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Gamdom Originals RTP: Real House Edges & The 100% Rebate Truth
Gamdom's proprietary in-house games—Dice, Plinko, Mines, Keno, HiLo, Pocket Dice, Crash, Roulette, and Limbo—are mathematically the cheapest games to play on the platform. Here is how their 1% house edge works, which games qualify for the special instant rebate, and how rakeback stacks on top.
The Baseline: 99% RTP (1% House Edge)
Gamdom's help center sets the baseline return to player (RTP) for its Originals at approximately 99.00%. That means the mathematical house edge is just 1.00%. For every $100 you wager, the casino expects to retain roughly $1.00 over the long run.
To put that in perspective, a standard 96.5% Pragmatic slot keeps $3.50 per $100, and a 94% ELK Studios slot keeps $6.00. Playing Originals stretches your bankroll between 3x and 6x longer than playing typical slots at identical bet sizes.
Complete Breakdown of Gamdom Originals
| Game | RTP | House Edge | Expected Loss / $100 | $50k Rebate Eligible? |
|---|---|---|---|---|
| Dice | 99.00% | 1.00% | $1.00 | Yes (up to $50k wagered) |
| Plinko | 99.00% | 1.00% | $1.00 | Yes (up to $50k wagered) |
| Mines | 99.00% | 1.00% | $1.00 | Yes (up to $50k wagered) |
| Keno | 99.00% | 1.00% | $1.00 | Yes (up to $50k wagered) |
| HiLo | 99.00% | 1.00% | $1.00 | Yes (up to $50k wagered) |
| Pocket Dice | 99.00% | 1.00% | $1.00 | Yes (up to $50k wagered) |
| Crash | 99.00% | 1.00% | $1.00 | No (standard rakeback only) |
| Roulette (Original) | 99.00% | 1.00% | $1.00 | No (standard rakeback only) |
| Limbo | 99.00% | 1.00% | $1.00 | No (standard rakeback only) |
The Truth Behind the "100% RTP" Claim
You will frequently see casino streamers and review blogs claim that "Gamdom Originals have 100% RTP." Here is what is actually going on:
Gamdom's official documentation notes that for six games—Dice, Plinko, Mines, Keno, Pocket Dice, and HiLo—a small portion of each bet is refunded back instantly for the first $50,000 you wager. Because this rebate is credited back automatically, reviewers have inferred that the rebate equals the full 1.00% house edge, effectively creating a 100% RTP environment.
While this is an attractive selling point, Gamdom has never explicitly guaranteed that the rebate matches 100% of the house margin. Furthermore, a 100% RTP does not mean you cannot lose money. In games with high multiplier variance like Plinko (1,000x bucket) or Crash, short-term distribution variance is massive. You can easily burn through a balance before the long-term mathematical average ever catches up.
The King of the Hill Tradeoff: Points vs. Balance
Gamdom runs competitive daily and weekly leaderboard races called King of the Hill. Points are calculated using a transparent formula:
Points = (Wagered Amount × House Edge) ÷ 0.035
Notice the critical role of house edge: because Originals have the lowest house edge on Gamdom (1%), they generate the fewest points per dollar:
- $100 on an Original (1% edge):
($100 × 0.01) ÷ 0.035= 28.57 points - $100 on Live Roulette (2.7% edge):
($100 × 0.027) ÷ 0.035= 77.14 points - $100 on a 96% Slot (4% edge):
($100 × 0.04) ÷ 0.035= 114.28 points - $100 on a 94% Slot (6% edge):
($100 × 0.06) ÷ 0.035= 171.43 points
This creates two opposite player strategies. If your goal is to preserve your capital and play with minimal house advantage, Originals are the clear winner. If your goal is to climb the King of the Hill leaderboard and win prize drops, you will need to wager on higher-edge games—accepting higher expected losses in exchange for speed.
How the 15% Welcome Rakeback Stacks
When you register with code seteeve, you receive 15% instant rakeback on the house edge for your first 7 days. On an Original with a 1.00% house edge:
- $100 wagered generates $1.00 in house margin.
- 15% of that $1.00 ($0.15) is refunded immediately to your Rewards balance.
- Your net theoretical house edge drops to 0.85% (an effective 99.15% RTP).
Questions people ask
What is the baseline RTP of Gamdom Originals?
Gamdom Originals run at approximately 99.00% RTP, meaning a theoretical house edge of just 1.00%. This is significantly higher than online video slots (which usually range from 94% to 96.5%) and European roulette (97.30%).
Is the "100% RTP" claim on Gamdom Originals real?
Gamdom officially states that a portion of each bet on six specific Originals (Dice, Plinko, Mines, Keno, Pocket Dice, HiLo) is paid back instantly for your first $50,000 in wagers. Several review portals advertise this as "100% RTP" under the assumption that the rebate equals the entire 1% margin. Gamdom has never explicitly promised that the rebate covers 100% of the edge, so treat 99% as the guaranteed baseline.
Does playing Originals guarantee I will break even or win?
No. RTP is a long-term mathematical statistical average across millions of bets. In short individual gaming sessions, variance dominates. You can easily lose on a 99% game during a cold run or double your money on a hot streak. High RTP simply means the house takes a smaller statistical bite per dollar wagered.
Why do Gamdom Originals award fewer King of the Hill points?
Gamdom calculates leaderboard points using the formula: Wager × House Edge ÷ 0.035. Because Originals have a tiny 1% house edge, $100 wagered yields only 28.6 points. A 96% slot has a 4% edge, yielding 114.3 points for that same $100. High-edge slots push you up the leaderboard faster, but cost your bankroll roughly 4x more in expected loss.
How do I verify that Gamdom Originals are provably fair?
Every Original game displays a Provably Fair widget. Before you bet, Gamdom displays a SHA-256 hashed version of the server seed. After the bet, the unhashed secret server seed is revealed. You can paste the server seed, client seed, and nonce into an independent verifier to verify the outcome was cryptographically predetermined and never manipulated.
Sources
- Gamdom Help Center: Gamdom Originals · 99% RTP baseline and instant payback on six games up to $50,000 wagered
- Gamdom Help Center: King of the Hill · points calculation formula
- Gamdom Provably Fair Documentation · SHA-256 hashing and seed generation
Checked 2026-09-03.