2. Explore the House Edge
The house edge is the worst nightmare for any online casino player. This rate represents the amount the casino keeps from every free spin wager you make. If a slot machine has a 4% house edge, the house keeps $4 from every possible $100. Many slot machines indicate the RTP (return to player) rate instead of the house edge. So, subtract the RTP from 100% to get the house edge.
With that in mind, it's evident that a lower slot machine house edge will be favorable to your free spin sessions. The thing is that the house edge directly affects the average amount you lose per hour. This means players must carefully select the qualifying slot machines for the free spin credits.
Assuming you play 500 spins per hour and each spin costs $5 on a game with a 4% house edge. In that case, your expected hourly loss will be $100. From this math, you can safely conclude that a higher house edge leads to more free spin losses. Thankfully, the house edge only catches up after thousands of rounds on all online casino games.
3. Choose Low Variance Slots
Another critical feature of a slot machine to consider before playing the free spins is variance or volatility. High variance slots pay out less often but in significant amounts. This means the player's free spins will likely deplete before winning a payout on such slots. So, play the free spins on a game with low volatility. Remember, gamers must get the most from the extra spins as quickly as possible.
4. Check the Bonus Expiry Period
After claiming the bonus spins, most casinos will specify the duration of using them in the selected games. In other words, gamers don't have an eternity to play using these rewards. For this reason, it's best to go for bonus spins with the longest time, giving players ample time to implement whatever strategy they have. The most common free spin duration is seven days.