Weekend deals on Steam are nothing new, however this week Valve is going crazy with five big sales packed with great games.

First up we have the Tripwire publisher sale. This sale’s special occasion is to celebrate the Killing Floor franchise turning 10 years old. The entire Tripwire catalog is on sale, including both Killing Floor games and their DLC, the Red Orchestra series, and both Rising Storm games.

Bohemia are also having a big anniversary sale. All the Arma games and their DLC are discounted alongside some of the developer’s lesser known games, like Take On Mars.

Dovetail Games are holding their 10th anniversary too. Dovetail Games is one of those developers that focuses on incredibly detailed and intricate sim games, with Train Simulator 2019 and its mountains of DLC being their current big seller.

The Post-Apocalyptic Weekend sale is less focused on a specific company, and more about the overarching theme of wasteland warfare. There’s tons of popular post-apocalyptic games on offer, with some highlights being the Fallout series, Wasteland 2, Frostpunk, Mutant Year Zero: Road to Eden, the Borderlands games, XCOM 2, Grim Dawn, the S.T.A.L.K.E.R. franchise, the Metro series, the BioShock series, Elex, This War of Mine, and many, many more.

Finally, appease the Chaos gods in the Skulls for the Skull Throne sale. As you can imagine, this sale encompasses all the big Warhammer and Games Workshop titles on Steam, and many of them received updates to coincide with the sale.

All of these sales will be ending Monday morning.