Actually, I think what I'll go with is something kinda like KlingonRL, only set in the universe of the Space Empires 4X games. You'll be the captain of a Terran starship charged with fending off a Jraenar invasion after the Jraenar decimated the rest of the fleet. Instead of bumping to attack enemies, you'll bump to scan them; attacking will be automatic, and different weapons you equip will have different range and damage attributes. You can also bump planets to scan them; planets might turn out to be Jraenar strongholds (which you must eliminate), or allied colonies which give you minerals (which you can use to upgrade your ship). The map will be divided into "room-like" star systems arranged in a gridlike pattern (with some gaps here and there) and connected by "door-like" warp points. Regarding ship upgrades, you'll be able to install weapons, shields, armor, and engines - the more components you install on your ship, the slower it gets, so you need more engines to make it move faster again!