Easily one of the best games available on steam, DayZ Mod, MilSIM, Arma Life. Worth the purchase.

A fun and fast past 2d brawling game, free-to-play and no pay to win features it is a fun game to pick up and play for a few hours with friends.

DoD:Source was and still is a very enjoyable world war 2 shooter running on the source engine. Only con is the low player base.

If you don't already own it, then it wouldn't hurt to pick CSGO up. It's one of the top FPS world-wide and enjoyed by cs fans new and old.