This project began in 2023, when Ryan Carpenter was designing an algorithm to procedurally generate a 3D dungeon for an FPS he was working on at university. While the game itself never went anywhere, Ryan revisited the idea in 2024, continued developing it, and after two years of work, he finally presented a working demo.

Labyrinth Procedural Generator draws inspiration from the level layouts of games like The Binding of Isaac and Enter the Gungeon, as well as the interconnected worlds of Zelda games and Dark Souls. It can generate thousands of rooms instantly, including boss rooms, shops, and item rooms, while maintaining fully contiguous maps. The engine also gives developers control over the layout and progression style.

As Ryan explains, he wants this algorithm to generate dungeons that feel structured like an RPG, while still offering the randomness and replayability of a roguelike.

Blueprints are the backbone of the algorithm and are essential for generating any rooms. They consist of single-cell markers on a grid that tell the algorithm where a room can potentially spawn. Once the blueprints have been generated, a second pass parses them and creates rooms according to a predefined set of rules.

The algorithm was developed in Unity 3D, but can be rewritten to work with any game engine. Ryan has several more features planned for the project, including turning it into a downloadable Unity package that others can use.

For now, you can read a detailed blog post about the Labyrinth Procedural Generator and try out the web demo here.

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