Very well done, donated $10! You're very talented, please keep it up!
I would have loved for there to be a little radio in the tank. There could be in-game music, or maybe transmissions from the different settlements, or perhaps someone you communicate with. You could even have lore audiotapes you could find, or perhaps mysterious transmissions what you have to decipher or locate. Could be an interesting mechanic to aid the ambience and lore. The silence took away from the experience a bit for me. I put on western slide guitar music in the background while I played it, It felt very fitting. Like RDR2 but snowy and post apocalyptic.
In any case, fantastic work! I would've paid $5 -$10 for this on Steam.