A downloadable mod for Windows, macOS, and Linux

OpenSA (SA stands for Swarm Assault) is a real time strategy game that requires you to control huge swarms of ants, beetles, spiders, scorpions or wasps in a desperate attempt to control the landscape. No resources, no population cap, just build your army and smash the enemy!

You do not have to build anything, all you need to do is to start instantly producing units and conquer other colonies. Easy and simple!

OpenSA recreates Swarm Assault game from 1999 which was hardcoded to 640x480 resolution and some of its mechanics are nowadays obsolete. That's why the idea of bringing this game to OpenRA engine has been born so everything can be either fixed or improved in the brand new engine. 

Main features:

  • Uses OpenRA as the game engine 
  • The whole original campaign was recreated with some minor modifications,
  • Multiplayer experience (LAN, Online)
  • Easy modding,
  • Support for any resolution,
  • Extra new custom missions,
  • Open source.

If you are interested in contributing to this project, go ahead and visit the Github page:



OpenSA_Version_20210523.zip 218 MB

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