Games like Radiation Island on Steam
For those who prefer not to search, lists of the most played, top deals and best free games like Radiation Island are available at the bottom of the page.
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Xsyon - Prelude
Xsyon is a player driven apocalyptic fantasy sandbox MMORPG, set in a living and evolving environment. Players create the world they want to live in as they form tribes, construct towns, shape landscapes, create quests, hunt, farm, gather, build societies and develop a New World.
Don't Starve
Don’t Starve is an uncompromising wilderness survival game full of science and magic. Enter a strange and unexplored world full of strange creatures, dangers, and surprises. Gather resources to craft items and structures that match your survival style.
Scrapnaut
Scrapnaut is a co-op & singleplayer top-down, base building survival game with steampunk elements. Explore an open world with different biomes, take care of oxygen, manage your farms, generate electricity, build your home and much more!
Captain Bones : A Pirate's Journey
Captain Bones is an action-adventure game set in an open pirate world. You must have survival skills to make ship battles and treasure hunts with your crew.
Daymare: 1998
DAYMARE: 1998 is a third-person survival horror game that recreates the mood of iconic titles from the '90s, with a fresh storyline. An incident that turns a small town into a deadly zone, three characters to play with and little time to find the truth, before its mutated citizens abruptly end your mission.
Delivery from the Pain:Survival / 末日方舟:生存
You'll play as a survivor in a world overrun by zombies. Explore and interact with other survivors, making tough choices about whether to help or exploit them. Defend against zombies, collect resources, craft, and fortify your shelter. Use strategy to escape this world and return to safety.
Contagion VR: Outbreak
Contagion VR: Outbreak will immerse you into the middle of a zombie apocalypse. Relive stories of the survivors in the Single Player campaign, take your time in Free Roam, or check out the Firing Range!
Solace Crafting
Embark on an adventure set in a fantasy survival RPG. Visit a borderless, open world where you manage resources to construct your base and new types of equipment to support your conquest.
Satisfactory
Satisfactory is a first-person open-world factory building game with a dash of exploration and combat. Play alone or with friends, explore an alien planet, create multi-story factories, and enter conveyor belt heaven!
Crashlands
Fight and tame alien beasts, craft resources into menacing weaponry, befriend the outlandish locals, and go toe-to-chin with a world-domineering maniac.
Wurm Unlimited
Wurm Unlimited is the standalone version of the fantasy sandbox world Wurm Online, the MMORPG where the players are in charge! A pioneer in the ideas of player influence, crafting and adventure, it is now one of the most deep and feature packed true sandbox experiences available.
ASTRONEER
Interact with strange new worlds in a unique and tactile way, molding the environment itself as if it were clay in your hands. Build your base, master resource management, automate your production lines, and more as you unravel the mysteries of the universe, alone or with friends.
Creativerse
A sandbox adventure game as big as your imagination.
DreadOut
DreadOut is a third person supernatural horror game where you play as Linda, a high school student trapped in an old abandoned town. Equipped with her trusty smart-phone, she will battle against terrifying encounters and solve mysterious puzzles which will ultimately determine her fate.
FortressCraft Evolved!
FortressCraft Evolved is a unique blend of Voxel Landscapes, Tower Defense, Crafting, Logistics, Exploration, Combat and Assembly lines. Players begin by crash-landing on a strange alien world, left with only a small handful of starting machines.
Castle Story
Castle Story is a creative voxel-based strategy game in which you can build castles one brick at a time using an army of little creatures called Bricktrons. Design and build your own castles, expand your territory in a vast landscape and defend your Bricktrons against onslaughts of hostile creatures.
DRAGON QUEST BUILDERS
The beloved block-building RPG, DRAGON QUEST BUILDERS, is bringing its handy crafting features to Steam! Weave your own tale as you build your own unique buildings and towns to restore Alefgard to it's former glory!
Once Human
Once Human is a multiplayer open-world survival game set in a strange, post-apocalyptic future. Unite with friends to fight monstrous enemies, uncover secret plots, compete for resources, and build your own territory. Once, you were merely human. Now, you have the power to remake the world.
Space Trash Scavenger
Grab your jetpack and explore procedural asteroid fields, derelict spaceships and abandoned outposts. Build and automate your Space Rig to process scavenged trash. Craft, trade and fight your way home in this interstellar, open-world survival sandbox.
Winter Survival
Dive into the ultimate winter survival experience and see if you can survive long enough for rescue to arrive. Experience our unique sanity system that takes survival to the next level.
Len's Island
Discover, survive, and thrive in Len’s Island, where intense dungeon crawling meets open-world action RPG. Master skill-based combat, craft powerful items, build and defend your homestead, and find solace in farming. Your journey, your destiny.Most played games like Radiation Island on Steam
Take a look at the top games like Radiation Island that are currently attracting the largest player bases on the Steam platform, as of April 19th 2025.
1. Rust
Similarity 83% The only aim in Rust is to survive. Everything wants you to die - the island’s wildlife, other inhabitants, the environment, and other survivors. Do whatever it takes to last another night. Rust is a survival, crafting and multiplayer game developed and published by Facepunch Studios. Released on February 08th 2018 has received 1,210,131 reviews of which 1,055,970 were positive and 154,161 were negative resulting in a rating of 8.7 out of 10. The game has hit the top spot as the #1 most played game like Radiation Island, thanks to its 114,699 peak concurrent players over the last day.
8.7
1,055,970
154,161
114,699
players
2. RuneScape: Dragonwilds
Similarity 79% On RuneScape’s forgotten continent of Ashenfall, dragons have awoken. Gather, build, skill and craft to survive in this co-operative (1-4) survival crafting game. Only by mastering survival and uncovering ancient secrets can they hope to slay the Dragon Queen—alone or with allies. RuneScape: Dragonwilds is a early access, survival and multiplayer game developed and published by Jagex Ltd. Released on April 15th 2025 has received 4,514 reviews of which 3,711 were positive and 803 were negative resulting in a rating of 8.0 out of 10. While seeing 47,839 players online at once in the last 24 hours, this game is currently ranked #2 among games like Radiation Island based on player count.
8.0
3,711
803
47,839
players
3. Valheim
Similarity 89% A brutal exploration and survival game for 1-10 players, set in a procedurally-generated purgatory inspired by viking culture. Battle, build, and conquer your way to a saga worthy of Odin’s patronage! Valheim is a open world survival craft, survival and online co-op game developed by Iron Gate AB and published by Coffee Stain Publishing. Released on February 02nd 2021 has received 494,961 reviews of which 467,117 were positive and 27,844 were negative resulting in an impressive rating of 9.4 out of 10. While seeing 25,592 players online at once in the last 24 hours, this game is currently ranked #3 among games like Radiation Island based on player count.
9.4
467,117
27,844
25,592
players
4. Terraria
Similarity 89% Dig, fight, explore, build! Nothing is impossible in this action-packed adventure game. Four Pack also available! Terraria is a open world survival craft, sandbox and survival game developed and published by Re-Logic. Released on May 16th 2011 has received 1,394,254 reviews of which 1,359,264 were positive and 34,990 were negative resulting in an impressive rating of 9.7 out of 10. With 24,884 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like Radiation Island.
9.7
1,359,264
34,990
24,884
players
5. 7 Days to Die
Similarity 65% 7 Days to Die is an open-world game that is a unique combination of first-person shooter, survival horror, tower defense, and role-playing games. Play the definitive zombie survival sandbox RPG that came first. Navezgane awaits! 7 Days to Die is a survival, zombies and multiplayer game developed by The Fun Pimps and published by The Fun Pimps Entertainment LLC. Released on July 25th 2024 has received 366,213 reviews of which 324,486 were positive and 41,727 were negative resulting in a rating of 8.8 out of 10. With 24,015 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like Radiation Island.
8.8
324,486
41,727
24,015
players
6. Project Zomboid
Similarity 86% Project Zomboid is the ultimate in zombie survival. Alone or in MP: you loot, build, craft, fight, farm and fish in a struggle to survive. A hardcore RPG skillset, a vast map, massively customisable sandbox and a cute tutorial raccoon await the unwary. So how will you die? All it takes is a bite.. Project Zomboid is a survival, zombies and open world game developed and published by The Indie Stone. Released on November 08th 2013 has received 367,520 reviews of which 346,127 were positive and 21,393 were negative resulting in an impressive rating of 9.3 out of 10. With 22,451 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like Radiation Island.
9.3
346,127
21,393
22,451
players
7. ARK: Survival Evolved
Similarity 89% Stranded on the shores of a mysterious island, you must learn to survive. Use your cunning to kill or tame the primeval creatures roaming the land, and encounter other players to survive, dominate... and escape! ARK: Survival Evolved is a open world survival craft, survival and multiplayer game developed by Studio Wildcard, Instinct Games, Efecto Studios and Virtual Basement LLC and published by Studio Wildcard and Snail Games USA. Released on August 27th 2017 has received 724,811 reviews of which 607,154 were positive and 117,657 were negative resulting in a rating of 8.3 out of 10. With 22,313 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like Radiation Island.
8.3
607,154
117,657
22,313
players
8. Satisfactory
Similarity 77% Satisfactory is a first-person open-world factory building game with a dash of exploration and combat. Play alone or with friends, explore an alien planet, create multi-story factories, and enter conveyor belt heaven! Satisfactory is a base-building, automation and open world game developed by Coffee Stain Studios and published by Coffee Stain Publishing. Released on September 10th 2024 has received 228,332 reviews of which 221,780 were positive and 6,552 were negative resulting in an impressive rating of 9.6 out of 10. With 19,872 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like Radiation Island.
9.6
221,780
6,552
19,872
players
9. Palworld
Similarity 83% Fight, farm, build and work alongside mysterious creatures called "Pals" in this completely new multiplayer, open world survival and crafting game! Palworld is a open world, survival and multiplayer game developed and published by Pocketpair. Released on January 18th 2024 has received 376,422 reviews of which 354,339 were positive and 22,083 were negative resulting in an impressive rating of 9.3 out of 10. With 19,664 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like Radiation Island.
9.3
354,339
22,083
19,664
players
10. Once Human
Similarity 76% Once Human is a multiplayer open-world survival game set in a strange, post-apocalyptic future. Unite with friends to fight monstrous enemies, uncover secret plots, compete for resources, and build your own territory. Once, you were merely human. Now, you have the power to remake the world. Once Human is a multiplayer, free to play and open world survival craft game developed and published by Starry Studio. Released on July 09th 2024 has received 124,888 reviews of which 92,215 were positive and 32,673 were negative resulting in a rating of 7.3 out of 10. With 16,245 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like Radiation Island.
7.3
92,215
32,673
16,245
players
Best deals on games like Radiation Island on Steam
Discover fantastic savings with the best discounts on a variety of games like Radiation Island available on Steam right now, updated on April 19th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like Radiation Island.
1. Black Skylands
Similarity 71% Become the captain of an airship and explore the world of the skies, gather resources and build powerful weapons, uncover ancient secrets and fight beneath your ship's sails. Black Skylands is a pixel graphics, open world and sandbox game developed by Hungry Couch Games and published by tinyBuild. Released on August 15th 2023 has received 3,806 reviews of which 3,155 were positive and 651 were negative resulting in a rating of 8.0 out of 10. Featuring a massive 95% discount, this game currently holds the #1 spot in the best deals for games like Radiation Island.
8.0
3,155
651
-95%
20.00€
1.00€
2. Dead Age
Similarity 73% Survive the zombie apocalypse with a “Final Fantasy” turn-based combat and permanent death! Manage survivors, craft materials, and make difficult decisions. Defend your camp against hordes of the undead to prevail in this non-linear rogue-lite (comparable to FTL). Innovative Indie Survival-RPG! Dead Age is a rpg, zombies and strategy game developed by Silent Dreams and published by Headup. Released on November 04th 2016 has received 5,457 reviews of which 4,457 were positive and 1,000 were negative resulting in a rating of 7.9 out of 10. Thanks to its incredible 93% discount, this game is now the #2 best deal in games like Radiation Island.
7.9
4,457
1,000
-93%
14.29€
1.00€
3. The Flame in the Flood
Similarity 71% A rogue-like river journey through the backwaters of a forgotten post-societal America. Forage, craft, evade predators. The Flame in the Flood is a survival, adventure and action roguelike game developed by The Molasses Flood and published by CD PROJEKT RED. Released on February 24th 2016 has received 7,142 reviews of which 5,426 were positive and 1,716 were negative resulting in a rating of 7.4 out of 10. Thanks to its incredible 93% discount, this game is now the #3 best deal in games like Radiation Island.
7.4
5,426
1,716
-93%
15.14€
1.06€
4. Hard West
Similarity 68% When a tragic turn of events sets one man down a path of supernatural chaos and revenge, he must brutally hunt down all those who wronged him. Fight and survive through 8 unique story-based scenarios, and try your hand at 40 individually designed turn-based combat missions Hard West is a western, turn-based strategy and strategy game developed by CreativeForge Games and published by Good Shepherd Entertainment. Released on November 18th 2015 has received 4,736 reviews of which 3,568 were positive and 1,168 were negative resulting in a rating of 7.3 out of 10. Currently offered at a significant 93% discount, this title has earned the #4 position in the best deals for games like Radiation Island.
7.3
3,568
1,168
-93%
21.29€
1.49€
5. Conan Exiles
Similarity 79% An online multiplayer survival game, now with sorcery, set in the lands of Conan the Barbarian. Survive in a vast open world sandbox, build your home into a kingdom, and dominate your enemies in single or multiplayer. Conan Exiles is a survival and open world game developed and published by Funcom. Released on May 08th 2018 has received 106,283 reviews of which 83,576 were positive and 22,707 were negative resulting in a rating of 7.8 out of 10. Currently offered at a significant 91% discount, this title has earned the #5 position in the best deals for games like Radiation Island.
7.8
83,576
22,707
-91%
41.89€
3.77€
6. Diluvion: Resubmerged
Similarity 67% Diluvion is a 3D deep sea, Jules Verne inspired, exploration game with RPG elements and thrilling submarine combat. As the Captain of your own vessel, you must grow and manage your crew as you search for the secrets of the past in a hauntingly beautiful flooded world. Diluvion: Resubmerged is a action, underwater and adventure game developed by Arachnid Games and published by Good Shepherd Entertainment. Released on February 02nd 2017 has received 1,105 reviews of which 686 were positive and 419 were negative resulting in a rating of 6.1 out of 10. Currently offered at a significant 91% discount, this title has earned the #6 position in the best deals for games like Radiation Island.
6.1
686
419
-91%
20.89€
1.88€
7. TerraTech
Similarity 89% TerraTech is an open-world, sandbox adventure game, where you design and build your own creations through a mix of crafting, combat and discovery. Design vehicles from a huge library of blocks. Scavenge, craft and buy new parts to survive and become the ultimate planetary prospector. TerraTech is a building, sandbox and open world game developed and published by Payload Studios. Released on August 10th 2018 has received 23,221 reviews of which 21,196 were positive and 2,025 were negative resulting in a rating of 8.9 out of 10. Currently offered at a significant 90% discount, this title has earned the #7 position in the best deals for games like Radiation Island.
8.9
21,196
2,025
-90%
24.20€
2.42€
8. Pathologic Classic HD
Similarity 68% Pathologic Classic HD is the Definitive Edition of the original Cult Classic Psychological First-Person Survival game. In this unforgettable experience, players control one of three unique characters as they try to save a mysterious town from a deadly plague that cannot be stopped. Pathologic Classic HD is a atmospheric, story rich and survival game developed by Ice-Pick Lodge and General Arcade and published by Good Shepherd Entertainment. Released on October 29th 2015 has received 4,005 reviews of which 3,513 were positive and 492 were negative resulting in a rating of 8.5 out of 10. Currently offered at a significant 90% discount, this title has earned the #8 position in the best deals for games like Radiation Island.
8.5
3,513
492
-90%
12.99€
1.29€
9. SKYHILL
Similarity 74% World War III is over, the world's infested with mutants and your supplies are running out. Fight your way down this damned hotel, from your penthouse on top to the first floor. Craft weapons, search for food and reach the exit. Otherwise you'll be torn apart, starve to death or maybe both... SKYHILL is a survival, action roguelike and adventure game developed by Mandragora and published by Daedalic Entertainment. Released on October 06th 2015 has received 5,094 reviews of which 3,964 were positive and 1,130 were negative resulting in a rating of 7.6 out of 10. Currently offered at a significant 90% discount, this title has earned the #9 position in the best deals for games like Radiation Island.
7.6
3,964
1,130
-90%
9.99€
0.99€
10. Hard West
Similarity 68% When a tragic turn of events sets one man down a path of supernatural chaos and revenge, he must brutally hunt down all those who wronged him. Fight and survive through 8 unique story-based scenarios, and try your hand at 40 individually designed turn-based combat missions Hard West is a game developed and published by . Released on November 18th 2015 has received 4,736 reviews of which 3,568 were positive and 1,168 were negative resulting in a rating of 7.3 out of 10. Currently offered at a significant 93% discount, this title has earned the #10 position in the best deals for games like Radiation Island.
7.3
3,568
1,168
-93%
21.29€
1.49€
Free games like Radiation Island on Steam
Check out this fantastic list of free-to-play games like Radiation Island you can enjoy on Steam right now, updated on April 19th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play games like Radiation Island.
1. Once Human
Similarity 76% Once Human is a multiplayer open-world survival game set in a strange, post-apocalyptic future. Unite with friends to fight monstrous enemies, uncover secret plots, compete for resources, and build your own territory. Once, you were merely human. Now, you have the power to remake the world. Once Human is a multiplayer, free to play and open world survival craft game developed and published by Starry Studio. Released on July 09th 2024 has received 124,888 reviews of which 92,215 were positive and 32,673 were negative resulting in a rating of 7.3 out of 10. With 16,245 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like Radiation Island.
7.3
92,215
32,673
16,245
players
2. Unturned
Similarity 83% You're a survivor in the zombie infested ruins of society, and must work with your friends and forge alliances to remain among the living. Unturned is a free to play, survival and zombies game developed and published by Smartly Dressed Games. Released on July 07th 2017 has received 553,929 reviews of which 505,358 were positive and 48,571 were negative resulting in an impressive rating of 9.1 out of 10. Thanks to its free to play tag and a daily player base of 15,006, this game has secured the #2 spot in the ranking of free games like Radiation Island.
9.1
505,358
48,571
15,006
players
3. Stay Out
Similarity 67% Stay Out - is a MMORPG with shooter elements, based on spirit of “stalking” - an urban exploration, searching and exploring mysterious, abandoned and forgotten by humanity pieces of our planet. Stay Out is a free to play, survival and multiplayer game developed and published by MOBITECH LLC. Released on November 27th 2019 has received 25,214 reviews of which 16,371 were positive and 8,843 were negative resulting in a rating of 6.4 out of 10. Thanks to its free to play tag and a daily player base of 927, this game has secured the #3 spot in the ranking of free games like Radiation Island.
6.4
16,371
8,843
927
players
4. No More Room in Hell
Similarity 74% The chances of you surviving this all out war of society and the undead are slim to none. Already, there are millions of the walking dead shambling about, searching for food to eat. There's no known cure. One bite can possibly end it all for you. However, you aren't alone in this nightmare. No More Room in Hell is a free to play, zombies and multiplayer game developed by No More Room in Hell Team and published by Lever Games. Released on October 31st 2013 has received 73,900 reviews of which 66,431 were positive and 7,469 were negative resulting in a rating of 8.9 out of 10. Attracting a solid base of 483 players due to its free access, this strategy game has achieved the #4 position in the best free games like Radiation Island.
8.9
66,431
7,469
483
players
5. Cry of Fear
Similarity 73% Cry of Fear is a psychological single-player and co-op horror game set in a deserted town filled with horrific creatures and nightmarish delusions. You play as a young man desperately searching for answers in the cold Scandinavian night, finding his way through the city as he slowly descends into madness. Cry of Fear is a horror, free to play and multiplayer game developed and published by Team Psykskallar. Released on April 25th 2013 has received 73,301 reviews of which 64,872 were positive and 8,429 were negative resulting in a rating of 8.7 out of 10. Attracting a solid base of 438 players due to its free access, this strategy game has achieved the #5 position in the best free games like Radiation Island.
8.7
64,872
8,429
438
players
6. Will To Live Online
Similarity 70% Will To Live is a MMORPG-shooter whose action takes place in a severe post-apocalyptic world. Explore the world, engage in fights with mutants and other survivors, join the clans in the struggle for existence and prove your right to Live. Will To Live Online is a survival, free to play and multiplayer game developed and published by AlphaSoft LLC. Released on April 05th 2018 has received 17,454 reviews of which 12,204 were positive and 5,250 were negative resulting in a rating of 6.9 out of 10. Attracting a solid base of 392 players due to its free access, this strategy game has achieved the #6 position in the best free games like Radiation Island.
6.9
12,204
5,250
392
players
7. Wurm Online
Similarity 71% A sandbox MMORPG that has pushed the boundaries on what it means to be open world and stood the test of time. Dig, mine, shape the world around you and make your lasting mark! Wurm Online is a free to play, sandbox and rpg game developed and published by Code Club AB. Released on July 24th 2020 has received 2,303 reviews of which 1,427 were positive and 876 were negative resulting in a rating of 6.1 out of 10. Attracting a solid base of 206 players due to its free access, this strategy game has achieved the #7 position in the best free games like Radiation Island.
6.1
1,427
876
206
players
8. Zumbi Blocks 2 Open Alpha
Similarity 68% Loot. Kill. Survive. Can you escape ? (probably not) Zumbi Blocks 2 is the official sequel to the 2013 free browser zombie game. Stuck on an island, cut off from the rest of humanity, you wake up. The secret to breaking free from this place lies asleep, underground. From the soil, zumbies emerge. Zumbi Blocks 2 Open Alpha is a action, multiplayer and open world survival craft game developed and published by Adrian Kaminski. Released on April 15th 2023 has received 7,679 reviews of which 6,817 were positive and 862 were negative resulting in a rating of 8.6 out of 10. Attracting a solid base of 142 players due to its free access, this strategy game has achieved the #8 position in the best free games like Radiation Island.
8.6
6,817
862
142
players
9. KUBOOM
Similarity 71% Cross-platform hurricane online 3D Shooter KUBOOM is a free to play, action and multiplayer game developed and published by nobodyshot. Released on October 07th 2016 has received 3,967 reviews of which 2,448 were positive and 1,519 were negative resulting in a rating of 6.1 out of 10. The game currently holds the #9 spot among the most played free games like Radiation Island.
6.1
2,448
1,519
80
players
10. Dead Maze
Similarity 67% Dead Maze is a 2D MMO game set in a destroyed contemporary world, filled with zombies. Explore the world, scavenge and craft as many items as possible, to survive the hostile environment and upgrade your gear and camp as you go. Dead Maze is a free to play, survival and zombies game developed and published by Atelier 801. Released on February 13th 2018 has received 4,706 reviews of which 3,533 were positive and 1,173 were negative resulting in a rating of 7.3 out of 10. The game currently holds the #10 spot among the most played free games like Radiation Island.
7.3
3,533
1,173
74
players