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United Penguin Kingdom is OUT NOW!
Hi everyone, United Penguin Kingdom is now available! Have fun :) https://store.steampowered.com/app/2635350/United_Penguin_Kingdom/
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Oxygen: First Breath
Also known as Oxygen: First Breath, ofb, oxygen first breath
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!
Last update
20 Jun 2026
Players now
4
Latest update
Update history
Browse past updates and patch notes for this game.
15 updates
December 2023
- Hello guys, United Penguin Kingdom: Huddle up is now available on Steam! It's a free version of the full-game United Penguin Kingdom, featuring the first game year. Thank you so much for your support, Have fun :) https:…Store
November 2023
- Hello everyone, Our next game, United Penguin Kingdom, is here! Wishlists and follows are super welcome. About the game: United Penguin Kingdom is a city-building game where you build a penguin settlement and satisfy th…Store
April 2023
- Hello guys, It has been a very long journey for our small dev team, but finally, the full version of Oxygen is ready and available on Steam! Thank you so much for your support, we really hope you will like our newest ga…Store
March 2023
- Hi everyone, We’re happy to announce that Oxygen will be released on April 7th, 2023. Please add Oxygen to your wishlist to get notified when released. Thanks in advance! All the best, TR Games https://store.steampowere…Store
February 2023
- Hi everyone, Thank you so much for your feedback and support. We’ve just released the Oxygen Demo. If you’ve already played Oxygen: First Breath, here are the differences that you can find in this demo version: The demo…Store
January 2023
- v1.69 UpdateHi everyone, Thank you so much for your feedback and support. Here are the new features, improvements, and some fixes: 1) Tree Dome Now you can see which buildings are under the tree dome when you click a tree. If there…
December 2022
- v1.48 Update - RoadsHi everyone, Thank you so much for your feedback and support. Here are the new features, improvements, and some fixes: 1) Roads are implemented. There are 3 types of roads (Dirt Road, Stone Road, and Lighted Road). Dirt…
November 2022
- Hi everyone, Thank you so much for your feedback and support. Here are the new features, improvements, and some fixes: *HUD-Energy Menu has a new look and an extra explanation for the energy storage. [Oxygen Center can…Store
October 2022
- Hi everyone, Thank you so much for your feedback and support. Here are the new features, improvements, and some fixes: *Options>Controls Key-binding has new notifications. You can bind a key by clicking right and then p…Store
September 2022
- Hi everyone, Thank you so much for your efforts on testing our closed-beta. Here is the new features, improvements, and some fixes: *Character Warning widget is implemented. You can see the current status of your settle…Store
August 2022
- v0.94 UpdateHi everyone, Thank you so much for your efforts on testing our closed-beta. Here is the new features, improvements, and some fixes: *New Warning on the Oxygen Center (when there is low energy) [Oxygen Center has low ene…
Gallery
In-game media
Achievements
Community progression
Top picks from 11 Steam achievements, sorted by player unlock rates.
- Tutorial BasicsComplete the basics tutorial46.2%
- 10 DaysSurvive until day 1034.4%
- Tutorial ChallengesComplete the challenges tutorial34.0%
- Tutorial ConfidenceComplete the confidence tutorial29.0%
- WaterStore 300 water28.5%
- Tutorial ExplorationComplete the exploration tutorial26.6%