Breathedge is currently available for €0 on Steam and remains yours after you claim it.
It is a survival adventure in space, except it takes itself considerably less seriously than Subnautica and company. You collect scrap, craft equipment, explore wrecks, and try not to die from a lack of oxygen, your own questionable decisions, or some completely absurd object.
The humor is pitch-black, the scenery looks rather lovely, and space is as hostile as ever. In other words: ideal conditions for a relaxing evening.
Breathedge normally costs around €24.99, but is currently €0. No subscription is required.
Swetch verdict
Free space survival with dark humor? Worth adding to the library, even if it ends up decorating the backlog for a while.