IMHO.

Single-player games like Swarm Harvest

Below are 8 single-player Steam games similar to Swarm Harvest, 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 Swarm Harvest page.

Ranked picks

  1. 1
    Void Swarm — Steam game cover

    Void Swarm

    Single-player alternative to Swarm Harvest — playable solo, no multiplayer required. Shares Action with Swarm Harvest.

    Fight through endless enemy swarms in this fast-paced arcade space shooter with survivor-style progression. Upgrade your ship, unlock powerful fighters, and grow stronger with every run.

    ActionSingle-playerSimilar games →
  2. 2
    SteelFall — Steam game cover

    SteelFall

    Single-player alternative to Swarm Harvest — playable solo, no multiplayer required. Shares Action and Indie with Swarm Harvest.

    Pilot a heavily armed mech against relentless hordes. Fly, blast, and burn your way through swarms, draft powerful items to create game-changing builds, and take down titanic bosses in this fast-paced action roguelite.

    2027ActionIndieCasualSingle-playerSimilar games →
  3. 3
    Gorilla Tag Contagion — Steam game cover

    Gorilla Tag Contagion

    Single-player alternative to Swarm Harvest — playable solo, no multiplayer required. Shares Action with Swarm Harvest.

    Join your fellow Monke to smash, climb, and roll your way through hordes of enemies! Unlock new characters, powerful weapons, endless gadgets, and crazy parkour skills as you fight twisted monstrosities with your unique build. Team up with other Monke in coop and outlast the outbreak, together!

    2027ActionSingle-playerSimilar games →
  4. 4
    PHILSEQUE DIVISION — Steam game cover

    PHILSEQUE DIVISION

    Single-player alternative to Swarm Harvest — playable solo, no multiplayer required. Shares Action and Indie with Swarm Harvest.

    Pilot powerful combat ships in this 3D space action roguelite. Face ever-growing enemy hordes, collect experience, install modules, create devastating builds, and survive intense battles against minibosses and bosses across hostile regions of space.

    2026ActionIndieCasualSingle-playerSimilar games →
  5. 5
    Galactagon — Steam game cover

    Galactagon

    Single-player alternative to Swarm Harvest — playable solo, no multiplayer required. Shares Action with Swarm Harvest.

    Battle through endless cosmic hordes in a galaxy where your choices shape each run. Upgrade and collect a huge variety of weapons and upgrades to create unique builds. Customize the arena itself by adding new areas to it, each new area bringing it's own dangers and rewards.

    ActionSingle-playerSimilar games →
  6. 6
    Iron Frame — Steam game cover

    Iron Frame

    Single-player alternative to Swarm Harvest — playable solo, no multiplayer required. Shares Action and Indie with Swarm Harvest.

    A bullet-heaven roguelite fought in a single ship. Nine frames, each one rewriting a rule of the run rather than its numbers. Ten guns across forty tiers, ten bosses to break, and a hull that visibly grows with every level. Survive long enough and the swarm stops being the problem.

    2026ActionIndieCasualSingle-playerSimilar games →
  7. 7
    Chronoseum — Steam game cover

    Chronoseum

    Single-player alternative to Swarm Harvest — playable solo, no multiplayer required. Shares Action and Indie with Swarm Harvest.

    An action roguelite where you fight through arenas and unlock epic upgrades! Defeat the Bosses and challenge the Emperor. Die, upgrade, die and descend again.

    2026ActionIndieSingle-playerSimilar games →
  8. 8
    Super Robot Survivors — Steam game cover

    Super Robot Survivors

    Single-player alternative to Swarm Harvest — playable solo, no multiplayer required. Shares Action and Indie with Swarm Harvest.

    A Roguelite Bullet-Heaven where you rescue astronauts, repair reactors, and hack terminals while blasting hordes of robots in high-stakes, 10-minute showdowns. From the Creative Director of Destroy All Humans! 2 and co-creator of TY the Tasmanian Tiger.

    ActionIndieAdventureSingle-playerSimilar games →