Team Fortress Classic and Civ5. It's sometimes confusing. "Alright, I need to focus all my production on Heavies and Demos." "Can I get a spearman in the flagroom?"
I played one when I was little. It was awesome but really weird. xD I want to play one of the games again. Gasp, I should ask for Steam money so I can get it for the celebration of the birth of the Christ!