Phases may be played in any order at the choice of each individual player. Players announce what phase they are playing when they lay down their cards. They are then committed to that phase for the rest of the deal. A note must be kept of which phases each player has completed. No player is allowed to repeat a phase, so the players' options are reduced as the game progresses. To win you have to complete all 20 phases.. Phase 10 is a commercial version of the traditional card game Contract Rummy, but while Contract Rummy is played with standard playing-cards, Phase 10 uses special cards and has a somewhat different sequence of contracts.. Not familiar with Phase 10 but for me Mystery Rummy: Jack the Ripper has been a hit as far as set collecting goes. If the theme is a turn-off there's also Wyatt Earp which is in the same vein..