Games like Outbreak Island on Steam
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Return from Core
Mine, build, and explore with Monster Girl companions in this underground sandbox adventure. Uncover lost tech, automate production, and forge bonds with allies as you fight to survive and journey back to the surface.
Keplerth
Welcome to Keplerth! Try to survive on a hostile alien planet in this 2D sandbox RPG, where you can choose to live alone or fight side by side with your friends in the online multiplayer mode. Survive, build, farm, fight, and explore your way to victory in this open-world adventure!
Sunkenland
Get ready for a Waterworld-themed survival game with modular base building, sunken city scavenging, crafting, base defense, and invasions of NPC clans for resources and territory. Ready for the water apocalypse?
Chernobylite Complete Edition
Chernobylite is a science-fiction survival horror RPG. Set in the hyper-realistic, 3D-scanned wasteland of Chernobyl’s Exclusion Zone, explore a non-linear storyline in your search to uncover the truth of your tortured past.
Kenshi
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.
Heat Death: Survival Train
Heat Death is a sci-fi survival game where you can build, upgrade, and customize your battle train to explore and survive a frozen world! This train is not only your shelter and vehicle, but also your weapon and ally to face hostile drones, deadly storms, and hidden mysteries of an unknown world!
Don't Be Afraid
Don't Be Afraid is an adventure horror game, that allows you to personate a boy, kidnapped by a psychopath. You have to survive, escape and find out how you were kidnapped. Exploring the gigantic, mysterious house of your torturer, you will soon reveal many secrets, hidden inside it’s walls…
Dread Dawn
This is an open-world zombie survival game set in a quarantined city. You play as a student left behind due to missing the evacuation convoy. Together with classmates and other survivors, you must defend the school, survive, and await rescue.
Arid
Discover the mysteries of the Atacama, explore the abandoned mining networks, evade the scorching sun and survive the environment in one of the most arid place in the world. Arid is a FREE survival game made by students from Breda University.
Occupy Mars: The Game
Survive and colonize Mars in a highly technical, open-world sandbox game. Build and upgrade your base, discover new regions, conduct mining operations, retrieve water, generate oxygen, grow crops, and fix broken parts.
Crashlands 2
Slap your way across a vibrant world where interstellar friendships are the key to your survival. Befriend eccentric aliens, craft bizarre weaponry, and stick it to the man in this sequel to the award-winning open world crafting RPG Crashlands.
KINGDOMS
KINGDOMS is a procedural medieval RPG in a randomly generated open world. The main feature of KINGDOMS is a smart AI system that completely controls NPC behavior. As the player, you can fully interact with this massive world and become any person you want to be.
The Front
The Front is a survival open-world crafting sandbox game. You are a resistance fighter sent back in time to stop the rise of a tyrannical empire. Collect resources, craft tech, build shelters, and fight monsters to accomplish your mission.
The Matchless Kungfu
The Matchless Kungfu is an open world sandbox RPG game based on a WuXia background. You can play any martial arts role you imagine in this wild world. Travel through the great wilderness, or be the leader of the group. The most important thing is, build your own story and live the experience!