Heos- Terrain Forge

HEOS- TERRAIN FORGE is a pixel-art terrain creation tool designed for indie developers, pixel artists, and procedural generation enthusiasts. It combines a powerful noise engine (Perlin/Simplex) with manual painting and object stamping, allowing you to sculpt islands, archipelagos, mountains, or plains in seconds—then refine every tile by hand with an intuitive workflow. 

You can also start with a blank canvas, import and select your own drawings, and let the generator do its thing—or do it all by hand. 

 KEY FEATURES

• One-Click Procedural Generation Choose from 8 terrain presets (Island, Archipelago, Atoll, Canyon, Mountain, etc.) and adjust noise scale, octaves, and seed. Every map is unique and fully editable.
• Unified Biome System Paint with built-in biomes (grass, sand, water, forest…) or import your own tiles from a spritesheet. Biomes are ordered by thresholds so procedural generation respects your custom palette automatically.
• Object Stamping with Visual Physics Place trees, rocks, flowers, bushes, mushrooms, and any custom sprite. Each object can react to wind (swaying) and cast dynamic shadows based on the sun's position. Adjust scale, pivot, scatter, and size variation per object type.
• Real-Time Wind & Shadows Configure global wind direction, speed, and turbulence. Objects with the "wind" property animate gently. Shadows are calculated from sun angle and elevation, with adjustable opacity.
• Spritesheet Import Drag and drop your sprite sheet (PNG), define tile size, and automatically extract tiles to use as new biomes or stampable objects. Expand your palette without limits!
• Smart Tool Modes Switch between painting biomes, placing objects, smoothing edges, or erasing terrain/objects with one click. The circular brush and overlap control give you total precision.
• Undo/Redo History Full history of up to 30 steps—experiment fearlessly.
• Versatile Export (Full Version) Save your creation as:
  • PNG with transparency (drop directly into your game engine)
  • JSON (tile and object data for custom projects)
  • TMX (Tiled map format, ready for Godot, Unity, or RPG Maker)
• Project Save/Load (Full Version) Save your entire workspace to a JSON file and resume later. Safer and more portable than browser local storage.

 QUICK CONTROLS

Action	Shortcut / Gesture
Paint / Stamp	Left click + drag
Area scatter	Shift + Click
Pan view	Middle / Right click + drag
Zoom	Mouse wheel / Pinch
Pick color/object	Alt + Click on canvas
Cancel stamp mode	ESC
Toggle Biome / Object tool	1 key
Undo / Redo	Ctrl+Z / Ctrl+Y

 FREE HTML DEMO

This page includes a playable HTML demo that runs directly in your browser. The demo includes all editing, generation, and preview features, but export options (PNG, JSON, TMX) and project save/load are disabled. It's perfect for testing the tool, sketching ideas, and deciding if it fits your workflow.

FULL VERSION (PAID)

The full version unlocks:

• ✅ Export to PNG with transparency
• ✅ Export to JSON (map data)
• ✅ Export to TMX (Tiled compatible)
• ✅ Save and load projects (JSON format)