Single-player games like Atom By Atom
Below are 8 single-player Steam games similar to Atom By Atom, 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 Atom By Atom page.
Ranked picks
- 1

Industrial Garbage
Single-player alternative to Atom By Atom — playable solo, no multiplayer required. Shares Simulation and Casual with Atom By Atom.
Industrial Garbage is a game where combination is the key and money is your limit. You will have to manage yourself carefully and ensure that you complete orders in time, or else...
- 2

Clogwork
Single-player alternative to Atom By Atom — playable solo, no multiplayer required. Shares Indie and Simulation with Atom By Atom.
CLOGWORK is a factory-automation game where you turn random pieces into final shapes. Build conveyor belts, glue, cut and rotate parts, wire logic signals, and send the finished shape to the hub to fulfil ever-changing orders.
- 3

Outer Factory
Single-player alternative to Atom By Atom — playable solo, no multiplayer required. Shares Indie and Simulation with Atom By Atom.
Outer Factory is a peaceful, minimalist factory simulation where you build and automate factories across planets and asteroids. Create complex production networks with simplified building mechanics. Become an interplanetary automation expert.
- 4

Industronaut
Single-player alternative to Atom By Atom — playable solo, no multiplayer required. Shares Indie and Simulation with Atom By Atom.
A survival engineering game where you build life support habitats, mine resources, and automate production chains on a radiation heavy planet. No rescue. No support. Just engineering.
- 5

Main Sequence
Single-player alternative to Atom By Atom — playable solo, no multiplayer required. Shares Indie and Simulation with Atom By Atom.
Main Sequence is a first-person space-sim factory builder where you design spaceships, build space stations, and automate everything. Start with a single ship and grow to become an interstellar industrial empire as you leave your mark on the galaxy.
- 6

Stella Astrum
Single-player alternative to Atom By Atom — playable solo, no multiplayer required. Shares Indie and Simulation with Atom By Atom.
Stella Astrum is a whimsical factory game where you manage elemental resources to form Stars, Planets, and more. Use your skills to unlock upgradable factories, nurture colorful celestial bodies, and shape an expansive galaxy. Sit back, relax, and amplify the universe beyond its artistic limits!
- 7

Gobs & Gears
Single-player alternative to Atom By Atom — playable solo, no multiplayer required. Shares Indie and Simulation with Atom By Atom.
The Gob King wants his bomb and he wants it NOW! Scout the Fog, reclaim lost Buildings, run Trundler routes to feed them. Deliver the goods then rip it all up and move on. A scrappy logistics puzzle where nothing is permanent.
- 8

Swarmdustry
Single-player alternative to Atom By Atom — playable solo, no multiplayer required. Shares Indie and Simulation with Atom By Atom.
Build a living factory and automate the Swarm. Harvest resources, construct mega factories, and grow a colony of specialized biomechanical bugs. Balance growth, efficiency, and creep spread before hostile robots squish you for trying to consume their world.