Starbound
Could be interesting
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.
Inspired by the adventure and imagination that we love from classic science-fiction, No Man's Sky presents you with a galaxy to explore, filled with unique planets and lifeforms, and constant danger and action. In No Man's Sky, every star is the light of a distant sun, each orbited by planets filled with life, and you can go to any of them you choose. Fly smoothly from deep space to planetary surfaces, with no loading screens, and no limits. In this infinite procedurally generated universe, you'll discover places and creatures that no other players have seen before - and perhaps never will again.
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!
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.
Vagante is an action-packed platformer that features permanent death and procedurally generated levels. Play cooperatively with friends or adventure solo in this challenging roguelike-inspired game.
Hardcore medieval multiplayer sandbox with terraforming, free preset and modular building construction, rich crafting (smelting, forging, farming, animal breeding etc.), survival, no target physics based combat, original combat formation system and numerous other features. Taking place in the fictional medieval world, game imposes a realistic system of global politics, economy, and socialization.
Force of Nature is an indie open world sandbox game with fighting, crafting, building and farming systems.
Sky Break is an open-world game on a stormy abandoned planet filled with wild mechas. Learn to master this world and to hack the mechas if you want a chance to survive.
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.
Children of Morta is a narrative driven hack and slash roguelike. Take on the role of a member of the Bergson family, the Guardians of Mount Morta, as you fight desperately against the Corruption. Experience not only what it means to be a hero, but to be part of a family that bears the weight of the mountain together.