Single-player games like Germ Swarm: Evolution & Mutation
Below are 8 single-player Steam games similar to Germ Swarm: Evolution & Mutation, 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 Germ Swarm: Evolution & Mutation page.
Ranked picks
- 1
Red Rocket Defencism
Single-player alternative to Germ Swarm: Evolution & Mutation — playable solo, no multiplayer required. Shares Strategy and Indie with Germ Swarm: Evolution & Mutation.
You, a military officer from our great autocratic motherland, must protect our precious rockets from the evil capitalist enemy in this revolutionary base building strategy game. Bribe! Surveil! Purge! Imbibe! The end justifies the means when you have to protect our invaluable rockets!
- 2
Slorbis: Tower Defense
Single-player alternative to Germ Swarm: Evolution & Mutation — playable solo, no multiplayer required. Shares Strategy and Indie with Germ Swarm: Evolution & Mutation.
Immerse yourself in the cozy, minimalist world of Slorbis: Tower Defense. Build towers with unique roles, buy modifiers of varying rarities, collect money, and face the unpredictability of procedurally generated maps as you defend the king from dark spirits.
- 3
Nocthra
Single-player alternative to Germ Swarm: Evolution & Mutation — playable solo, no multiplayer required. Shares Strategy and Indie with Germ Swarm: Evolution & Mutation.
Nocthra is a grim retro-style game where you play as a necromancer defending waves of attackers by raising hordes of minions from fallen enemies’ corpses. Protect your graveyard from relentless assaults, and dive into a perk system that offers endless skill combinations for infinite replayability.
- 4
Chaos Rune : Heroes
Single-player alternative to Germ Swarm: Evolution & Mutation — playable solo, no multiplayer required. Shares Strategy and Indie with Germ Swarm: Evolution & Mutation.
Chaos Rune Heroes is a lightweight roguelike game with fast-paced, turn-based + real-time mechanics. You must survive within a limited time and complete specific challenges to advance to the next round. Get ready for this chaotic brawl!
- 5
Gelluloid Domination
Single-player alternative to Germ Swarm: Evolution & Mutation — playable solo, no multiplayer required. Shares Strategy and Simulation with Germ Swarm: Evolution & Mutation.
Gelluloid Domination is a fast-paced, strategic and tactical game where you grow a network of cells. Expand by assimilating nearby cells, fight off pathogens and develop nanoboosts in the lab. Other cells want to propagate their DNA too, so this won't be easy. Can your cells achieve domination?
- 6
Hear My Cult
Single-player alternative to Germ Swarm: Evolution & Mutation — playable solo, no multiplayer required. Shares Strategy and Indie with Germ Swarm: Evolution & Mutation.
Build a Cult. Command an Army. Earn the Favor of Ancient Gods. Recruit followers, summon terrifying creatures, perform forbidden rituals, and forge a different army every run in this dark fantasy roguelite.
- 7
城市塔防-City Tower Defence
Single-player alternative to Germ Swarm: Evolution & Mutation — playable solo, no multiplayer required. Shares Strategy and Indie with Germ Swarm: Evolution & Mutation.
Help defend Shanghai from an invasion of snowmen! Build and upgrade towers across a battlefield that changes every run, shape your strategy with powerful cards and between-wave rewards, and survive escalating waves and boss encounters in this roguelite tower defense.
- 8
More War: Iron and Arcane
Single-player alternative to Germ Swarm: Evolution & Mutation — playable solo, no multiplayer required. Shares Strategy and Indie with Germ Swarm: Evolution & Mutation.
An incremental war game where technology and magic clash. Gather resources, unlock units and upgrades, and grow from small battles to massive wars.