> For the complete documentation index, see [llms.txt](https://g3m.gitbook.io/g3mwiki/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://g3m.gitbook.io/g3mwiki/readme.md).

# Home

G3M is a PyQt6 desktop mod manager for GameMaker games.

Version: 3.3.4 License: GPL-3.0

## Supported built-in games

* **DELTARUNE**
* **DELTARUNEdemo**
* **UNDERTALE**
* **UNDERTALE Yellow**
* **Pizza Tower**
* **Sugary Spire**
* **FRICKBEARS3**

G3M also supports custom single-tab games added through the in-app Game Manager.

## Main functions

* Install mods from GameBanana, links, folders, and archives.
* Manage profiles, mod versions, game snapshots, downloads, blocklist rules, plugins, and themes.
* Apply `.g3mpatch`, `.xdelta`, `.vcdiff`, `.csx`, full DATA files, and Extra files. G3M manages backups and launch state; G3MTool reads and merges DATA inputs.
* Run patch, merge, diff, and inspection commands from Modding Tools.
* Launch games directly, through Steam, or from shortcuts.

## Quick links

| Resource | URL                                                      |
| -------- | -------------------------------------------------------- |
| Discord  | [discord.gg/2MFdvFfD9a](https://discord.gg/2MFdvFfD9a)   |
| Telegram | [t.me/y\_maintg](https://t.me/y_maintg)                  |
| GitHub   | [github.com/y114git/G3M](https://github.com/y114git/G3M) |

## Guides

* [Getting Started](/g3mwiki/getting-started.md)
* [Interface](/g3mwiki/interface/interface.md)
* [Games](/g3mwiki/games/games.md)
* [Mods](/g3mwiki/mods/mods.md)
* [Features](/g3mwiki/features/features.md)
* [Customization](/g3mwiki/customization/customization.md)
* [Advanced](/g3mwiki/advanced/advanced.md)


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