This is a game implementation that runs entirely inside of AutoCAD; it uses the C#.NET AutoCAD API. The game uses all of the standard elements that would be available as a drafter. The character sprites are made up of blocks. All of these items are generated at run time and are not imported from a library.

There are four different types of asteroids: the player’s ship, bullets, stars, and explosions
This project started by trying to answer a few simple questions
- Can we display real-time graphics?
- Can the graphics update without user interaction?
- Can we get enough performance to play a game?
Typically, the graphics area will only update under the following conditions
- The user moves the mouse on the screen
- The view is zoomed or panned
- The user manually regenerates the screen