Summer Sale!

I know I'm a little late but I figured this would be a good place to post games on sale that we could all play together (or just singleplayer games)!

I'll start off with a few:

KAG, a Terraria meets Chivalry style game which involves building and blowing up bases, really fun and great for teamwork, one of my favourite games atm.
http://store.steampowered.com/app/219830/

7DTD, a few of us played it on an mR server a while back and it was actually pretty fun, in essence it's DayZ meets Minecraft with more.
http://store.steampowered.com/app/251570/

Arma 2: DayZ
http://store.steampowered.com/sub/4639/

Chivalry, a first person medieval bloodbath
http://store.steampowered.com/app/219640/

Omegalodon, hunt a giant player controlled bipedal megalodon through a city in tanks, planes and on foot
http://store.steampowered.com/app/248350/

Guns of Icarus Online, Team based Airship combat simulator
http://store.steampowered.com/app/209080/

Mount and Blade, Chivalry with 128 players and a pretty good SP campaign, although the graphics are quite dated, which allows the massive 200 player battles to run without problems on even a laptop
http://store.steampowered.com/app/48700/