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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Banished 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.

Similarity 75%
Price -75% 4.87€
Rating 8.9
Release 18 Feb 2014
Dwarf Fortress The deepest, most intricate simulation of a world that's ever been created. The legendary Dwarf Fortress is now on Steam. Build a fortress and try to help your dwarves survive against a deeply generated world.

Similarity 75%
Price 28.99€
Rating 9.3
Release 06 Dec 2022
Prison Architect Only the world’s most ruthless Warden can contain the world’s most ruthless inmates. Design and develop your personalized penitentiary in Prison Architect.

Similarity 75%
Price -96% 1.10€
Rating 8.8
Release 06 Oct 2015
Settlement Survival In this city-building game, you will lead a group of survivors in their search for a new home. Manipulate the landscape, manage limited supplies, plant crops, hunt wildlife, gather resources, and develop trade routes to build a bustling and unique town.

Similarity 75%
Price -50% 8.39€
Rating 8.4
Release 24 Oct 2022
Industries of Titan Create a sprawling industrial city. Compete with other rival corporations on Titan for resources, territory, and power. Seek victory via technology, influence, warfare, or the wealth extracted from your citizens. Stake your claim to the Industries of Titan in this innovative sim/strategy game!

Similarity 75%
Price -50% 14.49€
Rating 6.2
Release 31 Jan 2023
Sumerians Sumerians is a city building game set in ancient Mesopotamia. Attract new citizens and grow by expanding your irrigation system, building walls, palaces, temples and ziggurats. Research new technologies, manage your production, hire workers, and trade.

Similarity 74%
Price 16.49€
Rating 8.1
Release 17 Oct 2023
Stranded: Alien Dawn Brave a new world in Stranded: Alien Dawn, a planet survival sim placing the fate of a small marooned group in your hands. Forge your story through compelling and immersive strategic gameplay as you make vital decisions to protect your survivors.

Similarity 74%
Price -43% 20.00€
Rating 8.3
Release 25 Apr 2023
Paleon Your time machine is broken. And it looks like you are stuck in the past. Try to create your own civilization and return home!

Similarity 74%
Price 8.19€
Rating 7.7
Release 27 Oct 2023
Laysara: Summit Kingdom Build and expand your very own settlements in high mountains! Carefully plan production chains and satisfy various needs of your three-caste society while dealing with mountain hazards such as weather breakdowns and avalanches. Are you skilled enough to make your town thrive?

Similarity 74%
Price 19.50€
Rating 7.9
Release 10 Apr 2024
Gnomoria Gnomoria is a sandbox village management game where you help lead a small group of gnomes, who have set out on their own, to thrive into a bustling kingdom! Anything you see can be broken down and rebuilt elsewhere.

Similarity 73%
Price -43% 7.12€
Rating 7.3
Release 23 Feb 2016
Diluvian Winds Diluvian Winds is a relaxing management game set in a small hamlet at the foot of a lighthouse. Welcome weary travelers and work together to expand your hamlet on land, under the sea, or among the clouds.

Similarity 73%
Price -83% 3.09€
Rating 6.9
Release 25 Apr 2024
Embark Inspired by the deep simulation of Dwarf Fortress, the open world survival of Minecraft, and the social interactions of The Sims. Embark is a colony management game with a focus on complex simulation in a huge living 3D world.

Similarity 73%
Price 24.50€
Rating 6.0
Release 18 Apr 2019
Automation Empire Build and manage a massive industrial network of factories, mines, and farms. Employ a fleet of trains, trucks, and robotic drones. In the age of automation, efficiency is survival!

Similarity 73%
Price 24.99€
Rating 6.5
Release 20 Nov 2019
Darfall Darfall is a hero-based RPG city-building game that puts you in the role of a hero who must protect their home and help it grow! During the day, grow your hero’s might, find epic loot, master new abilities, and fortify your settlement. At night, survive the hordes of undead, until you triumph.

Similarity 72%
Price 24.50€
Rating 7.5
Release 08 May 2025
Imperium Romanum Gold Edition The city builder strategy game Imperium Romanum is set in the time-honoured Roman Empire. As governor of a Roman province, you will devise a strategy to build a well organised, prosperous and commanding settlement. Its fortune very much lies in your own hands.

Similarity 72%
Price -96% 0.47€
Rating 7.9
Release 25 Nov 2008
First Feudal Become a real medieval feudal lord: start with a small village and build it up into an enormous impenetrable castle. You will have to repel enemy raids: hide behind thick walls, lure your enemies into strategically placed traps, and even lead your loyal peasants into battle.

Similarity 72%
Price 18.49€
Rating 7.3
Release 08 Apr 2021
Manor Lords Manor Lords is a medieval strategy game featuring in-depth city building, large-scale tactical battles, and complex economic and social simulations. Rule your lands as a medieval lord – the seasons pass, the weather changes, and cities rise and fall.

Similarity 72%
Price -63% 15.03€
Rating 8.5
Release 26 Apr 2024
Highrise City Highrise City offers a new spin on City Simulations & Tycoon games expanding the economy and resource management aspect. Experience a modern take on the genre enriched with a complex resource based economy system.

Similarity 72%
Price 27.99€
Rating 7.6
Release 04 Sep 2023
Techtonica Techtonica is a first-person factory automation game with a gripping mystery about mining your way out from the depths of an alien planet. Explore bioluminescent caves, mold destructible terrain, construct a massive subterranean factory. Dig your way toward answers & discover the secrets of Calyx.

Similarity 71%
Price 28.99€
Rating 6.6
Release 07 Nov 2024
Aven Colony 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.

Similarity 71%
Price -99% 0.47€
Rating 7.1
Release 25 Jul 2017
Land of the Vikings Land of the Vikings is a survival colony sim game. Build and lead your village, and expand it into a thriving city. A wise Jarl must manage resources, survive harsh conditions, and guide their fellow Vikings to work together through social conflict. Skál!

Similarity 71%
Price -70% 7.49€
Rating 7.3
Release 09 Oct 2023
Hearthlands Hearthlands is a medieval/fantasy city-building real time strategy game in which you take a role of a king in a procedurally generated world. You can not control your subjects directly; instead you focus on city-building, resource management, diplomacy, heroes, magic and other things a typical king deals with on a daily basis.

Similarity 71%
Price 19.50€
Rating 7.7
Release 28 Apr 2017
Frostpunk 2 Develop, expand, and advance your city in a society survival game set 30 years after an apocalyptic blizzard ravaged Earth. In Frostpunk 2, you face not only the perils of never-ending winter, but also the powerful factions that watch your every step inside the Council Hall.

Similarity 71%
Price -61% 17.87€
Rating 7.5
Release 20 Sep 2024
The Last Haven The world after a nuclear war. Manage the settlement, learn technology, make decisions, produce weapons, ammunition, organize defense, raid for supplies on other areas, do not let residents die, survive the nuclear winter.

Similarity 71%
Price -75% 4.19€
Rating 6.0
Release 17 Feb 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€ 0.26€

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€ 0.87€

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 1,194 reviews of which 839 were positive and 355 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 145, this game has secured the #3 spot in the ranking of free games like Oxygen.
6.8
839
355

145
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 1,980 reviews of which 1,850 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
1,850
130

6
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

4
players

10. Terraformers: First Steps on Mars

Similarity 60% Terraformers: First Steps on Mars is a free prologue of Terraformers, featuring an exclusive challenge to lead humanity's first attempt at settling the Red Planet. Terraformers: First Steps on Mars is a strategy, simulation and colony sim game developed by Asteroid Lab and published by Goblinz Publishing and IndieArk. Released on October 23rd 2021 has received 683 reviews of which 610 were positive and 73 were negative resulting in a rating of 8.4 out of 10. The game currently holds the #10 spot among the most played free games like Oxygen.
8.4
610
73

4
players