This is a random procedurally generated hexagon map. The design is based on a classic Dungeons & Dragons overworld map with terrain and river. Every tile corresponds to a specific biome type and the river is mostly following the borders of the tiles. E.G. the idea behind this is that in a RPG or Pen & Paper game moving from tile to tile takes significantly longer when moving from a swamp or over the river. There are currently 5 biome types: -Plains -Grass -Forest -Swamp -Mountains and the river There are no bitmaps used, everything is randomly generated. As of now only the frequency of the biome types can be manipulated via parameters. The concept can be improved with more biomes like snow, desert etc. or a better (not so random) distribution of the types. Let me know what you think of it.