A really nice survival space simulator game with ship management, crafting, looting, scavenging, building, spaceship fights, exploration, diplomacy and more. Made by one passionate dev.
It's in Pre-Alpha, but there is already more than a lot of EA games on Steam.
An oceanic survival game.
Puzzle type game, where you are shrinking and must find the recipes and base materials to create an antidote before you get too small.
Spaceflight programming adventure.
A Voxel game Engine... with a default game called "minetest".
Competitive shooter as CS:GO