Single-player games like Plasma
Below are 18 single-player Steam games similar to Plasma, 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 Plasma page.
Ranked picks
- 1
Main Assembly
Single-player alternative to Plasma — playable solo, no multiplayer required. Shares Simulation with Plasma.
You’re the designer, engineer and architect if you can imagine it you can create it! Construct robots of any shape or size from eight-legged spider bots to eerie UFO contraptions.
- 2
Retro Gadgets
Single-player alternative to Plasma — playable solo, no multiplayer required. Shares Simulation with Plasma.
Retro Gadgets is a sandbox where you build, code, and customize gadgets inspired by old-school electronics.
- 3
Nimbatus - The Space Drone Constructor
Single-player alternative to Plasma — playable solo, no multiplayer required. Shares Indie and Simulation with Plasma.
Command the Nimbatus and craft drones out of hundreds of different parts. Survive unknown threats in a fully destructible, procedural universe, compete against other players in different arenas or enjoy complete creative freedom in the sandbox.
- 4
Virtual Circuit Board
Single-player alternative to Plasma — playable solo, no multiplayer required. Shares Simulation with Plasma.
Virtual Circuit Board is the sandbox drawing-based logic simulator where you can build, program, decorate, and simulate anything from simple monochrome circuits to complex and colorful computers. Play with digital logic in this sandbox-only experience.
- 5
Autonauts
Single-player alternative to Plasma — playable solo, no multiplayer required. Shares Indie and Simulation with Plasma.
In Autonauts you must build, create, and automate. Start by establishing a colony, crafting bots and teaching them via Scratch-style programming to build an ever evolving autonomous paradise of agriculture, industry and enlightenment.
- 6
Logic World
Single-player alternative to Plasma — playable solo, no multiplayer required. Shares Indie and Simulation with Plasma.
Invent a new computer! Logic World is a first-person sandbox simulation game that's all about digital logic. Play alone or with friends, design unique machines, build up layers of complexity, and experience the joy of circuits!
- 7
Craftomation 101: Programming & Craft
Single-player alternative to Plasma — playable solo, no multiplayer required. Shares Indie and Simulation with Plasma.
Program a crew of tiny robots to turn a frozen planet into a living world. Connect visual code blocks, automate crafting, and build a workforce that fuels itself. Keep the heat flowing, refine your machines, and watch your ideas come to life.
- 8
Opus Magnum
Single-player alternative to Plasma — playable solo, no multiplayer required. Shares Indie and Simulation with Plasma.
Opus Magnum is the latest open-ended puzzle game from Zachtronics, the creators of SpaceChem, Infinifactory, and SHENZHEN I/O. Design and build machines that assemble potions, poisons, and more using the alchemical engineer’s most advanced tool: the transmutation engine!
- 9
Poly Bridge
Single-player alternative to Plasma — playable solo, no multiplayer required. Shares Indie and Simulation with Plasma.
Unleash your engineering creativity with an engaging and fresh bridge-building simulator with all the bells and whistles. Enjoy hours of physics-based puzzle solving in the Campaign and then jump in the Sandbox to create your own bridge designs and puzzles!
- 10
Scrap Mechanic
Single-player alternative to Plasma — playable solo, no multiplayer required. Shares Indie and Simulation with Plasma.
Enter the creative paradise of Scrap Mechanic! Build fantastic machines, go on adventures with your friends and defend against waves of evil Farmbots in this imaginative multiplayer survival sandbox. With Scrap Mechanic’s powerful creation tools you can engineer your own adventures!
- 11
Space Engineers
Single-player alternative to Plasma — playable solo, no multiplayer required. Shares Indie and Simulation with Plasma.
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.
- 12
Stormworks: Build and Rescue
Single-player alternative to Plasma — playable solo, no multiplayer required. Shares Simulation with Plasma.
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.
- 13
Kerbal Space Program 2
Single-player alternative to Plasma — playable solo, no multiplayer required. Shares Indie and Simulation with Plasma.
Kerbal Space Program 2 is the sequel to the acclaimed space-flight simulation game Kerbal Space Program. Enter the next generation of space adventure with exciting new parts, stunning visuals, fully revamped UI and Map View, and rich new environments to explore.
- 14
Satisfactory
Single-player alternative to Plasma — playable solo, no multiplayer required. Shares Indie and Simulation with Plasma.
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!
- 15
Poly Bridge 2
Single-player alternative to Plasma — playable solo, no multiplayer required. Shares Indie and Simulation with Plasma.
The acclaimed bridge-building indie-hit is back! More levels, more features, more physics fun!
- 16
Poly Bridge 3
Single-player alternative to Plasma — playable solo, no multiplayer required. Shares Simulation with Plasma.
The best just got better! Rediscover your engineering creativity in this genre-defining bridge engineering and puzzle solving masterpiece.
- 17
Poly Bricks
Single-player alternative to Plasma — playable solo, no multiplayer required. Shares Simulation with Plasma.
A brick-building puzzle game. Assemble sets of increasing complexity, design your own, share with the community.
- 18
Carbonara Crew
Single-player alternative to Plasma — playable solo, no multiplayer required. Shares Indie and Simulation with Plasma.
A first-person cooking sim where you run a tiny Italian restaurant, solo or with friends. Cook every dish right, serve your customers, wash the dishes: the whole restaurant is in your hands. Literally.