Single-player games like Plasma Dome
Below are 8 single-player Steam games similar to Plasma Dome, 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 Plasma Dome page.
Ranked picks
- 1
Axom: Conquest
Single-player alternative to Plasma Dome — playable solo, no multiplayer required. Shares Strategy with Plasma Dome.
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.
- 2
Rogue Realm: Guardian Grids
Single-player alternative to Plasma Dome — playable solo, no multiplayer required. Shares Strategy with Plasma Dome.
Rogue Realm: Guardian Grids is a medieval fantasy blend of tower defense and roguelike progression. Build defenses on a grid, manage resources, and survive ever-evolving enemies.
- 3
TechGuardian: Territory Defense
Single-player alternative to Plasma Dome — playable solo, no multiplayer required. Shares Strategy with Plasma Dome.
This is a sci-fi strategy game featuring a Defense Mode focused on tower defense and an Attack Mode focused on combat. The game includes over 30 different buildings and units, all of which can be upgraded through entry editing to enhance their performance and firepower.
- 4
Zero Bugs Given
Single-player alternative to Plasma Dome — playable solo, no multiplayer required. Shares Strategy with Plasma Dome.
Zero Bugs Given is a tower defense / roguelike game designed with the ambition of making every run different from the others. Every wave, a pair of bonus and malus will force you to adapt in the best way you can. Build your defense and try survive as long as you can!
- 5
Defe
Single-player alternative to Plasma Dome — playable solo, no multiplayer required. Shares Strategy with Plasma Dome.
Tower Defense Roguelike with Action RPG elements, combining base building, real-time strategy, resource management, and intense top-down combat. Build by day. Defend by night. Explore and survive, if you can.
- 6
Kingdoms vs Zombies
Single-player alternative to Plasma Dome — playable solo, no multiplayer required. Shares Strategy with Plasma Dome.
Kingdoms vs Zombies is a blend of strategy, tower defense, and roguelike gameplay, where you must defend your kingdom against endless hordes of the undead.
- 7
Orcdom
Single-player alternative to Plasma Dome — playable solo, no multiplayer required. Shares Strategy with Plasma Dome.
Orcdom is a minimalist tower defense game with full freedom in tower placement. Defend your crystal from waves of orcs attacking from all directions. Plan your layout, time your spells, and unlock new strategy modes in this fast-paced tactical challenge!
- 8
Stronghold Crusader: Definitive Edition
Single-player alternative to Plasma Dome — playable solo, no multiplayer required. Shares Strategy with Plasma Dome.
Gird your loins and sharpen your steel! Besiege 20 unique enemy lords and battle friends online, in this expanded remaster of the classic 'castle sim'. Relive history with new units, opponents, visuals, audio, campaigns, skirmish trails, co-op and larger maps.