Pong. That sucker was mean repetitive. Addictive too. Then Space Invaders, Pacman, Tetris, etc. those suckers never mixed up their gameplay with variety.
Modern games... Assassin's Creed. Great concept, great tech but unfinished so repetitive execution of minimal mechanics and enfroced repetitive combat towards the end coupled with even more repetitive flag finding (which I ignored completely on principle).
Try to be reasonable... its easier than you think...







