Single-player games like Red Planet Rampart
Below are 8 single-player Steam games similar to Red Planet Rampart, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Red Planet Rampart page.
Ranked picks
- 1
Surviving Mars
Single-player alternative to Red Planet Rampart — playable solo, no multiplayer required. Shares Simulation with Red Planet Rampart.
There will be challenges to overcome. Execute your strategy and improve your colony’s chances of survival while unlocking the mysteries of this alien world. Are you ready? Mars is waiting for you.
- 2
Dead in Antares
Single-player alternative to Red Planet Rampart — playable solo, no multiplayer required. Shares Indie and Adventure with Red Planet Rampart.
Dead in Antares is a turn-based survival management game with RPG elements, set on an alien planet. Lead a crew of survivors sent on a mission to save humanity. Manage their needs, strengthen their teamwork, and explore this mysterious world to find a way back home.
- 3
Take On Mars
Single-player alternative to Red Planet Rampart — playable solo, no multiplayer required. Shares Simulation with Red Planet Rampart.
Take On Mars places you right in the middle of mankind’s most exciting undertaking. Start out in the seat of a rover operator, finish as the first human to have ever set foot on the Red Planet.
- 4
Ark of Charon
Single-player alternative to Red Planet Rampart — playable solo, no multiplayer required. Shares Simulation with Red Planet Rampart.
Build a mobile fortress on the back of a giant and mysterious walking Tree and embark on a journey in this merge of tower defense and colony simulation.
- 5
The Riftbreaker
Single-player alternative to Red Planet Rampart — playable solo, no multiplayer required. Shares Indie and Adventure with Red Planet Rampart.
The Riftbreaker is a solo or Co-op base-building, survival game with Action-RPG elements for up to 4 players. Hack & slash countless hordes of enemies. Build up your base, craft powerful weapons and research new inventions to survive.
- 6
Dig or Die
Single-player alternative to Red Planet Rampart — playable solo, no multiplayer required. Shares Indie and RPG with Red Planet Rampart.
Crash land on a hostile planet where you'll have to build the strongest defenses if you wish to live to escape from it. But be warned... this planet is merciless. Build strong, and smart; else physics may flood or destroy your only hopes of survival.
- 7
Oxygen Not Included
Single-player alternative to Red Planet Rampart — playable solo, no multiplayer required. Shares Indie and Simulation with Red Planet Rampart.
Oxygen Not Included is a space-colony simulation game. Deep inside an alien space rock your industrious crew will need to master science, overcome strange new lifeforms, and harness incredible space tech to survive, and possibly, thrive.
- 8
Mars Horizon
Single-player alternative to Red Planet Rampart — playable solo, no multiplayer required. Shares Indie and Simulation with Red Planet Rampart.
Lead a major space agency as you guide humanity to Mars in this strategy simulation game. Construct a base, design and build rockets, conduct missions throughout the Solar System, and write your own history of Space exploration. Created with support from the European Space Agency.