Find the Steam hidden gems
A sandbox engineering game about designing ships, stations, and bases in a fully destructible space setting, spanning Creative and Survival modes with a steep learning curve.
In this single-player physics sim, you construct and program vehicles, explore and customize 3D planets, and tackle career contracts — a deep sandbox that reviewers stick with for 19 to 90+ hours.
2023-01-26
A deep, technical sandbox where you build and command voxel vehicles across ocean and space, with a steep learning curve and enormous time investment.
2020-11-06
A technical Mars-colony survival sandbox where you build bases, mine resources, and manage life support alone or in co-op — absorbing at times, but mixed reviews cite bugs and a rough tutorial.
2026-01-30
