Humble Bundle has a “Fight 4 Your Friends Co-op Shooters” bundle, which includes some of the best co-op shooters currently available. Pay at least $15, and you will get Steam keys for the following games:
- Back 4 Blood – Mixed rating with 34,879 reviews on Steam
- Warhammer: Vermintide 2 – Very Positive rating with 72,337 reviews on Steam
- Killing Floor 2 Digital Deluxe Edition – Very Positive rating with 74,004 reviews on Steam
- Zombie Army Trilogy – Very Positive rating with 12,103 reviews on Steam
- Zombie Army 4 – Very Positive rating with 4,826 reviews on Steam
- The Anacrusis – Mostly Positive rating with 400 reviews on Steam
This Humble Bundle supports Trees, People, Water, and Coral Guardian and will be active for two weeks. If you opt to pay $10, you will not receive Back 4 Blood or Zombie Army 4. At normal pricing, the total cost for the games in this bundle is as much as $244.