Anvil is a free, open-source level design add-on for Blender 5.1+, inspired by TrenchBroom. It simplifies creating box-based levels with automatic UV unwrapping and texture application. The tool streamlines workflows for building architectural elements like windows, doorways, and roofs, with fully customizable keybindings. Levels can be exported to Godot, Unreal, Unity, and other engines.

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