Yes, at first I thought that Mars was a torus, but I realised it was more complicated as the North and South edges weren’t identified. The North and South poles have been decompactified (the opposite of stereoscopic compactification) onto the top and bottom horizontal lines on the map and the left and right edges have been identified. So it’s still topologically a sphere. Unless it is actually infinitely long and repeating with a finite width. Where are the martian dragons ready to eat the intrepid explorers?