Colobot: Gold Edition is an open-source real-time strategy game where you can program your units in a language called CBOT.
A basic map for level designers, game developers and testers. It can be used as a base to create your own level or as an example of a working mod for the most recent version of the game. The map is perfect for testing purposes as it is relatively simple and provides useful features like containing every game object on the map or using a grid-like texture showing the size of the game units. The level is, in fact, often used by the main game developers.