher/lower number guess. Mines is basically Minesweeper but with payouts. Plinko drops a ball through pegs aiming for high multipliers. Roulette, Keno, and Hi-Lo round out the lineup.
These games all use provably fair algorithms, which is crypto casino speak for transparent randomness that players can verify themselves. Combined with 100% RTP, Gamdom’s positioning itself as the fairest option in a market where trust is always sketchy.
Does This Actually Matter?
For casual players, probably not much. Most people don’t play long enough for RTP differences to show up meaningfully in their results. Short-term variance dominates. You can lose just as fast at 100% RTP as you can at 97% RTP if luck isn’t on your side.
For high-volume players and gamblers who grind these games regularly, the difference is real. A few percentage points of edge compounds over time. If you’re playing thousands of hands or spins, 100% RTP versus 97% RTP is the difference between breaking even and slowly bleeding money.
Gamdom has over 16 million registered users, so they’re not a tiny operation. Whether removing the house edge becomes a competitive advantage or just a marketing gimmick depends on whether players notice and care. In an industry built on taking a cut, offering to take nothing is at least an interesting experiment.