2.5 Seconds - Game Design Wiki

Justin Love once asked a co-worker what type of RedemptionGames made the most money. The answer was "Ones that take 2.5 seconds to play."

Simple math tells us why:

1 hour = 60 minutes = 3600 seconds.
3600 / 2.5 = 1440 theoretical maximum plays per hour.
3600 / 45 = 80 plays per hour.

Unfortunately, fitting a compelling game experience into 2.5 seconds is a bit tricky. Frequently these games rely on some kind of Jackpot to create "just missed it" excitement.

Common types of 2.5 second games include ?CoinPushers and LightStop games.