TerrainForge: tileset PNG to game-ready Godot 4 TileSet

You bought a tileset. Now Godot wants you to hand-set peering bits across 47 tiles per terrain and draw collision shapes one tile at a time.

TerrainForge does that part.

Drop a PNG:

• pick tile size, margins, spacing (non-square tiles work) and see the grid instantly
• stamp a terrain template onto the sheet: blob-47, Wang 16 blob, Wang 4 edge, or 3x3 minimal. Every peering bit lands where the template says
• click any tile to fix bits by hand in a 3x3 editor
• auto-trace collision from the alpha channel, tune it with one slider, or set any tile to full block, empty, or manual with vertex dragging
• export a Godot 4 .tres you drop straight into your project: terrain sets, peering bits, physics layers, done
• or export Tiled .tsx with wangsets and collision

Every release is validated inside real Godot 4.7.1: ten tilesets exported and opened, plus a terrain-brush paint test confirming set_cells_terrain_connect resolves the right tiles on all three supported blob-47 layouts (cr31-style ascending ID, Godot 3 generic 12x4, and the built-in guide layout). 171 unit tests behind that.

Honest limits (v1):

• Godot 4.2+ text .tres only. No Godot 3, no Unity.
• Template-based assignment with manual editing. It does not guess arbitrary custom layouts.
• The cr31 preset uses ascending-ID ordering, not the literal packed sheet arrangements from cr31's site. Packed sheets need manual remapping.
• One terrain per tile's bits. Transition tiles blending two terrains on the same tile are not supported yet.
• Collision tracing reads the alpha channel and traces outer contours only; holes inside a tile are ignored. Solid tiles can use full-block mode.

All processing happens locally in your browser. Nothing is uploaded, ever. The paid version is a single HTML file you download and run fully offline: zero network calls, no account.

Demo vs full: The free browser demo above is the complete tool with every feature. The only cap: exports are limited to 64 tiles. The paid download is uncapped, with v1.x updates included.

Pay what feels right, from $5. If it saves you an evening of bit painting, it has paid for itself.

Made by deforestpeg, with AI writing most of the code (hence the Code tag). The tool itself is plain deterministic software: no AI at runtime, no generated art, and your files never leave your browser.