encourage cooperative games

To begin to find buddies to play these co-op games. Community is often toxic, but there are adequate players.
List of games:
Left 4 Dead 1-2
Killing Floor 1-2
Borderlands 1-2, The Pre-Sequel
Call of Duty - Black Ops, zombie mode or multiplayer. Can any other cold, basically.
Dead by Daylight
GTA Online
Payday 1-2
All games are exclusively IMHO, someone will come, someone - no.

A Way Out

Conan Exiles. Seriously, rent a server, get the group forward to install a mod and build a fortress. In the single there is absolutely simulator waving a pickaxe, and so it is.

danilpc
varfeys