Single-player games like Mars vs. Robots
Below are 14 single-player Steam games similar to Mars vs. Robots, 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 vs. Robots page.
Ranked picks
- 1
VOIDCRISIS
Single-player alternative to Mars vs. Robots — playable solo, no multiplayer required. Shares Action and Strategy with Mars vs. Robots.
"VOIDCRISIS" is a four-player tower offense game on an undulating battlefield. Operate combat bio-machines called VA (Vital Armor) drawn with dynamic mechanical art shaders and work together to clear high-difficulty stages.
- 2
Strike Suit Zero
Single-player alternative to Mars vs. Robots — playable solo, no multiplayer required. Shares Action with Mars vs. Robots.
Pilot the mecha Strike Suit across massive fleet battles where your dogfighting skills decide Earth's fate. Fast, frantic space combat with capital ship destruction, multiple endings, and a universe that's anything but empty. This is space combat reborn.
- 3
HSS:Reload
Single-player alternative to Mars vs. Robots — playable solo, no multiplayer required. Shares Action with Mars vs. Robots.
This is a very fast God's perspective roguelike shooter, the player will pilot the mech, explore the alien frontier, enjoy the "Crimsonland + Vampire Survivors (Vampire Survivors)" endless killing!
- 4
War Tech Fighters
Single-player alternative to Mars vs. Robots — playable solo, no multiplayer required. Shares Action with Mars vs. Robots.
War Tech Fighters - the space action game that combines the spectacular action of Japanese Anime with Hollywood Blockbusters. Configure, upgrade and customize your War Tech and dive into battle to fight back the Zatronian forces and save your galaxy!
- 5
Grey Goo
Single-player alternative to Mars vs. Robots — playable solo, no multiplayer required. Shares Strategy with Mars vs. Robots.
Fight for control of a frontier world. Gather resources, build your base, and command your forces in battle. Survive long enough to unleash your ultimate weapon - THE EPIC.
- 6
Iron Brigade
Single-player alternative to Mars vs. Robots — playable solo, no multiplayer required. Shares Action and Strategy with Mars vs. Robots.
Join The Mobile Trench Brigade and protect humanity from the evil Monovision menace!
- 7
Ocean Keeper: Dome Survival
Single-player alternative to Mars vs. Robots — playable solo, no multiplayer required. Shares Action with Mars vs. Robots.
Explore dungeons, fight hordes of monsters and survive on a huge map. This is Ocean Keeper - an action roguelike with tower defense elements. Mine resources in caves, customize your Mech Spider, upgrade different weapons and face dangerous bosses that won't leave you a chance!
- 8
Codex of Victory
Single-player alternative to Mars vs. Robots — playable solo, no multiplayer required. Shares Strategy with Mars vs. Robots.
In this sci-fi turn-based strategy with real-time base-building elements, you’ll be defending human territories against the transhuman Augments. Expand your HQ, and manufacture and upgrade an army of advanced drones to wage interplanetary war for Humanity!
- 9
Grim Knight
Single-player alternative to Mars vs. Robots — playable solo, no multiplayer required. Shares Action and Free To Play with Mars vs. Robots.
explore dungeons, collect powerful relics, defeat monsters. Hoards of unique monsters with speciel abilities are guarding the dungeons from you. Use and combine a ton of diffrent relics and weapons to get stronger and cut through them and their bosses.
- 10
King Krieg
Single-player alternative to Mars vs. Robots — playable solo, no multiplayer required. Shares Action and Free To Play with Mars vs. Robots.
Combine abilites to create infinite possibilities of spells and decimate thousands of enemies. King Krieg is a top-down arena roguelite where YOU are the KING and you buy mystical items, find powerful guns, and craft new spells
- 11
Thunder Ronin
Single-player alternative to Mars vs. Robots — playable solo, no multiplayer required. Shares Action with Mars vs. Robots.
Thunder Ronin is a samurai souls-like boss rush. on your way to take revenge on your familty. slash, deflect, and dash through powerful foes. fighting in ancient japan between sakura trees and the glow of the moon.
- 12
Whale Flesh
Single-player alternative to Mars vs. Robots — playable solo, no multiplayer required.
A short horror game where you dig through the flesh of a giant whale
- 13
A game about cards
Single-player alternative to Mars vs. Robots — playable solo, no multiplayer required. Shares Strategy with Mars vs. Robots.
The pure card game, craft weapon cards, slay monster cards, create insane combos with cards. everything is cards. i love cards. the deckbuilder for card lovers
- 14
IncreKnight
Single-player alternative to Mars vs. Robots — playable solo, no multiplayer required. Shares Action and Strategy with Mars vs. Robots.
An Incremental game about Slaying a Dragon.