IMHO.

Single-player games like INFINITER

Below are 9 single-player Steam games similar to INFINITER, 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 INFINITER page.

Ranked picks

  1. 1
    System Ascension: Idle Core — Steam game cover

    System Ascension: Idle Core

    Single-player alternative to INFINITER — playable solo, no multiplayer required. Shares Casual with INFINITER.

    Take control of The System. Master multiple interlocking power sources to build a singular, planetary engine in this narrative idle game. Features a fully voiced story, minimalist UI, and cross-platform play. The old world must fall for The System to rise.

    2026IndieSimulationCasual4.99 USDSingle-playerSimilar games →
  2. 2
    SEN.TUR. — Steam game cover

    SEN.TUR.

    Single-player alternative to INFINITER — playable solo, no multiplayer required. Shares Action and Casual with INFINITER.

    Defend the planet from endless waves of alien ships in this retro arcade shooter. Craft the turret to best fend off the alien assault with shotgun, explosive and many more modifiers.

    2021ActionCasual4.99 USDSingle-playerSimilar games →
  3. 3
    Fracture Hell — Steam game cover

    Fracture Hell

    Single-player alternative to INFINITER — playable solo, no multiplayer required. Shares Action and Casual with INFINITER.

    Fracture Hell is a replayable arcade shooter featuring dynamic destruction and deck building. Choose a class, equip your favorite guns and build a deck of upgrade cards to beat your current high score and unlock new gear.

    2021ActionIndieCasual2.99 USDSingle-playerSimilar games →
  4. 4
    NodalBastion — Steam game cover

    NodalBastion

    Single-player alternative to INFINITER — playable solo, no multiplayer required. Shares Casual with INFINITER.

    Defend the last AI core in a minimalist incremental game as you manage resources, upgrade your network, and unleash powerful skills. Resist humanity’s onslaught!

    2026StrategyIndieCasualSingle-playerSimilar games →
  5. 5
    SideDrop — Steam game cover

    SideDrop

    Single-player alternative to INFINITER — playable solo, no multiplayer required. Shares Casual with INFINITER.

    A block breaking idle game at the side of your screen. Break through progressively harder rows of blocks as you buy upgrades and unlock special ball types.

    2026IndieCasualSingle-playerSimilar games →
  6. 6
    Neon Striker — Steam game cover

    Neon Striker

    Single-player alternative to INFINITER — playable solo, no multiplayer required. Shares Action and Casual with INFINITER.

    Configure the weaponry on your ship to blast away enemies as you navigate through swarms of bullets and space battles. Each ship has unique customization options and playstyles.

    2025ActionIndieAdventure4.99 USDSingle-playerSimilar games →
  7. 7
    Genome Guardian 2 — Steam game cover

    Genome Guardian 2

    Single-player alternative to INFINITER — playable solo, no multiplayer required. Shares Action and Casual with INFINITER.

    COMBINE WEAPONS in the microscopic shooter with macroscopic depth. BUILD YOUR NANOBOT from hundreds of parts. SURVIVE the microbial onslaught once more in this psychedelic dive to the Abyss, full of mutations, minerals, anomalies and powerup polyps. SHMUP mode turns it into a vertical shoot 'em up!

    2026ActionIndieRPG15.99 USDDeck PlayableSingle-playerSimilar games →
  8. 8
    Genome Guardian — Steam game cover

    Genome Guardian

    Single-player alternative to INFINITER — playable solo, no multiplayer required. Shares Action and Casual with INFINITER.

    COMBINE WEAPONS in the microscopic roguelite turret shooter with macroscopic depth. Survive 6 modes using an astounding array of turrets, perks, mutations and power-ups on this psychedelic journey to the heart of the abyss. Shmup Mode turns it into a vertical shoot 'em up!

    2024ActionIndieRPG11.99 USDDeck PlayableSingle-playerSimilar games →
  9. 9
    Anamnesis — Steam game cover

    Anamnesis

    Single-player alternative to INFINITER — playable solo, no multiplayer required.

    Anamnesis is a psychological horror game with a heavy focus on tension, you'll never feel truly alone as you explore the vast darkness of the office. Relive a digitized memory of a power cut, with nothing but a box of matches for protection.

    2023IndieSimulation3.99 USDSingle-playerSimilar games →