Single-player games like AToM - 1974
Below are 9 single-player Steam games similar to AToM - 1974, 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 - 1974 page.
Ranked picks
- 1
Colorgrid
Single-player alternative to AToM - 1974 — playable solo, no multiplayer required.
Colorgrid is a puzzle game about mixing colors in a Lab. Find the correct positions for your lasers and mirrors to get the right mix of colors in each material.
- 2
MEKA SIGURAT
Single-player alternative to AToM - 1974 — playable solo, no multiplayer required. Shares Indie with AToM - 1974.
A hardcore, mechanically deranged wave shooter! Shoot robots to your hearts content! Collect items! Upgrade yourself! Deny any meaning whatsoever!
- 3
First Contact
Single-player alternative to AToM - 1974 — playable solo, no multiplayer required. Shares Indie with AToM - 1974.
Strange radio bursts have been detected! Embark on an immersive adventure as you analyze radio signals coming from space, decipher hidden messages, symbols, sounds, and translate alien languages. Follow an engaging story with countless dialogues and game-changing choices.
- 4
Unstable Nuclear Reactor
Single-player alternative to AToM - 1974 — playable solo, no multiplayer required. Shares Indie with AToM - 1974.
An incremental hex-puzzle roguelite game where you merge atoms into higher elements, trigger massive chain combos, earn radioactive coins, and manage your ring capacity to survive as long as possible.
- 5
LOOPY
Single-player alternative to AToM - 1974 — playable solo, no multiplayer required. Shares Indie with AToM - 1974.
LOOPY is the lab’s daily Slitherlink arena: Outrun neon, nine ranked protocols a day, arcade rules that shift under you, weekly/monthly circuits (Gauntlet, Megaloop, Throne Rush), and a synthwave score locked to every mode. Close the loop. Climb the board. No ads. No IAP.
- 6
Nova Protocol
Single-player alternative to AToM - 1974 — playable solo, no multiplayer required. Shares Indie with AToM - 1974.
A neon bullet heaven at absurd scale. Thousands of wireframe enemies, one auto-firing interceptor, and a grid floor that buckles beneath the swarm. Draft augments, evolve your weapons, and survive a boss every five waves — until the Black Hole arrives at wave thirty, then it's the Finale wave!
- 7
Terraformers
Single-player alternative to AToM - 1974 — playable solo, no multiplayer required.
Terraform Mars in this turn-based colony builder and resource management game with roguelike elements. Explore the planet, develop spectacular cities, spread life and turn the Red Planet into a green one!
- 8
Kerbal Space Program
Single-player alternative to AToM - 1974 — playable solo, no multiplayer required. Shares Indie with AToM - 1974.
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.
- 9
Moonlite - 1975
Single-player alternative to AToM - 1974 — playable solo, no multiplayer required. Shares Indie with AToM - 1974.
Get ready for a cosmic getaway with Moonlite - a lunar looting exploration expedition launching 1975. Grab your trusty shovel & spacesuit and start digging! The current version is Early Access v0.5 - pre-alpha - and includes a single map and game mode called 'Treasure Hunt'.