Much like its predecessor, Half-Life 2 is an amazing game, and an amazing experience. Buy. This. Game.

It’s like half life, but with more everything. Oh and fat barney.

It’s Half-Life. Buy it. Install it. Play it. Beat it. Love it.

ArmA 3 is a realistic military shooter set in a near future, the game tackles moral issues and has a great player base, the mods and DLC really improve the game itself, can’t recommend anymore

The game may be all but abandoned by valve, (with the exception of the baby, janitor and potted plant) but damn is it one of if not THE best team-based first person shooters out there.

One of the best sandbox games in existence, as long as you don’t include DarkRP. No-one likes DarkRP.