Craft 3D/2D/2.5D tile-based levels with ease using GameObjects, Tilemaps, or custom solutions. Enjoy built-in features like collision handling, height variations, basic controllers, and sub-randomizers, all powered by the Drunkard Walk procedural generation algorithm.

Documentation: nappin.dev

Support: hey@nappin.dev

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How do I use it?

Just install the package and you’re ready to go.
GridForge works as a plug-and-play solution for quick results, while also providing a fully extensible codebase for developers who want to customize or build on top of the generator. Whether you want instant levels or deep control, the workflow is streamlined.

What's included?

GridForge ships with everything you need to start generating dungeons right away:

Core Content

The Core Generator script with seed support for reproducible results
Multiple demo character controllers (2D, 3D, MouseLook…)
Utility scripts to randomize generations, spawn players, and place targets
A prefab folder with reusable assets and VFX

Sample Scenes

6 example scenes that demonstrate different generation styles
A guided setup to help you experiment and find the best parameters
Recommended entry point: (Sc)Generator scene for first-time users

Main Features

Generate dungeon layouts with walls and floors (unoriented or oriented)
Apply customizable patterns to floors and walls (checker, noise, lines…)
Scatter random tiles on floors and walls for extra detail
Enable tile orientation to add variety and realism
Automatically draw corners and edges for consistent layouts
Switch between GameObject generation, Tilemap generation, or custom workflows
Manually override tiles for complete control when needed
Built-in collision solutions for both 2D and 3D setups
Generate multiple levels simultaneously within one scene
Customize tile size, level size, and fill percentage
A sample GameManager to position players and targets
Additional randomizer scripts for sub-variation and detail control
A set of ready-made assets you can reuse directly in your own projects

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» FAQ:

Can the generation be done at runtime? Yes, the generation can be done at runtime whenever you want. For testing purposes you can also generate you level in editor pressing the "Rigenerate Level" button or using the shortcut CTRL + G.
Do I need to be a coder? No, the asset allows you to simply edit the controller to your need (check the documentation below to know the details). If you want to add new features a intermediate level of programming is required and of course I'm always available to assist you via email.
Can it be used on mobile? Of course, the cost of the generation is quite cheap so it can be used on mobile as well.
Can I use gravity in my 2D generation? Yes you can, the generator allows you to rotate che level however you like. You can easily rotate it vertically and use gravity!

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Need help or guidance with the tool? Reach out anytime at hey@nappin.dev

Did you enjoy the tool? We’d really appreciate a positive rating—it helps us improve and keep creating great tools!

nappin.dev

GridForge - Procedural Level Generator