Thanks for the answer!
Regarding the gravitation on Mars, it is in fact less than that on Earth because of the planets lower mass (according to the internet, https://en.m.wikipedia.org/wiki/Gravity_of_Mars)
I wanted to check, but forgot to do so. :S (Wikipedia is often misleading if not dead wrong on touchy subjects, but I believe it may well be right on this one. X))
There are invisible walls around the area which the player moves around in, so it should at least pose a little challenge getting past them to get to the edge of the map. In case the player falls through the ground / would get past the walls and fall off the edge of the map, they would respawn back at the Main Base along with the vehicle
Great safety detail!
Sorry to say, but so far, there is only one ending to the game, with no way to avoid the final shadow.
Aaah, I was convinced I had blundered! X) In this case, I think you should make it clear in some way that it is not the player’s fault. The good news is, this is what enticed me to start again and thus find the big crater bug to report. :)
The idea of looking at the shadows to make them disappear sounds fun (maybe even something like getting rid of the dark, so the shadows can't be there?), I might try implementing that if you wouldn't mind me using your idea (I would also add you to the credits / am planning to add credits to the end in the game).
Wow, I do not mind at all, actually, this is great! :D (… Well, if my idea is fine; I hope not to lead you astray!) On my way to become famous and take over the world. ^^
Once again, thank you for your comment, I'm very happy you enjoyed my game and took the time to give so much feedback :).