Single-player games like The Echoes of Mars
Below are 8 single-player Steam games similar to The Echoes of 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 The Echoes of Mars page.
Ranked picks
- 1
CHAOTIC ERA
Single-player alternative to The Echoes of Mars — playable solo, no multiplayer required. Shares Strategy and Indie with The Echoes of Mars.
AT THE LIMITS OF EARTH, AT THE EXTREMITY OF HEAVEN. A REAL-TIME STRATEGY NIGHTMARE.
- 2
Nexus Defenders
Single-player alternative to The Echoes of Mars — playable solo, no multiplayer required. Shares Strategy and Indie with The Echoes of Mars.
Tower Defense meets a Visual Novel narrative. Place an arsenal of towers to halt the invading enemy. Use special abilities such as napalm strikes, EMP blasts, and orbital lasers. A sci-fi space drama, filled with dialogue choices.
- 3
Unearthing Invasions
Single-player alternative to The Echoes of Mars — playable solo, no multiplayer required. Shares Strategy and Casual with The Echoes of Mars.
A 3d tower defense game set in space. Protect the last resource outposts from the ongoing Alien attacks! Can you hold out in these ever increasing difficult waves of enemies and protect the last of your resources and Energy?
- 4
Anomaly: Warzone Earth
Single-player alternative to The Echoes of Mars — playable solo, no multiplayer required. Shares Strategy and Indie with The Echoes of Mars.
Lead an armored squad through the perils of this reversed tower defense action-strategy game!
- 5
Revenge of the Titans
Single-player alternative to The Echoes of Mars — playable solo, no multiplayer required. Shares Strategy and Indie with The Echoes of Mars.
The ultimate mash-up of Real-time Strategy and Tower Defense!
- 6
CARNAGE OFFERING Tower Defense
Single-player alternative to The Echoes of Mars — playable solo, no multiplayer required. Shares Strategy and Indie with The Echoes of Mars.
The replicator robots are back! It's 2528. The machines are increasingly infecting the planets with genetically modified monsters. Challenge them and try to stop the onslaught. Upgrade buildings and heroes, mine resources, discover technology and fight to save humanity!
- 7
DG2: Defense Grid 2
Single-player alternative to The Echoes of Mars — playable solo, no multiplayer required. Shares Strategy and Indie with The Echoes of Mars.
Great strategy is timeless. Build, adapt, and defend across dynamic maps, solo or online - every session brings new strategies, new solutions, and new surprises. Now is the perfect time to enter the grid.
- 8
Infested Planet
Single-player alternative to The Echoes of Mars — playable solo, no multiplayer required. Shares Strategy and Indie with The Echoes of Mars.
Command a team of 5 elite soldiers against an alien horde of 100,000. Surrounded on all sides, you must outmaneuver and outsmart the enemy.