Single-player games like Day on Mars
Below are 8 single-player Steam games similar to Day on Mars, 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 Day on Mars page.
Ranked picks
- 1
Gachi: Space Orgasm
Single-player alternative to Day on Mars — playable solo, no multiplayer required. Shares Adventure with Day on Mars.
Gachi: Space Orgasm is a third-person shooter with lots of weapons to choose from, hot scenes to unlock, weapon upgrades, and unique levels and boss battles. The dynamic controller adds an extra layer of excitement to the gameplay.
- 2
The Ark Adult Game
Single-player alternative to Day on Mars — playable solo, no multiplayer required. Shares Adventure with Day on Mars.
The Ark Adult Game is an immersive action-adventure title set in a futuristic universe. Explore, collect, and preserve various races and species as you navigate through perilous encounters.
- 3
Last Hope
Single-player alternative to Day on Mars — playable solo, no multiplayer required. Shares Indie and Adventure with Day on Mars.
An erotic adventure through space with three very busty women as you try to save the day while enjoying the many pleasures of their company.
- 4
HENTAICRAFT
Single-player alternative to Day on Mars — playable solo, no multiplayer required. Shares Indie and Adventure with Day on Mars.
HENTAICRAFT is a sandbox with an endless open world that consists of cubes. Your possibilities here are limited only by your imagination. Get resources, build, travel and enjoy a cute character!
- 5
Deep Space
Single-player alternative to Day on Mars — playable solo, no multiplayer required. Shares Indie and Adventure with Day on Mars.
You are entrusted with the role of one of the elite captains, put on a high-tech mech suit suitable for travel into space and go on an exciting journey.
- 6
Outlast 2
Single-player alternative to Day on Mars — playable solo, no multiplayer required. Shares Indie and Adventure with Day on Mars.
Outlast 2 introduces you to Sullivan Knoth and his followers, who left our wicked world behind to give birth to Temple Gate, a town, deep in the wilderness and hidden from civilization. Knoth and his flock are preparing for the tribulations of the end of times and you’re right in the thick of it.
- 7
SUCCUBUS
Single-player alternative to Day on Mars — playable solo, no multiplayer required. Shares Adventure with Day on Mars.
Become a demonic priestess of lust and use her unique skills to take revenge on your enemies. Regain your kingdom making hell tremble under your hooves! Leave no one alive if they won't bend the knee.
- 8
Lust for Darkness
Single-player alternative to Day on Mars — playable solo, no multiplayer required. Shares Indie and Adventure with Day on Mars.
A psychological horror of seeking satisfaction on the border of two intertwining worlds. An intriguing plot with erotic and occult themes guides the player's character through the Yelvertons' Victorian mansion and a perverse land inspired by Lovecraft's works and paintings of Zdzisław Beksiński.