Starbase

Space Engineers is a sandbox game about engineering, construction and maintenance of space works. Players build space ships and space stations of various sizes and utilization (civil and military), pilot ships and perform asteroid mining. Space Engineers utilizes a realistic volumetric-based physics engine: all objects can be assembled, disassembled, damaged and destroyed.

Rising World is an open-world sandbox game with randomly generated, fully destructible environments. Starting with the most basic of tools, collect resources to survive in the wildness. Evolve your world to create one of the biggest cities of all time or a gigantic castle, or simply let your imagination run riot! If being creative is all too much, just connect with your friends and get them to help. Rising World is a procedurally generated world, with fully textures landscapes, over 200 different building materials, loads of tools and many other items to help you create OR destroy your world without any restrictions.

Outer Wilds is a critically-acclaimed and award-winning open world mystery about a solar system trapped in an endless time loop. The newest member of the space program in a small village on the planet Timber Hearth, the player navigates a space shuttle and travels across their solar system to get to the bottom of its mysteries by exploring the cosmos and gathering the knowledge hidden within each of the system's planets, left behind by another civilization in the distant past.

Empyrion - Galactic Survival is a 3D open world space sandbox survival adventure. Build mighty ships, menacing space stations and vast planetary settlements to explore, conquer or exploit a variety of different planets and the allegedly empty space!

Dual Universe is a Continuous Single-Shard sandbox MMORPG taking place in a vast Sci-Fi universe, focusing on emergent gameplay with player-driven in-game economy, politics, trade and warfare. Players can freely modify the voxel-based universe by creating structures, spaceships or giant orbital stations, giving birth to empires and civilizations.

Nimbatus: The Drone Constructor is an action simulation game. Craft drones out of hundreds of different parts and explore a fully destructible, procedurally generated galaxy!

Radiation Island is a survival adventure game where you craft your own destiny in a huge open world environment. As part of the Philadelphia Experiment you have become stranded in a parallel, alternate reality. Discover this new and mysterious world, with all its surprises. Use everything you find to survive it and solve its puzzle to get back to the real world.

Dude Simulator is an open world sandbox game. This is a life simulator. The main objective is to enjoy what you are doing.

Satisfactory is a first-person factory simulation game set on an alien planet. Players take the role of a Pioneer, an employee of the megacorporation FICSIT Inc., tasked with harvesting natural resources and constructing increasingly complex automated production lines. The goal is to manufacture components for "Project Assembly," delivered via a space elevator to an orbital platform. The game features a hand-crafted open world spanning approximately 30 square kilometers across multiple biomes, a tiered technology progression system, cooperative multiplayer, and extensive logistics management through conveyor belts, pipelines, and vehicles.

An alien world for the taking. Explore, survive and make your fortune if you dare. Icarus is a multiplayer co-operative survival game with persistent metagame progression.