Outer Wilds can currently only be obtained via the Epic Games Store but that will no longer be the case in the near future. Mobius Digital and Annapurna Interactive are now bringing this space-faring mystery adventure game to Steam on June 18. Hooray!
Outer Wilds is quite a good game and it was even a game-of-the-year contender at one point (with good reason, of course). If you like to explore and figure out how things work first-hand, this is definitely a game for you.
Make sure you check back on June 18 to grab your copy of the game. Trust me, it's worth it!