Top similar games like Kuiper Wanderer:

Welcome to Worlda! Worlda is a 2D topdown pixel art sandbox adventure where you play as grizzly bear cub Jonas as he sets forth into a large, infinite world, starting with nothing but a special staff.

2d space combat like no other. From the perspective of a single crew member, explore the fully destructible interior of any ship in a massive living world. Engage in space combat with no hitpoints where you know your enemy is dead when you see them fall out of their ship into the cold dark of space.

You are a Scraponaut, create your own spaceplane with unique parts each affecting the way your plane behaves. Collect scrap while exploring procedurally generated islands, unlock and discover unique new parts to upgrade your spaceplane.

Explore a procedurally generated galaxy, mine asteroids, refine minerals, colonize planets, build stations, deploy drones, salvage rare items, construct gear, level up, improve your ship, assemble a fleet, engage in combat, and take on the void.

Endless Sky is a 2D space trading and combat game inspired by the classic Escape Velocity series. Work your way up from a relatively wimpy shuttle, cargo ship, or fighter, to a highly upgraded and customized flagship or to a massive fleet of warships or freighters.

a southern town in the year of 2000, in the melting summer, kid rabbits without adult supervision are sent to the daycare, how do they spend time in this long summer ..?

A spaceship building and universe-exploration game. Collect resources, expand and grow your fleet, and conquer your personal galaxy. Stellar ambience by Peaks.

Explore space in a hand crafted, physics based universe, with immersive sound and atmosphere. Fight and board ships, collect rare cargo, and upgrade your ship.

Build your unique spaceship and explore space. Travel between planets, fight different opponents, trade and develop. Build the most efficient ship and fight with other players in multiplayer. 17 languages available.

Explore a scientifically grounded version of our solar system in this 2D space adventure. Mine asteroids, fight hostile ships, navigate the cold silence between worlds, and choose your place among rival factions.

The ultimate space sandbox. Participate in epic fleet battles, form alliances, strive to dominate entire galaxies and harness the universe’s resources for your industrious empire or the destruction of others. Customise your experience, the universe is yours!

Fly your space ship through a 2D sci-fi world. Fight real-time space battles, upgrade your vessel and trade rare resources. And if you get bored on the way, text with your AI assistant Hopper. She will know what to do.

3030 Deathwar is a unique mix of Adventure and Space Sim. Explore star systems, mine and hunt pirates in top-down mode. Leave your ship and switch into classic Adventuring mode, where you explore derelicts, talk to shady characters or head over to the space bar for a drink.

Trade to make your fortune in this lo-fi, laid back space adventure, where you'll get help from anthropomorphic animals, gear up your ship, and search for the mythical key to immortality hidden in the depths of space.

Explore the stars in this 2D top-down sci-fi game, where you can engage in dogfights with spaceships or disembark to challenge your enemies on foot. Complete contracts, unlock stronger ships, and discover ancient mysteries hidden in forgotten galaxies.

Rebel Galaxy is a swashbuckling space adventure, with action-packed combat, exploration, discovery, trade, and “negotiation” with the outlandish denizens at the edge of the known universe.

You are an independent mercenary and explorer living on the harsh surface of Largitas. Upgrade and customize your equipment in preparation to fight hostile operators, explore locations on the planet whilst navigating hazards, and interact and connect with the people forced to live here.

Fight monsters, level up skills, build structures, or casually live in a massive open-world. Join the public server or host your own and invite your friends to share an adventure.

AstroPlanet is a sandbox game where you find yourself in the role of an astronaut whose ship has crashed on a planet with an inhospitable atmosphere. Your task is not only to survive, but also to turn this world into a habitable place.

Welcome to this innovative sci-fi open-world! As the last survivor of humanity, build a home on a wild alien planet. Reignite civilization—from primal survival to advanced energy systems. Use the Planetary Control Module to reshape the world, uncover human secrets, and journey back to Earth.

Stellaxy is a space exploration immersive sim with alien cultures, boss battles, and massive Universes containing billions of planets to explore! Discover the mysteries of the Universes and find collectibles while completing quests.

Survive the mystery that awaits the JFS Gun-Dog in deep space in this retro visual novel / graphic adventure.

A sci-fi, base-building adventure where you build a 'ship' on an asteroid; explore space, battle slimes, raiders, space rhinos, and more. A story that includes following orders from a mysterious AI, shooting fish with a space grappling hook, invading space stations, fixing the exploded moon, etc.

Super Space Frogs is a 2D physics-based rocket game. Design, Deploy, and Fly awesome rockets. Unlock new technology to build bigger and better ships. Explore the solar system and unlocks the mysteries it holds. 

You have crash-landed into a mini-verse of tiny planets. Welcome to Minicology! Embark on an interstellar survival sandbox journey. Use your crafting, combat, and automation skills to survive the many challenges this mini-verse throws at you.

Explore the pixel cosmos, jumping from star system to star system. Land on fully procedural planets, and make them your home.

Naev is a game about space exploration, trade and combat. Players travel the galaxy and earn money by trading, fighting and performing missions.

You find yourself in a distant galaxy full of merchants, diplomats, bandits and powerful factions. Explore unknown galaxies, trade, fight pirates or become one. Uncover mysteries and shape the universe!

Explore over 1 million planets in an endless universe. Fight in brutal ground combat, from your ship, or aboard your freighter. Hack, loot, steal, upgrade, craft, build, and deceive your way to power. Uncover your past and help humanity find a new home. If No Man’s Sky and Starbound had a child.

Oldschool action open-world sci-fi with a unique storyline, frenetic battles, crude humor, loose morals and cows.

Dual Universe is a first-person Sci-Fi MMO built and driven by players, in a single persistent universe. You can build almost anything out of voxels, trade in a free economy, lead industries, travel through space, explore planets, or wage war in a fully editable sandbox universe. Subscription-based.

Step into the cockpit of creativity in AeroSpace Engineering | Sandbox – the ultimate physics-based simulation where your imagination meets the laws of aerodynamics.

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!

A heartwarming atmosphere,SF novel adventure game. Let's relax on another planet! You enjoy going to different places, interacting with space people, and trying part-time jobs.

Unknown Horizons is a retro styled top-down space exploration adventure where you will meet new alien races, learn their secrets and build their trust to get their help to find a way home.

Explore thousands of planets, gather resources, craft warships, and battle space pirates. Form factions, conquer worlds, and build your galactic empire in this vast sci-fi sandbox. Captain — are you ready?