A single man in a full body suit and mask (had to eat through a tube) in a very Fallout-like post apocalyptic earth (he even had something like a Pip-Boy, that showed him a mini-map of his goals etc.) that was going from teleporter to teleporter for some reason. Also, aliens that I think looked like floating jelly fish or something like that. English language, very low budget.
99% sure you’re thinking of HELLACIOUS ACRES: THE CASE OF JOHN GLASS.