Single-player games like Scrap Mechanic
Below are 12 single-player Steam games similar to Scrap Mechanic, 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 Scrap Mechanic page.
Ranked picks
- 1
Space Engineers
Single-player alternative to Scrap Mechanic — playable solo, no multiplayer required. Shares Action and Indie with Scrap Mechanic.
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.
- 2
Satisfactory
Single-player alternative to Scrap Mechanic — playable solo, no multiplayer required. Shares Indie and Adventure with Scrap Mechanic.
Satisfactory is a first-person open-world factory building game with a dash of exploration and combat. Play alone or with friends, explore an alien planet, create multi-story factories, and enter conveyor belt heaven!
- 3
Factorio
Single-player alternative to Scrap Mechanic — playable solo, no multiplayer required. Shares Indie and Simulation with Scrap Mechanic.
Factorio is a game about building and creating automated factories to produce items of increasing complexity, within an infinite 2D world. Use your imagination to design your factory, combine simple elements into ingenious structures, and finally protect it from the creatures who don't really like you.
- 4
Kerbal Space Program
Single-player alternative to Scrap Mechanic — playable solo, no multiplayer required. Shares Indie and Simulation with Scrap Mechanic.
In Kerbal Space Program, take charge of the space program for the alien race known as the Kerbals. You have access to an array of parts to assemble fully-functional spacecraft that flies (or doesn’t) based on realistic aerodynamic and orbital physics.
- 5
Stormworks: Build and Rescue
Single-player alternative to Scrap Mechanic — playable solo, no multiplayer required. Shares Simulation with Scrap Mechanic.
Join a world where you design, create and pilot your own air sea rescue service. Release your inner hero as you battle fierce storms out at sea to rescue those in need.
- 6
TerraTech
Single-player alternative to Scrap Mechanic — playable solo, no multiplayer required. Shares Action and Indie with Scrap Mechanic.
TerraTech is an open-world, sandbox adventure game, where you design and build your own creations through a mix of crafting, combat and discovery. Design vehicles from a huge library of blocks. Scavenge, craft and buy new parts to survive and become the ultimate planetary prospector.
- 7
Trailmakers
Single-player alternative to Scrap Mechanic — playable solo, no multiplayer required. Shares Action and Indie with Scrap Mechanic.
Build the ultimate vehicle and explore a vast open world filled with challenges and adventure. Play solo or team up with friends in multiplayer to conquer the toughest obstacles. With a thrilling campaign mode and endless creative possibilities, Trailmakers is the ultimate sandbox for adventurers.
- 8
Teardown
Single-player alternative to Scrap Mechanic — playable solo, no multiplayer required. Shares Action and Indie with Scrap Mechanic.
Prepare the perfect heist in a fully destructible, simulated voxel world. Tear down walls with vehicles or use explosives to create your own shortcuts. Shape the environment to your advantage in the most creative ways you can imagine. Play solo or with up to 12 players in multiplayer.
- 9
Raft
Single-player alternative to Scrap Mechanic — playable solo, no multiplayer required. Shares Indie and Adventure with Scrap Mechanic.
Raft™ throws you and your friends into an epic oceanic adventure! Alone or together, players battle to survive a perilous voyage across a vast sea! Gather debris, scavenge reefs and build your own floating home, but be wary of the man-eating sharks!
- 10
Terraria
Single-player alternative to Scrap Mechanic — playable solo, no multiplayer required. Shares Action and Indie with Scrap Mechanic.
Dig, fight, explore, build! Nothing is impossible in this action-packed adventure game. Four Pack also available!
- 11
RimWorld
Single-player alternative to Scrap Mechanic — playable solo, no multiplayer required. Shares Indie and Simulation with Scrap Mechanic.
A sci-fi colony sim driven by an intelligent AI storyteller. Generates stories by simulating psychology, ecology, gunplay, melee combat, climate, biomes, diplomacy, interpersonal relationships, art, medicine, trade, and more.
- 12
Prison Architect
Single-player alternative to Scrap Mechanic — playable solo, no multiplayer required. Shares Indie and Simulation with Scrap Mechanic.
Only the world’s most ruthless Warden can contain the world’s most ruthless inmates. Design and develop your personalized penitentiary in Prison Architect.