Games similar to Astroneer:

Ark: Survival Evolved takes on the survival genre with a unique blend of emergent multiplayer cooperation and competition. Players awake naked and starving on the beach of a mysterious island among a herd of other confused humans. On ARK, they must then hunt, harvest, craft, research technology, and build shelters to protect against scorching days, freezing nights, volatile weather systems, dangerous wildlife, and potential enemies. Use cunning strategy and tactics to tame and ride the many dinosaurs and other primeval creatures roaming the dynamic, persistent ecosystems across land, sea, air, and even underground. Build your character’s strengths and gain items, skills, and pet creatures using in-depth role-playing systems. Start a tribe with hundreds of other players to survive and dominate competing tribes...and ultimately discover the ARK’s true purpose.

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.

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!

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

Miscreated is a multiplayer online hardcore survival game set in a post-apocalyptic future. You will need to survive against mutants, players, and even mother nature herself.

The Long Journey Home combines the endless freedom of space with a new open questing system that always leaves you in command. Deliver the stranded Glukkt to his homeworld as he asks, or to your new slaver friends? Attempt to make allies with everyone, or pin your hopes on the tougher races, and hope they never turn on you? Jump by jump, make hard decisions and live with the consequences, in a universe that is never the same twice.

Force of Nature is an indie open world sandbox game with fighting, crafting, building and farming systems.

A New Land, A New Life: Savage Lands is a gritty, brutal, first-person open-world fantasy survival experience in which players have only one goal: Stay Alive. Explore a world where days and nights are spent slaughtering vicious creatures, gathering scarce resources, building shelter and crafting powerful weapons needed to survive. Every decision counts, because one mistake can lead to an unfortunate encounter with death's cold embrace.

We take the colony sim genre into the near future, onto a lush planet where humans are making their first foothold. Characters and alien wildlife are brought to life through a rigorous simulation and the game plays out as a tug-of-war between humans and nature on a planet full of opportunities and dangers. Understanding the alien environment is crucial - discovered resources and crafting options enable you to adapt when food gets scarce, equipment breaks and alien animals attack.

StarMade is a 3D sandbox space shooter created by Robin "schema" Promesberger, founder of Schine. The game allows players to explore the vastness of space; building factories; creating ships, space stations and structures out of various block types. Both single-player worlds and multi-player servers are available players. StarMade is currently in Alpha, and is a free-to-play game.