First off i want to say this is one of the most fun games i've played.
Gimbal is a top-down, high-atmospheric (or space) game in which you build ships to destroy other ships. The ships are fully customizable. There are many maps and gamemodes to try.
You start off with $1500T and you earn more by destroying ships. When you reach a certain amount of money you rank up and unlock new parts to build with. Once you hit $6000T you can reset back down (you can only do this once) and after you get past $6000T again you unlock "MasterMind mode". This is where you can have as much money as you can get, there is no cap.
For now it isn't a very active game, so once you reach mastermind it can get boring, because the bots cap at $6000T and you 1 shot all of them. If anybody is on the servers though (which there is usually at least 2 people on for now) it is a lot more fun.
The developer listens to everybody, and tries to add in anything that is suggested. There is a very good forum where you can talk about anything in the game. There is a very good community, most people are nice.
That is pretty much it, I highly recommend the game to anybody.