The Populous Map Checker is a small application written in C# in late 2009, by "TedTycoon". The idea of the program is to automatically validate a Populous map that might be submitted online. It computes a grade (A, B, C or D) for each type of analysis it does and then calculates an overall grade for the map. Its purpose is to quickly check if a map is suitable and a reasonable standard for use in multiplayer games. The application also shows the user a 2D height map using the Map Viewer Control.

The application is intended for multiplayer levels as the grading of land sizes and heights will tend to give small single player levels a (probably undeserved) low grade. It should give a accurate grade for a typical single player map though.

Ted never got round to finishing the program, such as checks to see if objects are connected properly to triggers and whether any objects are on water. Nevertheless the program does grade the land mass, land height and the number of objects, trees, wildmen and stone heads.