IMHO.

Single-player games like UFOre: Space Idle

Below are 8 single-player Steam games similar to UFOre: Space Idle, 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 UFOre: Space Idle page.

Ranked picks

  1. 1
    A Game About Getting Bigger — Steam game cover

    A Game About Getting Bigger

    Single-player alternative to UFOre: Space Idle — playable solo, no multiplayer required. Shares Indie and Casual with UFOre: Space Idle.

    A Game About Getting Bigger is a loot-driven incremental game about feeding a growing black hole. Destroy celestial bodies to make the black hole at the center grow larger and larger.

    2026IndieSimulationCasual2.99 USDSingle-playerSimilar games →
  2. 2
    The Little Stomping Girl — Steam game cover

    The Little Stomping Girl

    Single-player alternative to UFOre: Space Idle — playable solo, no multiplayer required. Shares Strategy and Indie with UFOre: Space Idle.

    Stomp your way underground with a little girl before the match burns out. Build powerful chains through clever equipment placement and skills as you descend ever deeper.

    2026StrategyIndieRPGSingle-playerSimilar games →
  3. 3
    Cosmic Ascent — Steam game cover

    Cosmic Ascent

    Single-player alternative to UFOre: Space Idle — playable solo, no multiplayer required. Shares Strategy and Indie with UFOre: Space Idle.

    Build and expand an orbital station in this idle/incremental space colony sim. Manage crew, resources, refinery chains, research and ship expeditions as you progress from Earth orbit toward new planets.

    StrategyIndieSimulationSingle-playerSimilar games →
  4. 4
    Infinite Ruins — Steam game cover

    Infinite Ruins

    Single-player alternative to UFOre: Space Idle — playable solo, no multiplayer required. Shares Strategy and Indie with UFOre: Space Idle.

    An incremental mining game where you manage golems, destroy blocks, unlock upgrades, and descend infinitely in search of ever more valuable resources.

    2026StrategyIndieCasual5.99 USDDeck PlayableSingle-playerSimilar games →
  5. 5
    UNHUMAN — Steam game cover

    UNHUMAN

    Single-player alternative to UFOre: Space Idle — playable solo, no multiplayer required. Shares Indie with UFOre: Space Idle.

    UNHUMAN is a 2D idle extraction shooter set in a cyberpunk dystopia. Raid hostile zones, loot valuable gear, fight enemies before extraction, and craft powerful weapons. Progress through a deep skill tree, install augments, and transcend humanity. Start as a scavenger. Become UNHUMAN.

    2026ActionIndie3.99 USDDeck PlayableSingle-playerSimilar games →
  6. 6
    Space industrial empire — Steam game cover

    Space industrial empire

    Single-player alternative to UFOre: Space Idle — playable solo, no multiplayer required. Shares Strategy and Indie with UFOre: Space Idle.

    This is a idle game modeled on industrial building gameplay. It will be three-dimensional, complex industrial assembly line, easy, simple plane conveyor belt. At the same time to join the battleship assembly, space campaign, character development, giant construction, trade orders and other gameplay!

    2024StrategyIndieCasual5.99 USDDeck PlayableSingle-playerSimilar games →
  7. 7
    Fidget Spinner RPG — Steam game cover

    Fidget Spinner RPG

    Single-player alternative to UFOre: Space Idle — playable solo, no multiplayer required. Shares Indie and Casual with UFOre: Space Idle.

    Fidget Spinner RPG is a clicker/incremental RPG game in which you craft items and level up abilities to make a fidget spinner spin at absurd, ever increasing speeds.

    2023IndieSimulationRPG3.99 USDDeck PlayableSingle-playerSimilar games →
  8. 8
    Rocky Idle — Steam game cover

    Rocky Idle

    Single-player alternative to UFOre: Space Idle — playable solo, no multiplayer required. Shares Indie and Casual with UFOre: Space Idle.

    Rocky Idle is a single-player idle/incremental game. Level up your skills, gather resources, and complete your collection log.

    2026IndieRPGCasual9.99 USDDeck PlayableSingle-playerSimilar games →