GatoCat World Maker

GatoCat World Maker is a lightweight fantasy map creation tool that lets you quickly generate and edit procedural worlds. Paint biomes, countries, religions, cultures, rivers, roads, mountains, and settlements directly onto a grid map, then annotate your world with labels and notes. Designed for worldbuilders, writers, and game designers who want a fast, visual way to develop and organize their story settings. 

Use different brushes to paint mountains, roads, nations, religions, cultures, and a variety of other biomes. 

Place cities and villages, labels, and notes.

GatoCat World Maker comes with two pre-built worlds for you to explore and get an idea of what the tool can be used for.

Controls

Mouse

• Left Click – Paint terrain, place objects, or interact with tools
• Left Drag – Paint continuously or draw roads/rivers
• Right Click – Inspect tile / open notes
• Scroll Wheel – Zoom map (or resize selected label)
• Left Drag on Label – Move label
• Right Drag on Label – Rotate label

Keyboard

• 1–5 – Biome / Nation / Religion / Culture / Alliance tools
• 6 – Place city
• 7 – Place village
• 8 – Road tool
• 9 – River tool
• 0 – Inspect mode
• M – Mountain tool
• L – Label tool
• E – Erase tool
• + / - – Adjust brush size
• Ctrl + S – Save world
• Ctrl + O – Load world
• G – Generate new world
• C – Cycle map view modes
• Delete / Backspace – Remove selected label