X-Com Enemy Unknown
Finished this on Normal level after about 60 hours with the Elite Soldier/Slingshot DLC. It's not really as long of a game as that number would suggest, but I was dead set on completing the Edison
Steam achievement, which means I had to interrogate one of every alien type that could be interrogated: and at a certain point in the game, the regular Floater aliens just stopped appearing. I kept seeing a lot of the Heavy versions, but none of the basic ones. I played through probably 15 unnecessary missions looking for one of those little buggers before I finally found one in a Terror mission.
As a big X-Com UFO Defense fan, I was very pleased with this remake. Yes, it's a much simplier game than the original, but I didn't feel like it was "dumbed down" to appeal to a wider audience. Seeing the game with modern graphics was a real treat, and the soldier profession choices allowed for some varied styles of play.
My two biggest complaints were 1: This game is not stable. More than a couple of times I made it nearly all the way through a difficult mission, just to have the screen freeze up on me after all the hard work had been done. And 2: If your looking for something in the way of an original story from this game, it's not going to happen.
Now if I can find Enemy Within super-cheap. My 2014 list