Far into the future, different factions fight throughout the galaxy for control of resources using armies of advanced machines...
Metal Factions is a FREE 3D real time strategy game that runs on the Spring RTS engine.

It's an evolving game that currently features four factions: AVEN, GEAR, CLAW and SPHERE.
Main Features

  • 3D terrain and units
  • Intuitive physics with real-time simulated gravity, collision handling and projectile trajectories
  • Over 400 units including humanoid robots, tanks, ships, aircraft, buildings, defenses, etc.
  • Large variety of viable strategies : overpower your enemies with a determined push or overwhelm them with multiple fronts and sneaky guerrilla tactics. Bombard them into submission with land or naval artillery or cripple them with air strikes!
  • Play against other humans or against the AI
  • Works on Windows and Linux

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Latest Version

v1.87 - 2022-06-21
(changelog here)

Currently it requires Spring RTS engine version "105.0".


The game can be downloaded and played through a SpringRTS lobby client. Recommended clients:

Install the lobby client first, then you can get the necessary packages (engine, game, maps) through one of the following methods:

--------- Method 1 (recommended)

Get both the necessary engine and game versions by joining the official Spring server using Springlobby or another lobby client, connecting to the official server and joining the "nebula" MF battle rooms.

Lobby clients should download games, maps and engine versions automatically.

--------- Method 2

(currently not recommended)

--------- Method 3

If you already have the lobby client, engine and maps, Metal Factions can also be downloaded through here and manually placed on the Spring data directory (typically "C:\Users\<USER>\Documents\My Games\Spring\Games" on Windows or "/home/<USER>/.spring/games" on Ubuntu Linux).

--------- Maps

You can find more maps here.