In the year 3000, it seems, five reels may sometimes mean six. Or seven. I.R.I.S. 3000 welcomes slots players to the future with a seriously innovative and exciting progressive online slot. Upon opening the game, the player may be surprised to see seven windows. Choose five of the seven; these are “opened” and make up your payline. But here’s the kick: Before each spin, the game chooses one of the seven windows. If a “closed” reel is chosen, it opens and you play with six reels! Seven reels are also possible and the progressive jackpot is only won if all reels are in play.