LibreCoop is an open source coop mod for dhewm 3.
It's still alpha but you can find the source code in github
Only registered members can share their thoughts. So come on! Join the community today (totally free - or sign in with your social account on the right) and join in the conversation.
Gameplay preview of LibreCoop Alpha 1.2 (using dhewm3 1.5.1rc2)