Single-player games like Here Comes The Swarm
Below are 12 single-player Steam games similar to Here Comes The Swarm, 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 Here Comes The Swarm page.
Ranked picks
- 1
Calyx
Single-player alternative to Here Comes The Swarm — playable solo, no multiplayer required. Shares Strategy and Early Access with Here Comes The Swarm.
A strategy game with a new kind of enemy, Calyx puts you in charge of a space mining outpost, locked in battle against powerful plant-aliens. Build your base, gather resources, assemble your forces, and take on the Calyx. With only an out-of-date AI for company, can you survive?
- 2
CastleOn Scriptum
Single-player alternative to Here Comes The Swarm — playable solo, no multiplayer required. Shares Strategy and Simulation with Here Comes The Swarm.
Build a castle and defend it from your enemies! Construct towers, place traps, train and command units in this historical, manuscript-themed mix of Tower Defense and classical Real Time Strategy.
- 3
Corsair Cove
Single-player alternative to Here Comes The Swarm — playable solo, no multiplayer required. Shares Strategy and Simulation with Here Comes The Swarm.
Build a sprawling pirate haven, raise a fleet to explore the high seas, and take on the Crown to keep the Age of Piracy alive! From ale to flintlock pistols, and from scallywags to swashbucklers, you’ll need to manage complex production chains and govern a rowdy crew to reign supreme over the seas!
- 4
Afterglow Fortress
Single-player alternative to Here Comes The Swarm — playable solo, no multiplayer required. Shares Strategy and Indie with Here Comes The Swarm.
A cute hand-drawn 2D medieval RTS game. Gather resources, build your base, develop by day, and defend against monster hordes at night to protect your realm.
- 5
Stranding Echoes
Single-player alternative to Here Comes The Swarm — playable solo, no multiplayer required. Shares Strategy and Simulation with Here Comes The Swarm.
STRANDING ECHOES is a minimalist colony sim. Manage the non-corporeal creatures called echo to build your base and survive the heat.
- 6
Clanfolk
Single-player alternative to Here Comes The Swarm — playable solo, no multiplayer required. Shares Strategy and Simulation with Here Comes The Swarm.
Clanfolk is a colony sim set in the Scottish Highlands. Harness your environment to survive - fish, gather, hunt, and farm as you prepare for the winter. Build an inn, trade with other clans, have children and marry them off - live life and prosper across the generations.
- 7
Stone to Stars
Single-player alternative to Here Comes The Swarm — playable solo, no multiplayer required. Shares Strategy and Indie with Here Comes The Swarm.
Stone to Stars is a colony sim and ruler simulator set at the dawn of civilization. Settle an uncharted continent, build a thriving settlement, discover new technologies, trade or wage war with your neighbors—and hold on to power as you guide your dynasty through the ages.
- 8
They Are Billions
Single-player alternative to Here Comes The Swarm — playable solo, no multiplayer required. Shares Strategy with Here Comes The Swarm.
They Are Billions is a Steampunk strategy game set on a post-apocalyptic planet. Build and defend colonies to survive against the billions of the infected that seek to annihilate the few remaining living humans. Can humanity survive after the zombie apocalypse?
- 9
Slay the Spire
Single-player alternative to Here Comes The Swarm — playable solo, no multiplayer required. Shares Strategy and Indie with Here Comes The Swarm.
We fused card games and roguelikes together to make the best single player deckbuilder we could. Craft a unique deck, encounter bizarre creatures, discover relics of immense power, and Slay the Spire!
- 10
Diplomacy is Not an Option
Single-player alternative to Here Comes The Swarm — playable solo, no multiplayer required. Shares Strategy and Indie with Here Comes The Swarm.
Diplomacy is Not an Option is a strategy game set in a medieval fantasy world. Build your town and defenses, raise huge armies and fight against massive hordes of enemies. How long can you survive?
- 11
From Glory To Goo
Single-player alternative to Here Comes The Swarm — playable solo, no multiplayer required. Shares Strategy and Simulation with Here Comes The Swarm.
From Glory To Goo is a Sci-Fi survival RTS set on an alien world. Serve as humanity's bulwark by establishing a colony and supporting your colonists still in orbit. But beware, for The Goo, a relentless and shape-shifting force approaches from all sides, even above and below.
- 12
Ashes of Darkness
Single-player alternative to Here Comes The Swarm — playable solo, no multiplayer required.
Ashes of Darkness is a 2D Soulslike Action RPG set in a dark medieval world. Master fast-paced combat, defeat powerful enemies, collect rare artifacts, and forge your own build as you grow stronger and challenge deadly bosses.