Single-player games like Mars Horizon 2: The Search for Life
Below are 15 single-player Steam games similar to Mars Horizon 2: The Search for Life, 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 Mars Horizon 2: The Search for Life page.
Ranked picks
- 1
Mars Horizon
Single-player alternative to Mars Horizon 2: The Search for Life — playable solo, no multiplayer required. Shares Strategy and Simulation with Mars Horizon 2: The Search for Life.
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.
- 2
Surviving Mars
Single-player alternative to Mars Horizon 2: The Search for Life — playable solo, no multiplayer required. Shares Strategy and Simulation with Mars Horizon 2: The Search for Life.
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.
- 3
Starship Colony
Single-player alternative to Mars Horizon 2: The Search for Life — playable solo, no multiplayer required. Shares Strategy and Simulation with Mars Horizon 2: The Search for Life.
A deep starship colony sim. Build your starship, manage air, water, food, fuel, energy, temperature and psychology to keep your crew alive across vast distances. Closed-loop system in space. Mining, wiring, plumbing, in-ship factory, (alien?) radio signals & translation, diplomacy, combat, and more.
- 4
Stellar Settlers: Space Base Builder
Single-player alternative to Mars Horizon 2: The Search for Life — playable solo, no multiplayer required. Shares Strategy and Simulation with Mars Horizon 2: The Search for Life.
Stellar Settlers is a chill space base/city builder and colony sim game. With unique vertical and horizontal base-building gameplay, settle on 10 hostile alien planets and build your own thriving colony. Get enough materials to build a physics-based Spaceship and try to escape from disasters.
- 5
Terraformers: First Steps on Mars
Single-player alternative to Mars Horizon 2: The Search for Life — playable solo, no multiplayer required. Shares Strategy and Simulation with Mars Horizon 2: The Search for Life.
Terraformers: First Steps on Mars is a free prologue of Terraformers, featuring an exclusive challenge to lead humanity's first attempt at settling the Red Planet.
- 6
Reshaping Mars
Single-player alternative to Mars Horizon 2: The Search for Life — playable solo, no multiplayer required. Shares Strategy and Simulation with Mars Horizon 2: The Search for Life.
「Reshaping Mars」is a colony simulation game on Mars, you will start by gathering resources, storing food, accepting immigrants, and building a better colony together. Develop powerful technologies for Mars Reshaping, make Mars great agai..sorry, just great. Don't forget to make the residents happy.
- 7
Solargene
Single-player alternative to Mars Horizon 2: The Search for Life — playable solo, no multiplayer required. Shares Strategy and Simulation with Mars Horizon 2: The Search for Life.
Take Command of a Space Corporation in the Sci-Fi Simulator Solargene! Manage personnel, design and develop colonies and orbital stations across the solar system! Mine resources, establish logistics, research cutting-edge technologies, trade, and complete missions
- 8
Take On Mars
Single-player alternative to Mars Horizon 2: The Search for Life — playable solo, no multiplayer required. Shares Simulation with Mars Horizon 2: The Search for Life.
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.
- 9
Warhammer 40,000: Boltgun
Single-player alternative to Mars Horizon 2: The Search for Life — playable solo, no multiplayer required.
Load up your Boltgun and unleash the awesome Space Marine arsenal to blast your way through an explosion of sprites, pixels and blood in a perfect blend of Warhammer 40,000, frenetic gameplay and the stylish visuals of 90’s retro shooters.
- 10
Starship Troopers: Ultimate Bug War!
Single-player alternative to Mars Horizon 2: The Search for Life — playable solo, no multiplayer required.
Lock and load into the Starship Troopers universe and join the Mobile Infantry in the most realistic depiction of war ever made! Experience an original story in this action-packed, first-person retro shooter. Would you like to know more?
- 11
Brewmaster: Beer Brewing Simulator
Single-player alternative to Mars Horizon 2: The Search for Life — playable solo, no multiplayer required. Shares Simulation with Mars Horizon 2: The Search for Life.
Brew your perfect beer in this relaxing home brewing sim. Use a realistic chemistry simulation to brew hoppy IPAs to creamy stouts. Customise your brewing space, create recipes and label your beer, unlock new equipment and enter competitions. Learn to brew, refine your craft and become a Brewmaster!
- 12
Dark Future: Blood Red States (Classic)
Single-player alternative to Mars Horizon 2: The Search for Life — playable solo, no multiplayer required. Shares Strategy with Mars Horizon 2: The Search for Life.
Step into the extraordinary, dystopian world of Dark Future, filled with danger, chaos and adventure. A game of both action and strategy unlike any other, featuring a unique time dilating command mode to help you make tactical decisions on the dangerous highways of this world.
- 13
Chainsaw Warrior (Classic)
Single-player alternative to Mars Horizon 2: The Search for Life — playable solo, no multiplayer required. Shares Strategy with Mars Horizon 2: The Search for Life.
Chainsaw Warrior from Games Workshop is the classic game for one strong-nerved player! It's 2032 and spatial warping has opened a hole into another dimension in the midst of the old municipal buildings at the heart of Manhattan. Bizarre and dangerous creatures are flooding into our dimension.
- 14
Ogre
Single-player alternative to Mars Horizon 2: The Search for Life — playable solo, no multiplayer required. Shares Strategy with Mars Horizon 2: The Search for Life.
The official adaptation of the legendary wargame from Steve Jackson Games. Engage in futuristic warfare with armored hovercraft, superheavy tanks, infantry, and giant cybernetic war machines called "Ogres".
- 15
Achtung! Cthulhu Tactics
Single-player alternative to Mars Horizon 2: The Search for Life — playable solo, no multiplayer required. Shares Strategy with Mars Horizon 2: The Search for Life.
Challenge the horrifying reign of Nazi terror and battle an immortal evil in Achtung! Cthulhu Tactics; a turn-based tactical strategy game set in the award-winning Achtung! Cthulhu universe.