Game weighting is the quietest multiplier in any bonus. The headline says 35x. The weighting table decides whether that means 35x or 350x.
The table that governs your bonus
Typical weightings, though every operator writes its own:
| Game | Contribution |
|---|---|
| Slots | 100% |
| Video poker | 10% or 0% |
| Roulette | 10% or 0% |
| Blackjack | 5% or 0% |
| Baccarat | 5% or 0% |
| Live dealer tables | 0% to 10% |
| Progressive jackpot slots | Often 0% |
Do the arithmetic
A $500 bonus at 35x needs $17,500 of qualifying turnover.
- On slots at 100%, you stake $17,500.
- On blackjack at 10%, every $1 staked contributes $0.10, so you must stake $175,000.
- On blackjack at 0%, you can stake forever and never move the counter by a cent.
That is not a subtlety. It is a tenfold change in the cost of the bonus, and it lives in a table below the fold.
Why the weightings are set this way
Weighting tracks the house edge. Slots carry a margin of roughly 2% to 12%, so the operator is happy for you to grind $17,500 through them. Blackjack played competently carries a margin of about 0.5%. An operator that let you clear a bonus on blackjack would be handing over the bonus for almost nothing, and it will not do that.
Check it before you accept, not after. Some operators also weight specific slot titles at 0%: the high-RTP ones, invariably.