IMHO.

Single-player games like Mechanical Lab

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

Ranked picks

  1. 1
    ORMOD: Directive — Steam game cover

    ORMOD: Directive

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

    Shape your own survival experience in an infinite open-world sandbox. Customize world difficulty, rules, and playstyle. Play solo, co-op, or on 24/7 MMO-style servers across PvP, PvE, Hardcore, or Creative modes as you build, automate, fight, and survive. The choice is yours.

    2026ActionIndieAdventureSingle-playerSimilar games →
  2. 2
    UNDER the WATER - an ocean survival game — Steam game cover

    UNDER the WATER - an ocean survival game

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

    How long do you survive on a small island in the middle of a flooded world?

    2022ActionIndieAdventure9.99 USDSingle-playerSimilar games →
  3. 3
    Mortal Frame: Reforged in Survival — Steam game cover

    Mortal Frame: Reforged in Survival

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

    "Mortal Frame" is a sci-fi RPG combining open-world exploration and sandbox survival. The player explores a challenging world, gathers resources, crafts gear, captures AI companions, and upgrades modification chips to enhance their abilities, facing powerful foes and uncovering hidden mysteries.

    ActionIndieAdventureSingle-playerSimilar games →
  4. 4
    On the Rocks — Steam game cover

    On the Rocks

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

    Run a bar in a toxic wasteland - scavenge the wasteland, brew what you find, serve who you must. In a world gone to ruin, the last bar standing is yours to run.

    2026ActionIndieAdventureSingle-playerSimilar games →
  5. 5
    Lay of the Land — Steam game cover

    Lay of the Land

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

    Lay of the Land is a sandbox adventure game set in a fantasy world where everything is physically simulated. Use the environment to your advantage and Explore, Fight, Loot and Build your way through mysterious lands.

    2026ActionIndieAdventure19.99 USDSingle-playerSimilar games →
  6. 6
    Permafrost — Steam game cover

    Permafrost

    Single-player alternative to Mechanical Lab — playable solo, no multiplayer required. Shares Action and Simulation with Mechanical Lab.

    Permafrost is a story-driven survival sandbox set in a frozen, post-apocalyptic world. Discover a vast lore-rich open world, alone or in co-op with up to 4 players. Explore, scavenge, craft, and build a network of shelters to outlast the cold.

    2026ActionAdventureSimulationSingle-playerSimilar games →
  7. 7
    Heat Death: Survival Train — Steam game cover

    Heat Death: Survival Train

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

    Heat Death is a sci-fi survival game where you can build, upgrade, and customize your battle train to explore and survive a frozen world! This train is not only your shelter and vehicle, but also your weapon and ally to face hostile drones, deadly storms, and hidden mysteries of an unknown world!

    2024ActionIndieAdventure11.99 USDDeck PlayableSingle-playerSimilar games →
  8. 8
    Space Engineers — Steam game cover

    Space Engineers

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

    Space Engineers is a sandbox engineering game where you design and build ships, stations, and planetary bases in a fully destructible environment. Explore planets and space, mine resources, survive hazards, and engage in combat alone or with friends in Creative or Survival modes.

    2019ActionStrategyIndie9.99 USDSingle-playerSimilar games →
  9. 9
    Infinite Abyss — Steam game cover

    Infinite Abyss

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

    Infinite Abyss is a combination of a dynamic game of action with strategic elements in a stylized 2D world. You will play the role of the last living astronaut to survive on a lonely planet.

    2020ActionStrategyIndie1.99 USDSingle-playerSimilar games →