1. XIII
I first saw a trailer for this in the Xbox version of the first Splinter Cell game. I thought it was dumb at first, but after a while I started to really want the game. The style intrigued me. When the game showed up on GOG, I immediately wanted it.
2. Sniper Elite: Berlin 1945
I had considered getting this on Steam a while back, but for some reason I never got around to it. When I saw that it was on GOG, I really wanted it. The whole sniper thing really intrigues me, even if I'm not that great of a sniper in games.
3. Soldiers: Heroes of World War II
Despite stinking at strategy games, and despite the fact that I often have a hard time playing one for an extended period of time, the genre has intrigued for a few years. This game caught my attention for two reasons: (1) it is a World War II game, and (2) there is no base-building.
4. All the Alone in the Dark games
I have always wanted an old horror game of this style, and this series seems like the logical choice.
5. Sanitarium
Though I know little about this game, the whole concept just intrigues me, and the more I hear about it, the more I want it.