Single-player games like Action & Automation
Below are 8 single-player Steam games similar to Action & Automation, 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 Action & Automation page.
Ranked picks
- 1
Cosmic Robots
Single-player alternative to Action & Automation — playable solo, no multiplayer required. Shares Action and Strategy with Action & Automation.
Defend your planet from waves of robot invaders! Build powerful turrets, upgrade your defenses, and command robot units to fight drones, tanks, and massive bosses. Then send your own forces to attack the enemy planet in this action-packed sci-fi tower defense game.
- 2
Project Tomorrow
Single-player alternative to Action & Automation — playable solo, no multiplayer required. Shares Strategy with Action & Automation.
A base-building survival game with terraforming and crafting. Earth lies poisoned and abandoned ten thousand years after invasion. Awaken from stasis, defend your fragile foothold, and restore a dead world so humanity can live here again.
- 3
Echo Zero
Single-player alternative to Action & Automation — playable solo, no multiplayer required. Shares Action and Strategy with Action & Automation.
Descend into a dangerous, procedurally generated sci-fi underworld. Explore, gather resources, uncover powerful wargear and upgrades, rally your droids, build and defend your base, and battle a mysterious new species on the verge of breaching the surface, either alone or in co-op.
- 4
Mechs V Kaijus 2
Single-player alternative to Action & Automation — playable solo, no multiplayer required. Shares Action and Strategy with Action & Automation.
Mechs V Kaijus 2 is an Hybrid Tower/Base defense, with army vs army (tug of war style) tactics. From the cockpit of a mech, to build a huge base with Reactors, Mines and all type of tower army factories and super weapons.
- 5
I Missed the Apocalypse
Single-player alternative to Action & Automation — playable solo, no multiplayer required. Shares Action and Strategy with Action & Automation.
Humanity has fallen under alien control every mind but yours. Alone and immune, you must gather resources, build robots, and fortify your base against ever-larger night assaults. Grow strong enough to strike back at the purple fortress looming over Neo Roma.
- 6
Don't Mind the Robots
Single-player alternative to Action & Automation — playable solo, no multiplayer required. Shares Action and Strategy with Action & Automation.
Build deadly mazes and outsmart a rogue AI in this strategic tower defense game. Adapt your defenses, use aiming parameters to your advantage, and activate powerful perks to survive increasingly complex waves of incoming robots.
- 7
IRON GUARD
Single-player alternative to Action & Automation — playable solo, no multiplayer required. Shares Action and Strategy with Action & Automation.
A sci-fi roomscale VR Tower Defense game. Strategize to destroy waves of rogue robots and assist the powerful turrets with a handheld drone. Build and collect resources and help evacuate your crew from the alien planet.
- 8
Armed to the Gears
Single-player alternative to Action & Automation — playable solo, no multiplayer required. Shares Action and Strategy with Action & Automation.
Control a fully armed Mech and fight through cyberpunk cities, military bases and industrial ruins. Capture and defend territories, build turrets and structures, and wage war against powerful enemies!