# Game Builder Tutorial 3: Build a First-Person 3D Dungeon

DevFeed: [Game Builder Tutorial 3: Build a First-Person 3D Dungeon](<https://devfeed.tech/articles/game-builder-tutorial-3-build-a-first-person-3d-dungeon-19310.md>)

Original publisher: [Read original article](<https://www.codenameone.com/blog/game-builder-3d-dungeon/>)

Author: Shai Almog

Published: 2026-07-09T00:00:00Z

Content type: tutorial

Language: en

Sources: [CodeName One](<https://devfeed.tech/sources/codename-one.md>)

Topics: [Tutorial](<https://devfeed.tech/topics/tutorial.md>), [3D](<https://devfeed.tech/topics/3d.md>), [Code](<https://devfeed.tech/topics/code.md>), [GPU](<https://devfeed.tech/topics/gpu.md>)

Tags: [3d](<https://devfeed.tech/tags/3d.md>), [blender](<https://devfeed.tech/tags/blender.md>), [build](<https://devfeed.tech/tags/build.md>), [camera](<https://devfeed.tech/tags/camera.md>), [code](<https://devfeed.tech/tags/code.md>), [games](<https://devfeed.tech/tags/games.md>), [gltf](<https://devfeed.tech/tags/gltf.md>), [gpu](<https://devfeed.tech/tags/gpu.md>), [lighting](<https://devfeed.tech/tags/lighting.md>), [map](<https://devfeed.tech/tags/map.md>), [mesh](<https://devfeed.tech/tags/mesh.md>), [model](<https://devfeed.tech/tags/model.md>), [tutorial](<https://devfeed.tech/tags/tutorial.md>)

## AI overview

A tutorial for building a first-person 3D dungeon with Codename One Game Builder. It covers 3D scene setup, genre-specific play styles, mesh-based assets, lighting, collision, and importing glTF models.

## Source excerpt

A code-included walkthrough that builds a first-person 3D dungeon with the Codename One Game Builder -- terrain, walls, a spawn, the companion code, and streaming large worlds.