Wagering is the multiplier. Contribution is whether the game even counts. A 40x on Crash can be a 400x in disguise.
Wagering is the multiplier. Contribution is whether that bet even moves the meter. A 40x on Crash is a 400x if Crash only counts 10 percent. If Crash counts zero, the meter never moves.
Updated September 2026. 18+ only.
What game contribution means
Game contribution is the percent of each bet the bonus meter accepts. It sits in the same T&Cs as the 40x. If you skip that table, the multiplier you thought you had is wrong.
Slots often count at 100 percent. Tables, live, and house originals often count at 10 percent, 5 percent, or zero. The lobby does not show this. The bonus terms do.
The multiplier itself is a different page: How Bonus Wagering Requirements Work.
The simple sum
$10 on a 100 percent slot counts as $10 of wagering.
$10 on a 10 percent original counts as $1.
$10 on a 0 percent game counts as nothing. You can still lose the money.
Turnover to clear = wagering base × multiplier × (100 ÷ contribution). Run the numbers here: Bonus Wagering Calculator.
Example. $100 bonus. 40x on the bonus only. Base is $4,000 if the game counts 100 percent. Same bonus on a 10 percent game is $40,000 of handle. Same bonus on a 0 percent game is not a clear. It is a grind that never finishes.
Typical contribution by game type
These are ranges we see on bonus T&Cs. They are not a promise from any one cashier. The table on the offer you clicked beats this list.
| Game type | Typical contribution | What a $10 bet counts as |
|---|---|---|
| Standard slots | 100% | $10 |
| Some high-RTP, jackpot, or bonus-buy slots | 0–50%, or banned | $0–$5, or a void risk |
| Crash, Dice, Mines, Plinko, Limbo | 0–100% | Often $0–$1 on crypto welcome offers |
| RNG roulette / blackjack / baccarat | 0–20% | $0–$2 |
| Live tables and game shows | 0–10% | Usually $0 |
| Video poker | 0–20% | $0–$2 |
Slots are not automatically safe. Named titles, Megaways on some sites, progressive jackpots, and bonus-buy features get pulled out of the 100 percent bucket. If the T&Cs list a game by name, that line wins over “slots 100%.”
Why Crash does not clear a slot bonus
Crash feels fast. The meter does not care how fast the line climbs. It cares what percent that stake is allowed to count.
On many welcome offers, house originals sit at 10 percent, 5 percent, or zero. You sent $10 on Crash. The bonus ledger took $1, or it took nothing. Play enough of that on a slot bonus and some brands treat it as the wrong game. That can be a void, not a slow clear. Why Casinos Void Bonuses.
House originals are also not one rule across brands. A default help-centre table can say one thing. The bonus you opted into can say another. Read the bonus, not the lobby row labelled Originals.
How the game itself works is here: Crash.
How to find the table before you opt in
- Open the bonus T&Cs, not the banner and not the game lobby.
- Find the heading that says game contribution, game weighting, eligible games, or percentage towards wagering.
- Check slots, then check originals by name: Crash, Dice, Mines, Plinko, Limbo.
- Check live, tables, jackpots, and bonus buys. A 0 percent line means the meter does not move.
- Check max bet while the bonus is on. An oversized Crash stake can kill the offer even if contribution is 100 percent. How a Max Bet Works During a Bonus.
- If the table is missing, skip the offer.
Free spins have their own lock on the winnings. Contribution still applies once those spins pay: How Free Spins Wagering Works.
What people get wrong
Clearing a slot bonus on Crash because Crash feels faster. If Crash is 10 percent, a 40x becomes a 400x of handle. If it is zero, the meter never moves.
Assuming every slot counts. The exclusion list is usually under the same table.
Mixing 100 percent games and 0 percent games in one session and wondering why the bar barely moved.
Thinking rakeback and a locked deposit bonus use the same table. Rakeback is usually just volume. A locked bonus is the table plus the multiplier plus the max bet.
FAQ
Does contribution change the bonus size?
No. It only changes how much of each bet the meter accepts.
Where is the table?
Bonus T&Cs. Not the game lobby. If the table is missing, skip the offer.
Do house originals always count?
No. Crash, Dice, Mines, Plinko and Limbo are the games people use to “clear faster.” That is why a lot of welcome offers cut them to 10 percent or zero.
If a game is 0 percent, can I still play it?
You can usually still click it. The meter ignores the stake. On some brands that is also how a void starts if the bonus said slots only.
Is 10 percent on blackjack a better deal because the edge is lower?
Not if you still have to put ten times the handle through. Run both numbers in the wagering calculator before you decide the table is “smarter.”
Last updated September 2026. 18+ only. This is not a bet.
