Play Now

Here in this online RTS game, the action supposedly takes place on Mars. You have to use your strategies to build and protect your own colonies. Here in the game, you will have to hire highly skilled colonists, assist them in surviving mars-quakes, dust storms and other threats. The ultimate objective in the game is to build the most powerful and successful colonies on Mars. The game has many achievements to avail and use in order to become more effective. Before the start of each mission, you will have specified briefings to follow. Use the mouse of the computer to interact during the game play. Mars Colonies is one of our many Strategy Games that we publish on This game is also tagged as a Space game. Click the play button to start having fun. To play even more free games, view our popular and new games page. If you want to play more games like this, then you can simply check out the games inside the game tags that are the most relevant to your interests or the Strategy Games category or the games like this game page at the end of the game tags.

Swarm DefenderSwarm Defender
Swarm Defender
The Space GameThe Space Game
The Space Game
The Space Game: MissionsThe Space Game: Missions
The Space Game: Missions
Space Ship DefenderSpace Ship Defender
Space Ship Defender
Galactic TakedownGalactic Takedown
Galactic Takedown
Astral AllianceAstral Alliance
Astral Alliance
ShellCore Command SkirmishShellCore Command Skirmish
ShellCore Command Skirmish