FlyOrDie

This is a multiplayer online 3D game that can be run on a Windows PC (Windows XP or newer).
You control a spaceship in space. There are planets and asteroids in the game environment, that you can utilize to get resources.
With enough resources, you can upgrade your ships to gain advantages. You will have to fight other players in order to get resources, and it is here your advantages will come into play.
The game has no ending.

It is also an easy-to-use game engine, that can be used if you want to develop a simple game and save some time in the development process.