> For the complete documentation index, see [llms.txt](https://gtfo-modding.gitbook.io/wiki/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gtfo-modding.gitbook.io/wiki/guides/external-guides.md).

# External Guides

## [Geomorph sheet](https://docs.google.com/document/d/1iSYUASlQSaP6l7PD3HszsXSAxJ-wb8MAVwYxb9xW92c/edit)

Partly an explanation on how level generation works, mostly a list of all geomorphs and what they look like.

## [Weapon guide](https://docs.google.com/document/d/1vnMhPE5eB0xHsHEETj7XGD_f8hyjYRoweNfqpdeNDxQ/edit)

Explains most things about how weapons work and how to make them - for archival purposes.

**This has been transcribed and updated, as the** [**Creating Custom Weapons**](/wiki/guides/creating-custom-weapons.md) **guide.**

## [Datablock (level layout) editor](https://gtfo-modding.github.io/DatablockEditor/)

A way to make level layout blocks online instead of working with JSON.

## [Unity setup](https://docs.google.com/document/d/1ZsEVyd81Rqk3VF5xYyQa_g56glqqM5qJk2oFmX_jgts/edit)

Mostly focused on how to setup unity for making geomorphs, but works for datamining unity assets and making other things in unity as well.

Major update soon.

## [OriginalDataBlocks (TypeList)](https://github.com/UntiIted/OriginalDataBlocks)

Stores all datablocks and their type information as well as enums. Can be used to view all changes to datablocks starting from mid-R4.