What is RTP?
RTP stands for Return to Player. It’s a percentage that represents how much of every pound wagered on a game is returned to players over time.
Example: A game with 97% RTP returns £97 for every £100 wagered across all players over millions of rounds.
The remaining 3% is the house edge – the casino’s mathematical advantage.
RTP Is Not What You Win Per Session
This is the most important clarification about RTP: it is not a guarantee of your per-session return.
A 97% RTP doesn’t mean if you deposit £100 you’ll get back £97. It means:
- Over a very large number of rounds (millions), total returns trend toward 97% of total wagered
- In any individual session, results can vary wildly in either direction
- Short sessions are dominated by variance, not RTP
You might play 50 rounds and return 150% of your stake. You might play 50 rounds and return 20%. Both are compatible with a 97% RTP game.
RTP only “becomes real” over extremely long timeframes and extremely large sample sizes – timeframes no individual player ever experiences.
Crash Game RTP Comparison
| Game | Provider | RTP | House Edge |
|---|---|---|---|
| Plinko (Low Risk) | BGaming | 99% | 1% |
| Mines (Low Risk) | BGaming | 99% | 1% |
| Aviator | Spribe | 97% | 3% |
| JetX | SmartSoft | 97% | 3% |
| Zeppelin | BGaming | 97% | 3% |
| Spaceman | Pragmatic Play | 96.5% | 3.5% |
| Balloon | Relax Gaming | 96.2% | 3.8% |
| Rocketman | Elbet | 97.4%* | 2.6% |
| Cash or Crash | Evolution | 96.1% | 3.9% |
What Makes 97% Good or Bad?
Context matters. Compared to other casino game categories:
- Online slots: 94–96% RTP (average ~95%)
- Blackjack (perfect strategy): ~99.5% RTP
- Roulette (European): 97.3% RTP
- Roulette (American): 94.7% RTP
- Crash games (average): 96–97% RTP
Crash games at 97% RTP are competitive with European roulette and significantly better than most slots. If you’re moving from slots to crash games, your average return per pound wagered will likely improve.
The Practical Impact of RTP Differences
Over a long session, RTP differences compound. If you wager £500 total across a session:
| RTP | Expected Return |
|---|---|
| 99% | £495 |
| 97% | £485 |
| 96.5% | £482.50 |
| 96% | £480 |
| 94% | £470 |
A 97% vs 96% difference costs you £5 per £500 wagered. Over time, this adds up, but in any single session the variance overwhelms this difference.
Key point: For casual players, RTP differences between 96–97% are largely irrelevant for any given session. For high-volume players, they matter.
Why Provably Fair Games Can Publish Exact RTP
Traditional RNG games have their RTP verified by third-party auditors (like eCOGRA). You trust the auditor’s word.
Provably fair crash games can publish their exact crash point formula, from which the RTP can be mathematically derived by anyone. This is a higher standard of transparency – you can calculate the theoretical RTP yourself from the published algorithm, rather than relying on an auditor’s summary.
This is one reason provably fair games like Aviator and JetX command trust: their RTP is a mathematical fact, not a certificate.
Variable RTP Games
Some crash-adjacent games (like Plinko and Mines from BGaming) have variable RTP depending on settings:
- Plinko: 95–99% RTP depending on risk level (Low/Medium/High)
- Mines: ~99% on lowest mine count, decreasing with higher mine counts
When you see “99% RTP” advertised for these games, check which setting applies. The highest-RTP settings (lowest risk) produce smaller but more frequent wins. The lowest-RTP settings produce larger but less frequent wins – and a worse expected return per unit wagered.
Volatility vs RTP: The Other Number That Matters
RTP tells you the expected return over millions of rounds. Volatility tells you how those returns are distributed in shorter timeframes.
A low volatility crash game:
- More frequent wins
- Smaller individual wins
- Steadier bankroll movement
- Better for entertainment
A high volatility crash game:
- Frequent losses
- Occasional large wins
- Bigger swings up and down
- Better for win-hunting
Two games can have identical RTP but very different volatility. Aviator and Mines both have 97%+ RTP, but their session experiences are completely different.
Key Takeaways
- RTP is a long-run average, not a per-session guarantee. Your session will be dominated by variance.
- 97% RTP = 3% house edge. The casino keeps £3 per £100 wagered, on average, over millions of rounds.
- Crash games are competitive with European roulette (~97.3%) and well above the average slot (~95%).
- The gap between 97% and 96.5% is £2.50 per £500 wagered — irrelevant in casual sessions, meaningful for high-volume play.
- Provably fair games publish their crash formula. You can verify the RTP mathematically, not just trust an auditor’s certificate.
- Variable-RTP games (Plinko, Mines) only hit 99% on their lowest-risk settings. Check which setting applies.
*Rocketman’s RTP is operator-adjustable between 96.5% and 98.5%. The figure shown is the default.