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.

Why Casinos Want You to Play Slots

Casinos heavily incentivize slot play because these games operate entirely on luck and possess a significantly higher house edge.

However, players must carefully check the terms, as some specific high-RTP slots (like Blood Suckers) are often explicitly excluded.

• The high house edge of slots balances the casino's risk of giving away free money
• Some casinos offer bonuses that can *only* be used on specific slot titles
• Playing a 0% contributing game by mistake will waste your time and bankroll

The Mathematical Penalty on Skill Games

Because these games feature an incredibly low house edge (often under 1%), casinos heavily penalize them regarding bonus contributions.

Many modern online casinos take this a step further and simply reduce the table game contribution rate to absolute zero.

Where to Find the Contribution Table

You must study this table carefully to ensure your favorite games are actually eligible for bonus play.

If you exclusively play live dealer roulette, accepting a bonus where roulette contributes 0% is a massive, incredibly frustrating mistake.

If you want to clear a bonus quickly and efficiently, you must temporarily embrace the high volatility of the slot machines.