When you eagerly claim a massive casino bonus, the required playthrough or wagering requirement is usually heavily advertised.

Because different games have vastly different house edges, the casino assigns a specific "contribution percentage" to each game category.
The Safest Bet for Clearing Bonuses
In almost every single online casino, standard video slot machines contribute exactly 100% toward your wagering requirements.

Because the mathematical edge favors the house so heavily, the casino is confident they will slowly drain your balance.
Always read the "restricted games list" before spinning with bonus fundsClassic 3-reel slots sometimes have a lower contribution rate than modern video slotsProgressive jackpot slots are almost universally excluded from bonus play entirely Table Games: The Brutal Contribution Penalty
If you prefer table games like Blackjack, Baccarat, or Video Poker, clearing a bonus becomes an agonizingly slow grind.

If Blackjack contributes 10%, a $10.00 wager only removes a tiny $1.00 from your remaining playthrough total.
Protecting Your Bonus Funds
You must study this table carefully to ensure your favorite games are actually eligible for bonus play.

Furthermore, if you accidentally play a restricted 0% game with active bonus funds, the casino may confiscate your entire balance.
Wager AmountContribution RateAmount Deducted from Goal$20 on Slots100%$20.00$20 on Baccarat10%$2.00
If you want to clear a bonus quickly and efficiently, you must temporarily embrace the high volatility of the slot machines.