Single-player games like Machines vs Monsters
Below are 8 single-player Steam games similar to Machines vs Monsters, 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 Machines vs Monsters page.
Ranked picks
- 1
Astro Company
Single-player alternative to Machines vs Monsters — playable solo, no multiplayer required. Shares Strategy and Early Access with Machines vs Monsters.
Build the path. Defend the Core. Combine towers, cards, and artifacts into broken synergies in an endless tower defense roguelike.
- 2
Axom: Conquest
Single-player alternative to Machines vs Monsters — playable solo, no multiplayer required. Shares Strategy and Indie with Machines vs Monsters.
Build and defend your fortress while expanding out in this hold-out tower defense roguelite. Battle across a procedural alien homeworld, fight back corrupted terrain, discover hundreds of structures and upgrades as physics-driven swarms threaten to wipe out humanity.
- 3
Qubicks
Single-player alternative to Machines vs Monsters — playable solo, no multiplayer required. Shares Strategy and Indie with Machines vs Monsters.
Qubicks is where tower defense meets roguelike as you venture across procedurally generated levels where you strategically position towers, balancing immediate survival with long-term growth. Upgrade your towers and heroes to adapt to difficult waves and ensure victory against alien inhabitants.
- 4
Management In Space
Single-player alternative to Machines vs Monsters — playable solo, no multiplayer required. Shares Strategy and Early Access with Machines vs Monsters.
Management In Space is a gritty sci-fi strategy roguelite where you find yourself in debt. Build, mine, trade, date, and defend using stations across the galaxy, all while wars swells, aliens devastate sectors, and cults rip the galaxy apart & release demons upon the cosmos.
- 5
SENTRY
Single-player alternative to Machines vs Monsters — playable solo, no multiplayer required. Shares Strategy and Indie with Machines vs Monsters.
SENTRY is an action-defense first person shooter where you defend your spaceship against invading aliens. Plot an escape route through hostile space and battle the enemy across your vessel with the support of traps, turrets and environmental destruction.
- 6
Parallax Blue
Single-player alternative to Machines vs Monsters — playable solo, no multiplayer required. Shares Strategy and Indie with Machines vs Monsters.
A strategy tower defence where you create the towers! Gather resources, build towers, defeat bugs, and survive. Unlock new weapons, create towers, gather resources, and die. Don't fall short of the Company's expectations... these resources are worth more than any life, including yours.
- 7
Grave Orbit
Single-player alternative to Machines vs Monsters — playable solo, no multiplayer required. Shares Strategy and Indie with Machines vs Monsters.
They buried the truth. The invasion did not end. Now it is coming home. Grave Orbit is a dark sci-fi survival campaign of relentless escalation, impossible odds, and a war that grows far beyond anything humanity was prepared to face.
- 8
We Build Below
Single-player alternative to Machines vs Monsters — playable solo, no multiplayer required. Shares Strategy and Early Access with Machines vs Monsters.
Get rich or get eaten. Build underground factories, automate production, and defend against parasites in this 1-3 player roguelite.