Casino Bonuses Explained Simply
Casino bonuses sound simple — the casino gives you extra money to play with. The catch is wagering requirements: you must bet the bonus a certain number of times before you can withdraw.
The Real Value Formula
Real value formula:
Real Value = (Bonus Amount × RTP) − (Bonus Amount × Wagering Requirement × House Edge)
Example: €100 bonus, 35x wagering, 96% RTP slot (4% house edge):
Wager needed = €3,500 | Expected loss = €3,500 × 4% = €140
You’re expected to lose €140 trying to clear a €100 bonus. The bonus has negative expected value for most players.
Exception: No-wagering bonuses (like PlayOJO’s free spins) have positive expected value.
Key Bonus Terms Glossary
| Wagering Requirement | How many times you must bet the bonus before withdrawal. 30x is fair. |
| Max Bet | Maximum bet allowed per spin while wagering. Usually €5. Breach this and winnings are voided. |
| Max Win | Maximum you can withdraw from bonus winnings. Often 3–10x the bonus. |
| Game Contribution | % each game type counts toward wagering. Slots: 100%. Live games: 5–20%. |
| Expiry | Time limit to use/clear the bonus. Usually 7–30 days. |