Single-player games like Oxygen: First Breath
Below are 15 single-player Steam games similar to Oxygen: First Breath, 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 Oxygen: First Breath page.
Ranked picks
- 1
Oxygen
Single-player alternative to Oxygen: First Breath — playable solo, no multiplayer required. Shares Strategy and Indie with Oxygen: First Breath.
Oxygen is a survival city builder. Build your city around the Oxygen Center and ensure your people's survival in a post-apocalyptic future, threatened by crack explosions, deadly winds, droughts and frosts. Lead your people and more importantly keep the Oxygen Center running!
- 2
Frostpunk
Single-player alternative to Oxygen: First Breath — playable solo, no multiplayer required. Shares Strategy and Simulation with Oxygen: First Breath.
Frostpunk is the first society survival game. As the ruler of the last city on Earth, it is your duty to manage both its citizens and infrastructure. What decisions will you make to ensure your society's survival? What will you do when pushed to breaking point? Who will you become in the process?
- 3
Endzone - A World Apart
Single-player alternative to Oxygen: First Breath — playable solo, no multiplayer required. Shares Strategy and Indie with Oxygen: First Breath.
Endzone is a post-apocalyptic survival city builder, where you start a new civilization with a group of people after an ecological disaster. Build them a new home and ensure their survival in a shattered world, threatened by constant radiation, toxic rain, sandstorms and droughts.
- 4
Founders' Fortune
Single-player alternative to Oxygen: First Breath — playable solo, no multiplayer required. Shares Strategy and Indie with Oxygen: First Breath.
A fantasy village builder focusing on creative building, colonist psychology and base defense. Handle resources, farming, production, tools, diplomacy, families, trading, defense, and research, as well as the wishes, expectations, thoughts, and equipment of every villager.
- 5
Judgment: Apocalypse Survival Simulation
Single-player alternative to Oxygen: First Breath — playable solo, no multiplayer required. Shares Strategy and Indie with Oxygen: First Breath.
Build, scavenge, craft, and perform occult rituals to survive in a demon-infested, post-apocalyptic colony simulation. Will you survive Judgment day?
- 6
United Penguin Kingdom: Huddle up
Single-player alternative to Oxygen: First Breath — playable solo, no multiplayer required. Shares Strategy and Indie with Oxygen: First Breath.
This free version of the United Penguin Kingdom covers the content from one year of in-game time. A city-building game where you build a penguin settlement and satisfy the various needs of your penguins while dealing with seals and killer whales.
- 7
Workers & Resources: Soviet Republic
Single-player alternative to Oxygen: First Breath — playable solo, no multiplayer required. Shares Strategy and Simulation with Oxygen: First Breath.
Build a soviet republic from an impoverished country into a rich industrial superpower in a city builder with intricate production chains and a fully simulated global economy. Manage the lives of your citizens from education to work and party loyalty to criminal activity.
- 8
Foundation
Single-player alternative to Oxygen: First Breath — playable solo, no multiplayer required. Shares Strategy and Indie with Oxygen: First Breath.
Foundation is a grid-less, laidback medieval city-building game with a focus on organic development, monument construction and resource management.
- 9
Banished
Single-player alternative to Oxygen: First Breath — playable solo, no multiplayer required. Shares Strategy and Indie with Oxygen: First Breath.
In this city-building strategy game, you control a group of exiled travelers who decide to restart their lives in a new land. They have only the clothes on their backs and a cart filled with supplies from their homeland. The townspeople of Banished are your primary resource.
- 10
United Penguin Kingdom
Single-player alternative to Oxygen: First Breath — playable solo, no multiplayer required. Shares Strategy and Indie with Oxygen: First Breath.
A city-building game where you build a penguin settlement and satisfy the various needs of your penguins while dealing with seals and killer whales. Enjoy the growth of your settlement, become the king, and lead the United Penguin Kingdom.
- 11
Toy Tinker Simulator
Single-player alternative to Oxygen: First Breath — playable solo, no multiplayer required. Shares Indie and Simulation with Oxygen: First Breath.
Have you ever wanted to be a toy tinker? This is a unique chance to become one! Repair toys and start your toy-museums to make everyone happy!
- 12
Smart Factory Tycoon
Single-player alternative to Oxygen: First Breath — playable solo, no multiplayer required. Shares Strategy and Indie with Oxygen: First Breath.
Smart Factory Tycoon inspired by Little Big Workshop is a tycoon management game about running your dream factory with robots. Design your dream factory, plan all steps of production, research new technologies and become a tycoon!
- 13
Animal Rescuer
Single-player alternative to Oxygen: First Breath — playable solo, no multiplayer required. Shares Indie with Oxygen: First Breath.
Animal Rescuer is helping lovely animals through exploring an epic world with faster gameplay and increased quest and combat intensity.
- 14
Toy Tinker Simulator: BETA
Single-player alternative to Oxygen: First Breath — playable solo, no multiplayer required. Shares Indie and Simulation with Oxygen: First Breath.
Have you ever wanted to be a toy tinker? Here you can take the first step to become one! This is a tiny portion of Toy Tinker Simulator, which includes only ten toys.
- 15
Smart Factory Tycoon: Beginnings
Single-player alternative to Oxygen: First Breath — playable solo, no multiplayer required. Shares Strategy and Indie with Oxygen: First Breath.
This is a free version of Smart Factory Tycoon, a game inspired by Little Big Workshop introducing the first productions. Smart Factory Tycoon is a tycoon management game where you design your dream factory with robots, plan all steps of production, research new technologies and become a tycoon!