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

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.
- 2

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?
- 3

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.
- 4

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.
- 5

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.
- 6

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.
- 7

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!
- 8

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.
- 9

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.