R-Tronic Robotron is a similar game to Asteroids and you will enjoy it, despite of the fact that there are not too many different elements from other games, although the graphics are somehow improved and you will enjoy the looks of them.
The gameplay require you to destroy the asteroids that appear on the screen and approach your ship, and you will have to move fast when this happens as otherwise there will be too many asteroids on the screen and you will not be able to destroy all of the rocks that appear on the screen and start their approach towards you.
