GegX World Builder — FREE Map Maker for Pixel Worlds

A free map maker that turns GegX asset packs into whole worlds. We spent many hours getting worlds right — the corner-Wang tile blending, meandering rivers, biome borders with ice seams, forests that only touch grass. This tool has all of it built in, one button away.

What it does

• Generate: seed + sliders for forest, desert, snow, swamp, mountains, water — plus meandering rivers and roads
• Paint: reshape any world with a biome brush — transitions are picked automatically, no tile fiddling
• Towns: one click places a village (with the Town Builder pack installed)
• Export: full-resolution PNG, or a Tiled map (.tmx + tileset) for Godot / Unity / GameMaker
• Projects: save as .gxworld and keep working later

Works out of the box, grows with your packs

The free starter biomes (grass, water, forest, desert) are built in. Drop these packs into the assets folder and the builder picks them up automatically:

• Overworld Biomes — 12 biomes, snow/ice coasts, swamps, roads, nature props
• Pixel Town Builder — unlocks the village tool (97 buildings)
• Overworld Village & Landmarks — landmarks and city walls

Windows, no install — unzip and run.