Alone/Awake

"Basically this is a short Twine game. The ambition was to focus on space, a lonely astronaut and also trying to work in some animations. Some parts I'm pleased with (this is one of IF games I've made that actually has choices), and other stuff not so much." - author's description

A lonely astronaut with almost no oxygen left - striving to survive.
Or is it a story about two astronauts on a desolate planet?
The astronauts provides us with a warning, or rather their own tale of what transpired.