Voted 20-50 games
I'll go through my steamlist now and point out games I 'intend' to play some day but may never get around to...
1) Assassin's Creed Brotherhood
2) Assassin's Creed Revelations
3) Assassin's Creed 3
4) Bastion
5) The Binding of Isaac
6) Dead Space 3
7) Mark of the Ninja
8) Max Payne
9) Max Payne 2
10) Max Payne 3
11) Rayman Origins
12) Spec Ops: The Line
13) The Walking Dead: Season 2
14) Worms revolution
15) XCOM: Enemy Unknown
16) Ys 1
17) YS 2
18) Ys Origin
19) Ys The Oath in Felghana
20) ...
Guess I should have voted under 20. There are other games I own that I may try out but I'm not actively interested in like Prince of Persia (that newest cell shaded one for lack of a better term). Older Xcom games if I get into Enemy Unknown, Civ 4 (I've heard it's the superior entry though I love Civ 5).
Most of this backlog has Diablo 3 to blame.
Only recently have I switch my main gaming addition over to Marvel Puzzle Quest.
On the bright side..I've pretty much stopped buying games for the last year and half. There are plenty I'm interested in but I recognize that it's not worth it until I get into the backlog. In fact, the ONLY game I'm buying this year is Dragon Age: Inquisition. I've already started replaying DA:O in preparation
