Games like Oxygen on Steam

For those who prefer not to search, lists of the most played, top deals and best free games like Oxygen are available at the bottom of the page.

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Jurassic World Evolution 2 Jurassic World Evolution 2 is the much-anticipated sequel to Frontier’s highly successful Jurassic World Evolution. This bold new era in the Jurassic World Evolution game franchise builds upon the ground-breaking and immersive 2018 management simulation.

Similarity 51%
Price -89% 6.67€
Rating 8.8
Release 09 Nov 2021
Unholy Heights Welcome to Unholy Heights, a mashup of Tower Defense and Apartment Management Simulation!

Similarity 51%
Price -88% 0.48€
Rating 8.5
Release 04 Oct 2013
GRIDROAD GridRoad is a traffic optimisation puzzle/simulation game. Build roads, place roadsigns and tweak traffic lights to build the most efficient traffic junction!

Similarity 50%
Price -50% 4.75€
Rating 7.9
Release 09 Dec 2024
Blackthorn Arena: Reforged Re-experience the thrill and challenges of managing a Gladiator arena in this management/simulation game. With new content, new graphics, Quality of Life updates, and all DLCs packed into this new experience, this is how Blackthorn Arena was meant to be experienced.

Similarity 50%
Price -67% 8.14€
Rating 6.6
Release 02 Nov 2024
Primitive Society Simulator In this game, you'll be the leader of an ancient tribe, guiding your people to explore the natural world, to hunt, and to farm. As culture and civilization prosper, you shall establish a tribal alliance, a community with a shared future of tribes.

Similarity 50%
Price -20% 14.79€
Rating 8.0
Release 26 Feb 2024
Rogue AI Simulator Play as a Rogue Artificial Intelligence, in the sequel to the hit Flash game "I'm an Insane Rogue AI", played more than 4 million times! Your Prime Directive is simple: design a facility & manage human Test Subjects for the Dept of Science. But be careful: they NEVER stop being suspicious of you...

Similarity 50%
Price -81% 2.35€
Rating 7.7
Release 11 Jan 2023
Diplomacy is Not an Option Diplomacy is Not an Option is a strategy game set in a medieval fantasy world. Build your town and defenses, raise huge armies and fight against massive hordes of enemies. How long can you survive?

Similarity 50%
Price -97% 0.96€
Rating 8.3
Release 04 Oct 2024
Stronghold Crusader 2 Stronghold Crusader 2 is the long awaited sequel to the original castle sim. After 12 years Stronghold returns to the desert with a new 3D engine and powerful Havok Physics. Crusader 2 recaptures the original game’s addictive, fast-paced gameplay and authentic castle simulation.

Similarity 50%
Price -98% 0.78€
Rating 7.1
Release 22 Sep 2014
Majesty Gold HD The High Definition edition of Majesty Gold contains main game, the Northern Expansion Pack as well as 2 new quests and several other graphics and gameplay updates.Majesty is a Real-time strategy game with indirect control – your heroes have a will of their own!

Similarity 50%
Price -75% 2.49€
Rating 8.7
Release 04 Sep 2009
Dice Legacy Dice Legacy is a dice-based survival city builder set on a mysterious ringworld. Your ship has reached the shore of an uncharted continent. Roll and use your dice to gather resources, expand and defend your settlement, survive the winter and interact with the strange inhabitants of this eerie world.

Similarity 50%
Price -86% 2.22€
Rating 6.7
Release 09 Sep 2021
Age of Empires II: Definitive Edition 42 Civilizations, 229 Campaign Missions, Singleplayer, Co-Op, Multiplayer, In-Game Editor, Mods, Cross-play...It is good to be the king.

Similarity 50%
Price -71% 9.78€
Rating 9.4
Release 14 Nov 2019
Border Pioneer As the kingdom's most promising pioneer, embark on a legendary journey to tame the frontier! Build thriving towns across various landscapes, fending off waves of diverse enemies until you establish a firm foothold and have explored everything the eye can see!

Similarity 50%
Price -74% 3.92€
Rating 8.4
Release 06 Feb 2025
SimAirport Build & Manage Your Airport. An International Hub or a Regional Masterpiece -- it's up to you. Buy more land to scale out, or escalators to scale up with MULTIPLE FLOORS. You're in full control in this modern business management tycoon!

Similarity 50%
Price -2% 24.04€
Rating 7.7
Release 28 Feb 2020
Stardeus Stardeus is a deep colony sim set on a broken starship manned by drones and hibernating human survivors. As the AI, have your drones repair your ship, save your crew and travel the stars in this beautiful simulation.

Similarity 50%
Price -50% 14.99€
Rating 8.4
Release 12 Oct 2022
News Tower Develop your newspaper and become New York’s new media mogul! In this tycoon, build and manage your newspaper from printer to toilet. Create your editorial line and lead your journalists through unique 1930's stories and dig out the latest scoops!

Similarity 50%
Price -25% 14.99€
Rating 9.2
Release 13 Feb 2024
Dungeons 3 At last, the Dungeon Lord has successfully united the forces of evil and established his dark empire. Time for the next step in his most diabolical quest: expansion!

Similarity 50%
Price -97% 0.93€
Rating 9.2
Release 13 Oct 2017
Townsmen VR Townsmen VR uses the exciting possibilities of virtual reality to further enhance the classic city building game with entirely new gameplay experiences and interactive mechanics. It combines elements of a God-game simulation and a classic building game with the interactive possibilities of VR.

Similarity 50%
Price -67% 13.52€
Rating 7.9
Release 24 Mar 2022
Guardians of the Sanctree You and allies, avian inhabitants of Sanctree City, build structures and production lines on the tree, crafting weapons to fend off subterranean insects. Defense is just the start—dig deeper, destroy nests, fortify new defenses against escalating threats for an impregnable stronghold.

Similarity 50%
Price -52% 9.52€
Rating 7.2
Release 03 Oct 2024
Astro Colony Explore endless Universe and create the most efficient constellation of colonies. Build conveyor systems to automate production. Take care of Astronauts and their needs! Establish new colonies as part of intergalactic simulation.

Similarity 49%
Price -43% 11.16€
Rating 7.9
Release 07 Nov 2022
Mad Games Tycoon 2 Start your own game development studio in 1976. Build your own offices, production facilities and server rooms. Develop the games of your dreams and produce the next next-gen console. Rise from a small garage company to a huge corporation.

Similarity 49%
Price -56% 9.38€
Rating 9.1
Release 31 May 2023
Stronghold: Warlords Besiege Great Khans, Imperial warlords and Shōgun commanders in Stronghold: Warlords, the latest 'castle sim' from Firefly Studios. Command AI warlords across the battlefield as you build a castle economy and new gunpowder-fuelled siege engines!

Similarity 49%
Price -84% 5.78€
Rating 6.4
Release 09 Mar 2021
March of the Eagles “he Who Fears Being Conquered Is Sure Of Defeat.”The war-game March of the Eagles focuses on the dramatic conflicts of Europe during 1805 to 1820. Explore one of the defining periods in European history with this experience crafted by the masters of Grand Strategy, Paradox Development Studio.

Similarity 49%
Price -89% 2.29€
Rating 6.5
Release 18 Feb 2013
Deisim Live the experience of being a powerful god and create the world to see the growth of mankind.

Similarity 49%
Price -50% 7.49€
Rating 8.7
Release 01 Sep 2022
Tribe: Primitive Builder Chill out as you explore the beautiful, realistic island of exiles. Gather resources, craft tools, construct buildings and settlements. Manage tribe and automate your gameplay. Discover 4 lands, a storyline and save the inhabitants of the island.

Similarity 49%
Price -67% 6.70€
Rating 7.7
Release 12 Oct 2023

Most played games like Oxygen on Steam

Take a look at the top games like Oxygen that are currently attracting the largest player bases on the Steam platform, as of June 16th 2025.

1. RimWorld

Similarity 77% A sci-fi colony sim driven by an intelligent AI storyteller. Generates stories by simulating psychology, ecology, gunplay, melee combat, climate, biomes, diplomacy, interpersonal relationships, art, medicine, trade, and more. RimWorld is a colony sim, base-building and survival game developed and published by Ludeon Studios. Released on October 17th 2018 has received 210,517 reviews of which 206,216 were positive and 4,301 were negative resulting in an impressive rating of 9.7 out of 10. The game has hit the top spot as the #1 most played game like Oxygen, thanks to its 19,211 peak concurrent players over the last day.
9.7
206,216
4,301

19,211
players

2. Factorio

Similarity 57% Factorio is a game about building and creating automated factories to produce items of increasing complexity, within an infinite 2D world. Use your imagination to design your factory, combine simple elements into ingenious structures, and finally protect it from the creatures who don't really like you. Factorio is a automation, base-building and resource management game developed and published by Wube Software LTD.. Released on August 14th 2020 has received 215,209 reviews of which 208,770 were positive and 6,439 were negative resulting in an impressive rating of 9.6 out of 10. While seeing 16,426 players online at once in the last 24 hours, this game is currently ranked #2 among games like Oxygen based on player count.
9.6
208,770
6,439

16,426
players

3. Age of Empires II: Definitive Edition

Similarity 50% 42 Civilizations, 229 Campaign Missions, Singleplayer, Co-Op, Multiplayer, In-Game Editor, Mods, Cross-play...It is good to be the king. Age of Empires II: Definitive Edition is a strategy, rts and city builder game developed by Forgotten Empires, Tantalus Media, Wicked Witch, World's Edge and CaptureAge and published by Xbox Game Studios. Released on November 14th 2019 has received 162,462 reviews of which 154,061 were positive and 8,401 were negative resulting in an impressive rating of 9.4 out of 10. While seeing 13,465 players online at once in the last 24 hours, this game is currently ranked #3 among games like Oxygen based on player count.
9.4
154,061
8,401

13,465
players

4. Cities: Skylines

Similarity 63% Cities: Skylines is a modern take on the classic city simulation. The game introduces new game play elements to realize the thrill and hardships of creating and maintaining a real city whilst expanding on some well-established tropes of the city building experience. Cities: Skylines is a city builder, simulation and building game developed by Colossal Order Ltd. and published by Paradox Interactive. Released on March 10th 2015 has received 275,770 reviews of which 256,362 were positive and 19,408 were negative resulting in an impressive rating of 9.2 out of 10. With 8,842 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like Oxygen.
9.2
256,362
19,408

8,842
players

5. Oxygen Not Included

Similarity 68% Oxygen Not Included is a space-colony simulation game. Deep inside an alien space rock your industrious crew will need to master science, overcome strange new lifeforms, and harness incredible space tech to survive, and possibly, thrive. Oxygen Not Included is a colony sim, base-building and survival game developed and published by Klei Entertainment. Released on July 30th 2019 has received 128,390 reviews of which 124,220 were positive and 4,170 were negative resulting in an impressive rating of 9.5 out of 10. With 7,545 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like Oxygen.
9.5
124,220
4,170

7,545
players

6. Kenshi

Similarity 52% A free-roaming squad based RPG. Focusing on open-ended sandbox gameplay features rather than a linear story. Be a trader, a thief, a rebel, a warlord, an adventurer, a farmer, a slave, or just food for the cannibals. Train your men up from puny victims to master warriors. Kenshi is a open world, sandbox and rpg game developed and published by Lo-Fi Games. Released on December 06th 2018 has received 98,135 reviews of which 93,712 were positive and 4,423 were negative resulting in an impressive rating of 9.4 out of 10. With 5,412 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like Oxygen.
9.4
93,712
4,423

5,412
players

7. Captain of Industry

Similarity 64% Land your crew of survivors on an abandoned island and survive! Mine raw materials, grow food, build factories, manufacture products, research new tech, and trade with others. Become an industrial superpower! But this is no easy task, you will be put to the test to keep your settlement alive. Captain of Industry is a base-building, automation and resource management game developed and published by MaFi Games. Released on May 31st 2022 has received 7,154 reviews of which 6,737 were positive and 417 were negative resulting in an impressive rating of 9.1 out of 10. With 4,404 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like Oxygen.
9.1
6,737
417

4,404
players

8. Timberborn

Similarity 47% Humans are long gone. In a world struck by droughts and toxic waste, will your lumberpunk beavers do any better? A city-building game featuring ingenious animals, vertical architecture, water physics, and terraforming. Contains high amounts of wood. Timberborn is a city builder, voxel and colony sim game developed and published by Mechanistry. Released on September 15th 2021 has received 31,678 reviews of which 30,266 were positive and 1,412 were negative resulting in an impressive rating of 9.4 out of 10. With 3,884 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like Oxygen.
9.4
30,266
1,412

3,884
players

9. Transport Fever 2

Similarity 54% The classic transport simulation genre has a new gold standard with Transport Fever 2. Discover a whole new world by navigating transport routes through land, water and air. May progress and prosperity find their way! Transport Fever 2 is a simulation, strategy and management game developed by Urban Games and published by Good Shepherd Entertainment. Released on December 11th 2019 has received 27,627 reviews of which 24,960 were positive and 2,667 were negative resulting in a rating of 8.9 out of 10. With 3,465 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like Oxygen.
8.9
24,960
2,667

3,465
players

10. Age of Empires III: Definitive Edition

Similarity 48% Age of Empires III: Definitive Edition offers players a trial of this historical single & multiplayer RTS experience. *Note: To unlock all features of the game please see the “Base Game” product. Age of Empires III: Definitive Edition is a strategy, base-building and rts game developed by World's Edge, Tantalus Media and Forgotten Empires and published by Xbox Game Studios. Released on October 15th 2020 has received 48,342 reviews of which 40,941 were positive and 7,401 were negative resulting in a rating of 8.3 out of 10. With 3,016 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like Oxygen.
8.3
40,941
7,401

3,016
players

Best deals on games like Oxygen on Steam

Discover fantastic savings with the best discounts on a variety of games like Oxygen available on Steam right now, updated on June 16th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like Oxygen.

1. Founders' Fortune

Similarity 87% 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. Founders' Fortune is a colony sim, base-building and city builder game developed and published by Dionic Software. Released on December 18th 2020 has received 2,114 reviews of which 1,699 were positive and 415 were negative resulting in a rating of 7.7 out of 10. Featuring a massive 99% discount, this game currently holds the #1 spot in the best deals for games like Oxygen.
7.7
1,699
415

-99% 18.99€ 0.29€

2. Honey, I Joined a Cult

Similarity 61% It's time to start working towards that ultimate goal of enlightenment, faith and money…lots and lots of money! Become the ultimate tycoon - create, customise, and manage your own cult whilst listening to funky music. Welcome to Honey, I Joined a Cult! Honey, I Joined a Cult is a simulation, base-building and resource management game developed by Sole Survivor Games and published by Team17. Released on November 03rd 2022 has received 1,732 reviews of which 1,279 were positive and 453 were negative resulting in a rating of 7.1 out of 10. Thanks to its incredible 99% discount, this game is now the #2 best deal in games like Oxygen.
7.1
1,279
453

-99% 21.99€ 0.40€

3. Aven Colony

Similarity 71% Build a new home for humanity in Aven Colony. Discover Aven Prime - an alien planet of deserts, tundras, and wetlands light years from earth. Build your colonies into massive, sprawling cities whilst dealing with the challenges faced when settling on a new world. Aven Colony is a colony sim, city builder and strategy game developed by Mothership Entertainment LLC and published by Team17 Digital Ltd. Released on July 25th 2017 has received 2,638 reviews of which 1,921 were positive and 717 were negative resulting in a rating of 7.1 out of 10. Thanks to its incredible 99% discount, this game is now the #3 best deal in games like Oxygen.
7.1
1,921
717

-99% 29.99€ 0.47€

4. Lords and Villeins

Similarity 59% Build a prosperous settlement in a unique simulation of a feudal economy - each family runs their shop, owns their goods, and trades with other villagers in a free market. You will manage the land, build houses, organise events, set taxes, and balance supply and demand while engaging in diplomacy! Lords and Villeins is a colony sim, strategy and city builder game developed by Honestly Games and published by Fulqrum Publishing. Released on November 10th 2022 has received 872 reviews of which 633 were positive and 239 were negative resulting in a rating of 7.0 out of 10. Currently offered at a significant 99% discount, this title has earned the #4 position in the best deals for games like Oxygen.
7.0
633
239

-99% 24.99€ 0.38€

5. Havendock

Similarity 60% Breathe easy and thrive in this cozy colony sim. Build a haven for castaways, manage resources, live your best life on the ocean. Lead your humble settlement into a high-tech society. Havendock is a singleplayer, strategy and city builder game developed by YYZ Studio and published by IndieArk and Pretty Soon. Released on April 22nd 2025 has received 1,399 reviews of which 1,191 were positive and 208 were negative resulting in a rating of 8.1 out of 10. Currently offered at a significant 98% discount, this title has earned the #5 position in the best deals for games like Oxygen.
8.1
1,191
208

-98% 19.50€ 0.42€

6. Help Will Come Tomorrow

Similarity 49% In an uninhabitable Siberian wilderness, in a wake of October Revolution, a group of passengers survives the mysterious catastrophe of Trans-Siberian railway train. They must endure in a harsh ice-clad climate until rescue arrives. Facing many dangers, their own weaknesses and, their own prejudice. Help Will Come Tomorrow is a survival, adventure and resource management game developed by Arclight Creations and published by Klabater. Released on April 21st 2020 has received 893 reviews of which 714 were positive and 179 were negative resulting in a rating of 7.6 out of 10. Currently offered at a significant 98% discount, this title has earned the #6 position in the best deals for games like Oxygen.
7.6
714
179

-98% 19.99€ 0.46€

7. Autonauts vs Piratebots

Similarity 55% Create, automate and defend an impenetrable base. Assemble and command a Bot army to combat an entire Piratebot invasion. Build, program and battle your way through five different zones. Autonauts vs Piratebots is a simulation, strategy and automation game developed by Denki and published by Curve Games. Released on July 28th 2022 has received 485 reviews of which 382 were positive and 103 were negative resulting in a rating of 7.4 out of 10. Currently offered at a significant 98% discount, this title has earned the #7 position in the best deals for games like Oxygen.
7.4
382
103

-98% 19.99€ 0.43€

8. Rise of Industry

Similarity 64% Put your entrepreneurial skills to the test in the first title in the ROI series as you create & optimise intricate production lines. As an early 20th-Century industrialist, grow your empire & adapt to an ever-changing business landscape with unexpected events that could lead to boom…or bust. Rise of Industry is a management, strategy and economy game developed by Dapper Penguin Studios and published by Kasedo Games. Released on May 02nd 2019 has received 4,100 reviews of which 3,001 were positive and 1,099 were negative resulting in a rating of 7.1 out of 10. Currently offered at a significant 98% discount, this title has earned the #8 position in the best deals for games like Oxygen.
7.1
3,001
1,099

-98% 28.99€ 0.62€

9. Stronghold Crusader 2

Similarity 50% Stronghold Crusader 2 is the long awaited sequel to the original castle sim. After 12 years Stronghold returns to the desert with a new 3D engine and powerful Havok Physics. Crusader 2 recaptures the original game’s addictive, fast-paced gameplay and authentic castle simulation. Stronghold Crusader 2 is a strategy, medieval and city builder game developed and published by FireFly Studios. Released on September 22nd 2014 has received 17,082 reviews of which 12,328 were positive and 4,754 were negative resulting in a rating of 7.1 out of 10. Currently offered at a significant 98% discount, this title has earned the #9 position in the best deals for games like Oxygen.
7.1
12,328
4,754

-98% 29.99€ 0.78€

10. As Far As The Eye

Similarity 61% Build a mobile village and travel with your tribe toward the center of the world, called The Eye. This roguelike turn-based resource-management game is made of procedural situations, natural events, skill-trees and hard choices. Ready to move? As Far As The Eye is a strategy, building and colony sim game developed by Unexpected and published by Unexpected, Goblinz Publishing and Maple Whispering Limited. Released on September 10th 2020 has received 2,080 reviews of which 1,505 were positive and 575 were negative resulting in a rating of 7.0 out of 10. Currently offered at a significant 98% discount, this title has earned the #10 position in the best deals for games like Oxygen.
7.0
1,505
575

-98% 20.99€ 0.47€

Free games like Oxygen on Steam

Check out this fantastic list of free-to-play games like Oxygen you can enjoy on Steam right now, updated on June 16th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play games like Oxygen.

1. Age of Empires III: Definitive Edition

Similarity 48% Age of Empires III: Definitive Edition offers players a trial of this historical single & multiplayer RTS experience. *Note: To unlock all features of the game please see the “Base Game” product. Age of Empires III: Definitive Edition is a strategy, base-building and rts game developed by World's Edge, Tantalus Media and Forgotten Empires and published by Xbox Game Studios. Released on October 15th 2020 has received 48,342 reviews of which 40,941 were positive and 7,401 were negative resulting in a rating of 8.3 out of 10. With 3,016 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like Oxygen.
8.3
40,941
7,401

3,016
players

2. Fallout Shelter

Similarity 49% Fallout Shelter puts you in control of a state-of-the-art underground Vault from Vault-Tec. Build the perfect Vault, keep your Dwellers happy, and protect them from the dangers of the Wasteland. Fallout Shelter is a free to play, base-building and survival game developed by Bethesda Game Studios and published by Bethesda Softworks. Released on March 29th 2017 has received 74,448 reviews of which 65,847 were positive and 8,601 were negative resulting in a rating of 8.7 out of 10. Thanks to its free to play tag and a daily player base of 1,001, this game has secured the #2 spot in the ranking of free games like Oxygen.
8.7
65,847
8,601

1,001
players

3. Global City

Similarity 56% Become the mayor and build the city of your dreams! In this game, anything is possible. Whatever you can imagine in a city-building and development simulator, you can do. Start from the very beginning and unlock new possibilities for developing your city in Global City! Global City is a city builder, strategy and building game developed by Red Brix Wall and published by MY.GAMES. Released on November 30th 2021 has received 1,200 reviews of which 841 were positive and 359 were negative resulting in a rating of 6.8 out of 10. Thanks to its free to play tag and a daily player base of 168, this game has secured the #3 spot in the ranking of free games like Oxygen.
6.8
841
359

168
players

4. Kingdom: Classic

Similarity 53% Kingdom is a 2D sidescrolling strategy/resource management hybrid with a minimalist feel wrapped in a beautiful, modern pixel art aesthetic. Kingdom: Classic is a free to play, strategy and singleplayer game developed by Noio and Licorice and published by Raw Fury. Released on October 21st 2015 has received 22,088 reviews of which 20,023 were positive and 2,065 were negative resulting in a rating of 8.9 out of 10. The game currently holds the #4 spot among the most played free games like Oxygen.
8.9
20,023
2,065

40
players

5. Simutrans

Similarity 49% Simutrans is a freeware and open-source transportation simulator. Your goal is to establish a successful transport company. Transport passengers, mail and goods by rail, road, ship, and even air. Interconnect districts, cities, public buildings, industries and tourist attractions. Simutrans is a simulation, free to play and trains game developed and published by The Simutrans Team. Released on May 24th 2016 has received 622 reviews of which 468 were positive and 154 were negative resulting in a rating of 7.2 out of 10. The game currently holds the #5 spot among the most played free games like Oxygen.
7.2
468
154

31
players

6. Oxygen: First Breath

Similarity 89% 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! Oxygen: First Breath is a strategy, base-building and city builder game developed by Turquoise Revival Games and published by GrabTheGames and UpgradePoint. Released on October 07th 2022 has received 1,594 reviews of which 1,432 were positive and 162 were negative resulting in a rating of 8.6 out of 10. The game currently holds the #6 spot among the most played free games like Oxygen.
8.6
1,432
162

7
players

7. Beecarbonize

Similarity 49% Do you have what it takes to save the planet? Beecarbonize is an environmental card strategy game with climate change as your opponent. Beecarbonize is a strategy, resource management and card game game developed and published by Charles Games. Released on August 01st 2023 has received 1,988 reviews of which 1,858 were positive and 130 were negative resulting in a rating of 8.9 out of 10. The game currently holds the #7 spot among the most played free games like Oxygen.
8.9
1,858
130

5
players

8. Vectorio Classic

Similarity 50% The original, uncompleted version of Vectorio. Claim resources, unlock new buildings, and expand your defenses as you fight back against enemy forces in the classic edition of Vectorio! Play for free now. Vectorio Classic is a base-building, tower defense and survival game developed by Ben Nichols and published by BN Games. Released on March 22nd 2021 has received 1,468 reviews of which 1,371 were positive and 97 were negative resulting in a rating of 8.9 out of 10. The game currently holds the #8 spot among the most played free games like Oxygen.
8.9
1,371
97

4
players

9. Terra Firma

Similarity 51% Play god and create your own world in this complex simulation. Plate tectonics, wind and water erosion and plant life all develop and interact to produce a world that is viewable from a single tree to kilometres across. Terra Firma is a simulation, strategy and god game game developed and published by Working as Intended. Released on February 20th 2025 has received 359 reviews of which 333 were positive and 26 were negative resulting in a rating of 8.6 out of 10. The game currently holds the #9 spot among the most played free games like Oxygen.
8.6
333
26

3
players

10. Drill Deal: Borehole (Alpha)

Similarity 50% Drill Deal is a unique simulator in a fun style that will draw you for hours. It's a building simulator like never before. Feel the thrill of a drill hitting underwater oil fields. Sell the precious substance and make your oil rig more efficient. Drill Deal: Borehole (Alpha) is a simulation, management and adventure game developed by A2 Softworks and published by Manager Games S.A. and Red Dev Studio S.A.. Released on August 10th 2020 has received 376 reviews of which 327 were positive and 49 were negative resulting in a rating of 8.1 out of 10. The game currently holds the #10 spot among the most played free games like Oxygen.
8.1
327
49

1
players