> For the complete documentation index, see [llms.txt](https://thebitcave.gitbook.io/ai-brain-extensions-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://thebitcave.gitbook.io/ai-brain-extensions-docs/master.md). # Introduction ## Welcome! Welcome to the *AIBrain Extensions* for [MoreMountains](https://moremountains.com/) Unity3D engines (i.e.: [Corgi](https://assetstore.unity.com/packages/templates/systems/corgi-engine-2d-2-5d-platformer-26617?aid=1011lHJn) and [TopDown](https://assetstore.unity.com/packages/templates/systems/topdown-engine-89636?aid=1011lHJn)) documentation. {% hint style="info" %} This project is maintained by [Marco Secchi](http://marcosecchi.it/) and it is free and open-source. If you find it useful, please consider supporting it with a[ one-time donation on Paypal](https://www.paypal.me/secchimarco). {% endhint %} The project includes a set of tools that will (hopefully) ease your workflow with the AIBrain system. ## What's Corgi Engine? The Corgi Engine is a Unity 2D + 2.5D Platformer Kit, [available on the Unity Asset Store](https://assetstore.unity.com/packages/templates/systems/corgi-engine-2d-2-5d-platformer-26617?aid=1011lHJn). If you want to know more about it, please read the [official documentation](https://corgi-engine-docs.moremountains.com/index.html). Alternatively, for a quick introduction, you can check the following feature video: {% embed url="" %} ## What's TopDown Engine? The TopDown Engine is a complete solution for top-down games, [available on the Unity Asset Store](https://assetstore.unity.com/packages/templates/systems/topdown-engine-89636?aid=1011lHJn). Official documentation can be found [on MoreMountains website](https://topdown-engine-docs.moremountains.com/). For a quick feature walkthrough, please check the video below: {% embed url="" %}