Top similar games like Nucleus:

GRAV is a sand box experience where you explore a multitude of planets, hunt strange alien creatures, build and defend outposts, craft weapons and armor, and attempt to survive against other players in a hostile environment.

Step into a high-stakes, sci-fi FPS adventure where survival, base-building, and high time-to-kill combat merge in a dynamic, fully explorable spherical world.

Have you got what it takes to survive on Mars? ROKH is a multiplayer survival game featuring scientific realism and extremely deep crafting and building. Make the red planet your sandbox and create a thriving colony.

Subsistence is a sandbox, first person, solo or co-op, PvE open-world survival game. Struggle through changing seasons to build a base, develop technology and gear-up in the hostile environment. Defend yourself from wildlife, the elements and AI hunters (who also build bases in the world).

No Man's Sky is a game about exploration and survival in an infinite procedurally generated universe.

Stranded in a hostile alien world, you must fight to survive. Hunt, harvest, craft, advance skills, and build using local resources along with technology from your voyage.

Hurtworld is a hardcore multiplayer survival FPS with a focus on competitive gunplay and strategic map control. Built for hardcore gamers, Hurtworld aims to punish.

Stars End is a sci-fi survival sandbox set on the wild frontier of a distant star system. Play solo or host your own server as you craft, build, and battle to survive in a galaxy shaped by danger, discovery, and your own grit.

A open-world survival game , where you can construct your mobile fortress, TitanWalker, and bases, kill AI enemies and use their parts to craft powerful weapons, and survive in the post-apocalyptic world with your friends!

You were deep in uncharted space on a research mission. Disaster struck. Together with your friends, explore a mysterious asteroid field and mine whatever resources possible to build what you need to survive.

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.

Star shelter is a space survival game built from the ground up for VR. You are stranded in space, you must climb around in Zero-G, explore, scavenge, craft, hack and fight to survive. You have to build, arm and upgrade your own space station in order to escape the cosmic graveyard.

In Outer Space, you play either alone or with others as a stranded astronaut who needs to repair his spaceship in order to escape from this planet. You can explore space, complete missions, or settle on a planet.

Outpost Zero blends the genres of Multiplayer Base Building Survival and Simulation games in a Sci-Fi universe. On a lawless alien world, robotic scouts are tasked with building an Outpost for human colonists. Command AI minions, colonize the planet, and survive the perils of Gaiya.

Create your world in this sandbox game where you can dig, build, explore, fight, and farm. Have a different experience in a day or night adventure. Explore a procedurally generated world.

Raft™ throws you and your friends into an epic oceanic adventure! Alone or together, players battle to survive a perilous voyage across a vast sea! Gather debris, scavenge reefs and build your own floating home, but be wary of the man-eating sharks!

Triton Survival is an open world survival game about exploration, construction, engineering, and fighting on planets. Embark on this interstellar adventure and conquer the galaxy. Are you ready?

Loot the day. Hold the night. LootHold throws you and up to three friends into a world the machines won. Strip the ruins by day, race the sun home, spend the loot on guns or defences. Then hold your bunker through the night against waves of bloodthirsty robots. Survive to take the fight to them.

Dark and Light is a vast sandbox survival RPG set in a world dominated by powerful elemental forces. Find your way in a meticulously crafted world, featuring breathtaking landscapes, a wide variety of mythical creatures, and limitless possibility to craft, build, and unlock dozens of powerful weapons, spells, and skills.

Begin a journey in the beautiful world! Build your own town anywhere and explore the myterious lands anytime. Nothing is impossible in the open world: Be a legendary warrior and 5-star chef at the same time!

The conquest of the Solar System has begun – prove yourself as a space colonist! Pilot the spaceship, choose the planet you wish to inhabit and build your new home. However, remember that there are no rules or laws in outer space. Don't underestimate the danger and stay vigilant – enemies are near!

Your avatar is a brave warrior who has fallen in battle. But instead of well-deserved peace in Asgard, his soul is trapped in the harsh world of Niffelheim. Survive in this hostile world, ransack the neighbor lands, explore dangerous dungeons and find your way to Valhalla

Float through the cosmos on a meteor as a Splizard in this cooperative survival adventure. Gather drifting resources, craft tools and expand your meteor into a traveling base. Swarms of bloodthirsty space mosquitoes lurk in the darkness, and powerful monsters guard the secrets of survival.

Welcome to the brutal reality of the Stone Age. Fight, conquer, dominate! An open world full of traps and unexpected events, breathtaking views, dynamic changes in weather conditions, deadly beasts, and hostile tribes - welcome to "Primitive" and dare to survive.

Imagine DayZ or Rust but you're a duck. A persistent world survival game with PVP, PVE, crafting, base building and hat wearing ducks, wielding weapons.

Planet Explorers is an open world sandbox adventure RPG game set on a distant planet. The game uses a new OpenCL calculated voxel system to allow players to change the terrain in any way, create new objects such as weapons, vehicles, objects, and do it anywhere.

Force of Nature is a Sandbox game that combines Action, Adventure, RPG, Strategy and Management genres

Plunge into the open-world survival simulation set in the extreme conditions of the uncharted Amazon jungle. Use real-life survival techniques to craft, hunt, fight, and gather resources, set a makeshift shelter, or raise a fortress. Survive alone or team up with your friends and challenge the jungle together.