A lot of the gaming industry is built on sequels and rehashing old and over used game mechanics, and so when something truly unique comes along, i think should be recognized.

Theseare the most unique games ive played.

Portal had brilliant writing, brilliant level design and a comletely mind boggling set of gameplay mechanics that still make my head spin with joy. Perhaps my favourite game ever.

Bioshock had the deepest, most compelling story ive seen in a video game, or film for that matter since half life 2, Brilliant atmosphere, voice acting, writing, and creative design. Also, Rapture is easily the most unique, and brilliant setting for a game to date. Bishock asks questions about philosophy and the human condition, and thats something i had never seen in a game before. Completely Mystifying.

Braid, like portal, was similarly mind boggling, but in a completely different way. The game mechanics were satisfyingly exploitable, simple on one level, and really complex on another. Also its beautiful art and indie sensibilities were beyond cool.

World of goo had, again, another unique artstyle, Great physics, Intuitive building mechanics, a GREAT SOUNDTRACK, and a knack for some serious cultural comentary.

Zeno Clash might be the weirdest experience ive had in a game. It combines a completely CRAZY artstyle, really great first person melee game mechanics, and excellent key board contols to create truly unique, weird and often disturbing experience.