Possibly the best Free-To-Play open-world zombie apocalypse game on Steam so far. Fancy yourself zombie apocalypse game? Then this game is an absolute, experience yourself with both PvP & PvE online.

Let your creativity go wild! Based on source engine, this game would totally reminds you of the Half Life 2, with its massive community addons in the workshop, you can totally enjoy it!

It's a very competitive type of game which very relies on your skill & teammates communication & tactics. In which I recommend you to try out FaceIt or even ESEA if you're looking to play this game!