Click or drag on the terrain grid to apply the selected tool. Tools affect heightmap values which determine biome coloring.
Tools: 🔼Raise (+8), 🔽Lower (-8), 🌊Erode (smooth toward neighbors), 💧Water (set to water level), 🎨Paint (paint biomes directly)
Biomes by height: Water(0-15) 🟦, Beach(16-25) 🟨, Grass(26-45) 🟩, Forest(46-60) 🟫, Mountain(61-80) ⬜, Snow(81-100) ⬜
Rivers: Use lower tool and drag to carve river paths. Complete challenges for bonus points!