Games like Space Engineers

Empyrion: Galactic Survival is a space survival adventure game that lets players build and pilot their own space ships and stations. Explore, mine, and fight across procedurally generated planets and alien structures in a vast, open universe. Experience a mix of sandbox construction, survival, and combat gameplay, with a heavy emphasis on player freedom and creativity.

Scrap Mechanic is a multiplayer survival sandbox game that lets you build and create using powerful tools. Crash-landed on a strange planet, you must defend against hostile Farmbots and engineer your own adventures. Regular updates bring new content and optimizations to this imaginative, robot-filled world.

TerraTech is an open-world sandbox adventure where you design and build vehicles from various blocks to explore, scavenge, and battle across diverse environments. Featuring co-op and PvP multiplayer modes, stunning graphics, and a captivating soundtrack, it offers both creative freedom and intense combat challenges. Despite some bugs and grinding, its humor and replayability make for a fun, engaging experience.

Stormworks: Build and Rescue is a physics-based game that allows players to design, build, and pilot their own sea-rescue vehicles. Players must use their problem-solving skills to complete missions and rescue citizens in various challenging scenarios. The game also features a sandbox mode for open-ended creative play.

"Trailmakers is a physics-based vehicle construction sandbox game, where you can build and pilot cars, planes, and boats in a variety of environments. The game features a campaign mode, rally mode to learn building, and sandbox maps for creative building. Multiplayer mode supports up to eight players for cooperative or competitive gameplay. Use various weapons and blocks to build and customize your ultimate combat vehicle."

Avorion is a sandbox space simulation game that lets you build your own space ships and explore a procedurally generated universe. Mine resources, trade goods, and engage in space combat while navigating political alliances and factions. Experience a dynamic world that evolves based on your actions and interactions with other players.

StarMade is a free-to-play Sci-Fi Shooter game, currently in Alpha, that offers single-player, local multi-player, and online co-op/PvP gameplay. Players can support the developers by purchasing the game, which will grant access to future updates and exclusive features such as blueprint hosting and multiple skin uploads. Despite some optimization issues and bugs, the game offers plenty of humor and grinding for space exploration and battles.

"From The Depths" is a sandbox vehicle construction game where you can build and command battleships, planes, submarines, and more in intense battles. The game features a creative mode, a strategic campaign with eight factions, and a story mode. It also offers in-game planet, campaign, mission, and multiplayer map editors, as well as Steam workshop support for sharing your creations. Available on PC, Mac, and Linux.

Explore and exploit distant worlds in a game of aerospace industry and interplanetary exploration. With your gun you can reshape the landscape around you and gather resources. On your journey you come across special artifacts that will provide you with research points, in order to unlock new technologies. These include rovers and spaceships, in order the expand your reach on the planets in the sol…

"Give Me Basic " is a budget-friendly game that offers a sandbox experience similar to "Astroneer." Players can explore, gather resources, and build structures in a procedurally generated world, but may find that the game lacks some of the realism and polish of its inspiration. The game's Early Pack edition includes access to early updates and additional content. Follow the installation instructions provided in the game's YouTube video to get started.