A casino bonus is a loan with conditions, and the central condition is the wagering requirement: a multiple of the bonus, or of bonus plus deposit, that must be staked before the money becomes withdrawable. RioBet states the multiple in each promotion's terms, and the arithmetic behind it decides whether an offer is a genuine cushion or an expensive decoration. Most players never do the arithmetic; this article does.
The requirement applies to stakes, not losses. A 35x requirement on a 100 bonus means 3,500 in total wagers, regardless of whether those wagers win or lose along the way.
The Worked Example
Take a 100 bonus at 35x on slots contributing 100 percent. Expected loss across 3,500 wagered on a 96 percent slot is 3,500 times 4 percent, which is 140, more than the bonus itself. The same bonus cleared on a game contributing 10 percent requires 35,000 wagered and an expected loss of 1,400. Contribution percentages, not the headline multiple, are where offers live or die, and they are buried in the terms table rather than the banner.
| Game type | Typical contribution | Effect on a 35x requirement |
|---|---|---|
| Slots | 100% | Requirement as advertised |
| Live game shows | 50% | Doubles the wagering needed |
| Roulette, blackjack | 10% | Tenfold wagering needed |
| Video poker, craps | 0-5% | Effectively excluded |
Time Limits and Maximum Bets
Bonuses expire, commonly seven to thirty days, and the window interacts with the requirement: 3,500 wagered at a comfortable pace fits a month easily, while a 35,000 effective requirement from low-contribution play does not. Maximum bet rules cap stakes during wagering, typically five currency units or ten percent of the bonus per spin, because unrestricted stakes would let a player clear or bust the requirement in minutes; breaching the cap voids the bonus and its winnings.
- Contribution table. Decides the true multiple per game.
- Expiry window. Decides the feasible pace.
- Max bet cap. Decides the allowed variance while clearing.
- Game exclusions. Some titles contribute nothing at all.
Sticky, Cashable and Non-Withdrawable
Cashable bonuses join the balance after clearing. Sticky bonuses, sometimes called phantom, vanish at withdrawal leaving only the winnings. Non-withdrawable bonus credit funds play but never converts. The label appears in the terms, and the difference between cashable and sticky is the difference between an asset and a demo chip with a deadline.

When to Decline an Offer
Decline when the effective wagering, computed with contributions, exceeds what your planned monthly volume would reach anyway; decline when the expiry forces a pace above your limits; decline when the max-bet cap conflicts with the stake your bankroll plan uses. An offer accepted out of habit is a wagering obligation attached to money you already owned, and the terms page is the only place where that sentence becomes visible.
Reading Terms as a Skill
The four fields to read are multiple, contribution table, expiry and max bet; everything else is secondary. Promotion terms change between campaigns, so check the current terms at redemption rather than trusting memory of a previous offer. Players who master these four fields stop asking whether bonuses are good and start asking whether this bonus, at these numbers, fits this month's plan, which is the only version of the question with an answer.

The arithmetic behind "35x"
A wagering multiplier applies to bonus money, deposit plus bonus, or free-spin winnings — three different bases that produce three very different real costs. Thirty-five times a 100-unit bonus is 3,500 units of turnover; at a 2% house edge the expected cost of that turnover is 70 units, which is the true price tag of the "free" money. Changing the base to deposit plus bonus doubles the tag without changing the headline number.
Game weighting compounds the effect: slots at 100% versus tables at 10% means a table player needs ten times the turnover for the same progress. The weighting table, not the multiplier, is where most bonuses become unwinnable.
Checklist before opting in
- Base: bonus only, or deposit plus bonus? Read it in the terms, not the banner.
- Weighting: confirm your games count at 100% or adjust the plan.
- Max bet: rollover stakes above the cap void the bonus and sometimes the winnings.
- Expiry: calendar days versus active days; both exist and both bite.
A bonus with honest terms is a discount on entertainment you planned anyway. A bonus whose terms you have not read is a loan with an interest rate written in a footnote.
Responsible gambling — 18+. Betting and casino games are entertainment for adults only. Set deposit and time limits before you play, never chase losses, and use self-exclusion tools if play stops being fun. Promotion terms change often — always check the current terms on the operator page.