Hey!
What I liked about the game:
You did a 3D game and I liked your aliens, the domes and the truck. Did you do them in blender? Also I liked a thing about your game, that you might not even have intended:
After loosing, I saw that I could still drive around. So I killed all aliens and then drove around for 15 Minutes, exploring your map. Honestly! Remake the game. Skip the alien-destroy-dome part and make it an exploration game. Let me get out of the truck with a small person that can walk around and let me find some old artifacts somewhere that may tell me the story of the last settlement here or an ancient civilization. Aliens could still be part of it :). At least, I tried to fall of your map, but I could not find a place to do it, although I climbed many hills with that truck and was always happy when I made it on top :)
So again: I love that you let the player play further, after the game over screen. A very nice thing to do, and something I will occasionally adapt in some of my future games for sure.
Oh! And I enjoyed running over the aliens ^^. That is a great part of the game.
What I would wish for:
I was not able to defend even one dome longer than a second. The aliens are way faster than the - very slow - truck and the domes are usually down before I can even turn the truck to hin a single alien. It would be great if the truck would be faster and had faster turn arounds. Also: one of your screenshots shows the game more from an ego or 3rd person perspective. That would have been fun too. To drive like in a driving game and kill the aliens.
Second: The mouse controls are opposite from what I was expecting, so it was kind of flight control. It would be nice to have the option to flip the mouse control, so that the camera actually turns right, when I move it right.
And last: I missed some sound. A truck engine, some creepy alien sound or the sound of the dome being destroyed would have been nice and maybe some fitting background music.
Overall:
I find the game too hard to survive it longer than a few seconds and I doubt it is possible to defend the domes. But maybe I will be proven wrong here! I think, with a bit of tweaking, it is still a good game. Just make the truck a bit faster and give less power to the aliens, so the domes fall slower and this alien crushing will be even more fun :)
Keep it up and thanks for submitting!
I had good fun exploring the mars :)