Sven Co-op is a co-operative game originally based around Valve Software's Half-Life. In this game players must work together against computer controlled enemies and solve puzzles as a team.
SYSTEM REQUIREMENTS
MINIMUM:
OS: Windows® 7 (32 or 64 bit)
Processor: 1 GHz single core processor
Memory: 512 MB RAM
Graphics: 64MB video card capable of using OpenGL 2.1 in immediate mode
DirectX: Version 11
Network: Broadband Internet connection
Storage: 2 GB available space
Sound Card: Any DirectSound or WASAPI compatible sound output.
Additional Notes: Some additional tools require .NET framework 3.5 or later. 3rd party content will require varying additional disk space.
https://store.steampowered.com/app/225840/Sven_Coop/