Indie game storeFree gamesFun gamesHorror games
Game developmentAssetsComics
SalesBundles
Jobs
Tags

For example, spacewalks are very much outdoors.

That's an interesting idea. I'm usually not a fan of quick time events, but for something like "flip the switches right when the engineer tells you to or you'll fail to repair the oxygen tank," that might be one of a few minigame formats you could use as gameplay-varied reasons for spacewalks.