Oxygen: First Breath
Released Oct 2022
This is a free version of Oxygen, featuring the first 50 game-days. 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 keep the Oxygen Center running!
88% positive · 1,664 reviews
Done
All announced content has been released
High confidence
Done
All announced content has been released
High confidence
Where to get it
Free on Steam
Evaluation
Oxygen: First Breath is a free, limited demo/preview version of the full game Oxygen — it deliberately caps gameplay at 50 in-game days and was designed from the start to funnel players toward the paid full release. The developer, Turquoise Revival Games, shipped the full game Oxygen on April 7, 2023, fulfilling this product's core purpose as a promotional teaser. Following that launch, the developer's attention shifted entirely to their next project, United Penguin Kingdom, which was announced in November 2023, released a free prologue in December 2023, and launched fully in March 2024. There have been no updates to Oxygen: First Breath since January 2023, and no developer communications about this specific product since the full game launched. The last news posts were all promotional announcements for United Penguin Kingdom. Given that this product was always explicitly positioned as a free sample of a larger game — and that larger game has now shipped — Oxygen: First Breath has reached its natural conclusion. No future content, DLC, or updates have been announced or suggested for this free version.
Evidence
Developer announced that the full game Oxygen launched on April 7, 2023, completing the purpose of this free preview version.
The short description explicitly describes this as 'a free version of Oxygen, featuring the first 50 game-days' — a promotional demo for the full paid game.
Media
Details
Developer
Publisher
GrabTheGames
Achievements
11
Platform
Windows
Controller
—
Steam Deck
Not rated
Players
Single-player
About this game
STORY
A natural disaster hit us and brought humanity to the verge of extinction. Only a few survived because of "Large Igneous Provinces", these are volcanoes that don't explode but huge cracks open in the Earth's crust and lava just starts bubbling out, oozing across the landscape, releasing tons of toxic gases. The most dangerous thing about an igneous province is that it can keep up the oozing for centuries. With the wind effect, these gases spread all over the world and changed the atmospheric composition. One of these toxic magmatic gases reduced the oxygen level in the air. Sadly, there’s only little oxygen left in the world. Before it's too late for humanity, the Oxygen Center is invented. It generates oxygen by electrolysis of underground water, and the required electricity is generated by using coal but you should be slowly moving away from coal towards sustainable sources of energy. This is the only hope for us...BUILD, MANAGE, and RESEARCH
The world has changed. Start a new civilization for all survivors around the globe. Fulfill your people's basic needs with a nice living place, steady water and food supplies. Research new features and buildings to increase their confidence and education level.LEAD YOUR PEOPLE
Now it's your time, you’re the leader. Prove your worth as a leader to everyone! Coordinate and assign your people to different workplaces. Let them produce all required materials.OVERCOME THE NATURAL CHALLENGES
Protect your people. Prepare for recurring and intense frosts and droughts, and plan ahead by stocking up water and food. Get ready for deadly winds, and generate the required energy by using coal or make your plan to move away from coal towards sustainable energy resources.EXPLORE
Find all survivors around the globe and let them join your settlement. Detect abandoned areas and then send your team to explore the area and collect anything useful.KEY FEATURES
- Keep the Oxygen Center running and build your own city around it
- Survive in a world of constant threats including deadly winds, crack explosions, frosts and droughts
- Gather or produce many different resources and try to stock all types of food, material, and water
- Lead your people and increase their confidence and education level for better productivity
- Find and warmly welcome every survivor around the globe
- Research and develop to unlock new features and buildings
- Find all abandoned places around your settlement and send your team to collect food and material
- Take care of the dead trees and revive them
Are these done yet?
Last evaluated Jun 21, 2026
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