Infocom's second Interactive Fiction Plus game, Trinity tells a startlingly serious and mature story (though not as good as that of its predecessor, A Mind Forever Voyaging). Covering seven or eight seperate areas in addition to an entirely new universe, this is an epic game with lots of puzzles of all classifications and levels of difficulty. Though a few puzzles were not exactly obvious, this was a completely entertaining and fascinating game that told a story about nuclear weapons, a subject about which we are not as well informed as we should be. The ending is unexpected and perhaps unsatisfying (though not to me), but is completely logical, and one that any person familiar with time travel will agree with and applaud (it also solves a big mystery in the game). Trinity is definitely worth playing.