- Wagering contribution percentage: slots often contribute 100% toward rollover, whereas instant games like Mines may contribute 10% to 20%, or nothing at all.
- Maximum permitted stake: bonus terms usually enforce a maximum bet per round when promotional funds are in play, commonly $5.00.
- Cash-out multiplier minimums: some terms require bonus-funded picks to reach a minimum multiplier, such as 1.50×, for the stake to count toward rollover.
Worked wagering example. Take a $100 bonus with a 30× rollover requirement. On a slot weighted at 100%, you must turn over $100 × 30 = $3,000. If Mines contributes only 10%, every $1 wagered counts as $0.10, so the requirement becomes $3,000 ÷ 0.10 = $30,000 in Mines turnover. At a $5 bonus bet cap, that is 6,000 rounds. Against a 2% effective house edge, the expected cost of clearing it in Mines is roughly $600, which is six times the bonus itself. This is why the weighting line in the terms matters far more than the headline percentage.
Reading the terms before accepting an offer prevents nasty surprises around bonus forfeiture or withdrawal restrictions. The same attention deserves to extend to the protective tools sitting in the same account menu.