# Core Concepts 

This documentation cover more over-arching concepts of Evennia, often involving many [Core Components](../Components/Components-Overview.md) acting together.

## General concepts

```{toctree}
:maxdepth: 2

Async-Process.md
Soft-Code.md
Using-MUX-as-a-Standard.md
Messagepath.md
OOB.md

```

## Access 

```{toctree}
:maxdepth: 2

Multisession-modes.md
Building-Permissions.md
Guest-Logins.md
Banning.md

```

## Extending the Server 

```{toctree}
:maxdepth: 2

Custom-Protocols.md
Bootstrap-&-Evennia.md
New-Models.md
Zones.md

```

## Text processing
```{toctree}
:maxdepth: 2

Internationalization.md
Text-Encodings.md
TextTags.md
Change-Messages-Per-Receiver.md
Clickable-Links.md
Colors.md

```


## Web features
```{toctree}
:maxdepth: 2

Web-Features.md
```