Dev.to
7/17/2026

The original title is "Game Builder Tutorial 3: Build a First-Person 3D Dungeon"
Original: Game Builder Tutorial 3: Build a First-Person 3D Dungeon
Short summary
This tutorial walks through building a first-person 3D dungeon game using Codename One's Game Builder, extending the data-driven pattern from earlier 2D tutorials. It covers 3D mesh assets via glTF files, dungeon play-style camera and collision, terrain wall brushes for seamless mazes, and spawn placement. The same authoring workflow applies but runtime rendering switches to GPU models under a perspective camera with lighting.
- •Build a 3D first-person dungeon game using Codename One Game Builder
- •3D assets use TYPE_MESH with glTF/.glb files instead of sprites
- •Dungeon play style provides first-person walker with wall collision automatically
Generated with AI, which can make mistakes.
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