IMHO.

Single-player games like Soul Machine

Below are 8 single-player Steam games similar to Soul Machine, 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 Soul Machine page.

Ranked picks

  1. 1
    Heroes of Retribution — Steam game cover

    Heroes of Retribution

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

    A rogue-like RPG set in a ruined world. Take on the role of a tank commander. Discover other heroes and factions. Upgrade your tank, acquire new skills, and find forgotten relics in this devastated world. Choose your side, get stronger and become humanity's savior.

    2026ActionIndieRPG21.24 USDSingle-playerSimilar games →
  2. 2
    Lost Among the Stars — Steam game cover

    Lost Among the Stars

    Single-player alternative to Soul Machine — playable solo, no multiplayer required. Shares Action and Strategy with Soul Machine.

    Are you ready to annihilate every, single, entity from the observable universe? I hope so, because you don't have a choice. It's you, or them- Get your battle stations ready, rev the engine and get ready to engage the enemies. Try and stop them.

    ActionStrategyIndieSingle-playerSimilar games →
  3. 3
    Ultimate Panzer — Steam game cover

    Ultimate Panzer

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

    Drive your tank through abandoned and decrepit cities and battle the evil alien machines in this fast-paced and explosive action rogue-like

    ActionIndieSingle-playerSimilar games →
  4. 4
    TerraTech Legion — Steam game cover

    TerraTech Legion

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

    TerraTech Legion, a chaotic Bullet Heaven Builder. Build the ultimate battle vehicle block by block and survive waves of robotic foes, ramming them at speed and shooting infinite projectiles.

    2026Action8.99 USDDeck VerifiedSingle-playerSimilar games →
  5. 5
    Gunbot Diplomacy — Steam game cover

    Gunbot Diplomacy

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

    Splatter slimes, massacre mutants, and assemble your perfect Gunbot! Survive hordes of enemies in this top-down shooter roguelite by customizing your weapons on the unique upgrade grid, and pick from a wide variety of build-defining modules and wacky base bots for a new experience every run.

    2025ActionIndieCasual2.74 USDDeck VerifiedSingle-playerSimilar games →
  6. 6
    Genome Guardian 2 — Steam game cover

    Genome Guardian 2

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

    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 →
  7. 7
    Brigador Killers — Steam game cover

    Brigador Killers

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

    Isometric insurgent simulator. Fight on foot and in vehicles, build and steal a private arsenal and bring the war home to the businessmen who started it all in this continuation of the Brigador saga.

    2026ActionIndieEarly Access22.49 USDDeck PlayableSingle-playerSimilar games →
  8. 8
    Black Ice — Steam game cover

    Black Ice

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

    Hack greedy megacorps to help as many people as you can in a high-agility cyberpunk looter/shooter RPG. Explore neon cyberspace vistas and outmaneuver AIs to customize your hacker OS and weapon combos. Play solo or online co-op with up to 10 people!

    2014ActionIndieRPG19.99 USDSingle-playerSimilar games →