Single-player games like Retro Machina: Nucleonics
Below are 10 single-player Steam games similar to Retro Machina: Nucleonics, 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 Retro Machina: Nucleonics page.
Ranked picks
- 1

Retro Machina
Single-player alternative to Retro Machina: Nucleonics — playable solo, no multiplayer required. Shares Indie and Adventure with Retro Machina: Nucleonics.
Retro Machina is a single-player action and exploration game set in a retro-futuristic universe. Experience the journey of a little robot as it solves intricate puzzles and begins unraveling the mysteries of a world long forgotten.
- 2

Monolith
Single-player alternative to Retro Machina: Nucleonics — playable solo, no multiplayer required. Shares Indie and Adventure with Retro Machina: Nucleonics.
A classical science fiction point and click adventure which takes you into a deep story and murky atmosphere, while solving logical puzzles. Accompany Tessa Carter and her talking robot as she finds out about herself and searches for a way to survive.
- 3

Megabyte Punch
Single-player alternative to Retro Machina: Nucleonics — playable solo, no multiplayer required. Shares Action and Indie with Retro Machina: Nucleonics.
Megabyte Punch is a fighting/beat ‘em up game in which you build your own fighter! As you travel through different environments, you battle other creatures to get their parts. Parts have their own powers and bonuses, like gun arms for a shoot ability or powerful hips for a devastating pelvic thrust attack.
- 4

The Last Cube
Single-player alternative to Retro Machina: Nucleonics — playable solo, no multiplayer required. Shares Indie and Adventure with Retro Machina: Nucleonics.
Cube puzzler and an epic adventure. Stamp stickers to the sides of your cube to imbue each surface with unique powers, which are vital to solving puzzles and finding secrets.
- 5

Star Fire: Eternal Cycle
Single-player alternative to Retro Machina: Nucleonics — playable solo, no multiplayer required. Shares Action and Indie with Retro Machina: Nucleonics.
Star Fire is a love letter to classic arcade side-scrollers, reimagined with roguelite progression, modern action polish, and that “just one more run” itch. It’s fast, punchy, and all about no-pressure fun with tight combat, slick movement, and endless ways to cause chaos.
- 6

Lithium City
Single-player alternative to Retro Machina: Nucleonics — playable solo, no multiplayer required. Shares Action and Indie with Retro Machina: Nucleonics.
Lithium City is a stylized isometric action game set in a neon-drenched world of electricity and violence.
- 7

The Uncertain: Light At The End
Single-player alternative to Retro Machina: Nucleonics — playable solo, no multiplayer required. Shares Action and Indie with Retro Machina: Nucleonics.
The Uncertain is a story-driven adventure game set in a post-apocalyptic world. Humanity disappeared from the face of the Earth and has been replaced by robots. Together with Emily, one of the survivors, you will have to witness how people try to live in a world ruled by robots.
- 8

Metal Bringer
Single-player alternative to Retro Machina: Nucleonics — playable solo, no multiplayer required. Shares Action and Indie with Retro Machina: Nucleonics.
In this roguelike action-adventure, control humanoid "Labor" and giant "Arms" to uncover the mysteries of the world. Create fully-customizable robots, strengthen them, and take down hordes of enemies!
- 9

Ebenezer and the Invisible World
Single-player alternative to Retro Machina: Nucleonics — playable solo, no multiplayer required. Shares Action and Indie with Retro Machina: Nucleonics.
Embark on a story-rich 2D Metroidvania adventure with breathtaking hand-drawn art, playing as miser-turned-hero Ebenezer Scrooge in a reimagined Victorian-fantasy based on Charles Dickens’ classic novel, A Christmas Carol. Enlist the help of ghosts to save the people of London before it’s too late.
- 10

Haunted House
Single-player alternative to Retro Machina: Nucleonics — playable solo, no multiplayer required. Shares Action and Adventure with Retro Machina: Nucleonics.
Creep, sneak, and dash your way through hordes of ghouls and eerie ectoplasms in this roguelite reimagining of the classic Atari adventure!