You have been playing one game for longer than you think, a lot longer. Like when you think that it is 9.30pm but it is 2.00am!. Games that I got addicted to were Deus Ex, KotOR 1 & 2, Half-Life (and expansions), Starcraft and expansion, Star Wars Rebellion and a few others that I can't remember. I get more addicted to RPG or RTS than FPS because in FPS, you complete your mission and exit. In RPG, there is so much to do and RTS can go for a while.