Single-player games like Nucleares
Below are 8 single-player Steam games similar to Nucleares, 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 Nucleares page.
Ranked picks
- 1
KAGIDOKO : A Deep Learning Horror Game
Single-player alternative to Nucleares — playable solo, no multiplayer required. Shares Indie and Simulation with Nucleares.
KAGIDOKO is an experimental horror game where every jumpscare has a reason. Collect all keys, open all doors, and get out of that house... While being stalked by a pre-trained Deep Learning Gameplay AI.
- 2
Lunar Odyssey
Single-player alternative to Nucleares — playable solo, no multiplayer required. Shares Simulation with Nucleares.
Don your xEMU Spacesuit, explore the Orontius Crater, and Lunar Module in an immersive first-person VR experience with out of this world accuracy and interaction. Follow real-life procedures, launch the Apollo-era Lunar Module, play Space Golf, and experience the moon like never before.
- 3
Project 13: Taxidermy Trails
Single-player alternative to Nucleares — playable solo, no multiplayer required. Shares Indie and Simulation with Nucleares.
Project 13: Taxidermy Trails, a Walking Simulator set in a mesmerizing Taxidermy Museum. In this immersive experience, you assume the role of an kidnapped Probant forced to find a way to escape. Complete all 13 Walks to get out of this Nightmare.
- 4
Cinema Simulator
Single-player alternative to Nucleares — playable solo, no multiplayer required. Shares Indie and Simulation with Nucleares.
"Cinema Simulator" is a simulation video game, here you can experience watching movies in the cinema! What do you want to see!
- 5
Waterpark Simulator
Single-player alternative to Nucleares — playable solo, no multiplayer required. Shares Simulation with Nucleares.
Your summer replacement
- 6
ATOLL
Single-player alternative to Nucleares — playable solo, no multiplayer required. Shares Indie and Simulation with Nucleares.
The earth has been struck by an extinction level meteor, eliminating most of humanity. Survive by managing resources beneath the ocean surface in a single-person submarine craft. Test your survival skills to see if you can once again reach the ocean surface and uncover the fate of the earth!
- 7
B-Horror: Subway
Single-player alternative to Nucleares — playable solo, no multiplayer required. Shares Indie and Simulation with Nucleares.
B-Horror: Subway is a psychological horror game that puts you in the role of a detective who has to solve the mysterious cases that happen in the city's underground. With the help of your flashlight and notes, you will be able to understand what is going on.
- 8
Ecosystem Architect
Single-player alternative to Nucleares — playable solo, no multiplayer required. Shares Indie and Simulation with Nucleares.
In Ecosystem Architect, build the ecosystem of your dreams and let your imagination run wild. With a vast selection of foliage, animals, and prehistoric creatures, mix-and-match to your heart's content and watch your environment come to life as they interact in an in-depth simulation.