I have too many games. My steam account, created in 2004, has racked up 447 games. I still find myself scanning the list of installed games wondering what to play. Red Dead is an amazing game, got it cheap at Gamestop, but I haven't played it since I beat it. I'm a PC gamer at heart!
Right now I've been playing Natural Selection 2 (FPS/RTS hybrid MP only), I tried out Rift but I'm definitely not a MMO player. I just got done playing through The Walking Dead game by TellTale. I cried. It was an amazing game, and only cost $5.00 through the Humble Bundle. Very surprising because I've always said I'd never play 'one of those stupid point-and-click games.'
I find myself constantly going back to Team Fortress 2 for quick and dirty fun. If I have a couple hours to spare, I'll load up Tekkit (a minecraft mod pack) and try to make my nuclear reactor more sustainable, expand my lava/crude oil refineries, and upgrade solar panels. Tekkit will steal your life away, you've been warned! It adds 150x the gameplay of vanilla Minecraft.
Huge gamer here!