Game Restrictions / Eligibility
Different games contribute differently to the fulfilment of wagering requirements. For instance, slots and scratch cards usually contribute 100% towards wagering requirements, while blackjack contributes just 25% or less. Games like craps, bingo, and roulette do not contribute towards wagering requirements at many casinos.
The casino usually lists the wagering contributions for each game in its terms and conditions. Knowing this information is critical because it allows you to plan your play. You can restrict your play to the eligible games and more importantly, stay away from the excluded games, i.e. those games that do not contribute to the overall wagering.
The contribution percentage of a game towards the wagering requirements is usually determined by the return-to-player percentage possible when playing the game in question. Blackjack, when played perfectly, offers very close to break even for the player. This is why casinos effectively increase the wagering requirements for those wanting to play through a bonus at the blackjack tables. If the game contributes 25% towards wagering, the total wagering requirement has effectively been increased by a factor of four.