Game restrictions are equally important. Your free spins will nearly always only work on one pre-selected slot game, or maybe a small group of games. If you seek to use them on a different game, you’ll likely lose the bonus and any winnings. Also, even when you’re fulfilling the wagering, not all games count the same. Slots typically contribute 100%, but table games like blackjack or roulette might contribute far less, or zero. Focus on the designated games to ensure every bet moves you closer to cashing out.