@@ -116,35 +116,6 @@ Most types of add-on content can be down
Add-on content can also be installed manually, but that's more complicated; the [OpenTTD wiki](https://wiki.openttd.org/) may offer help with that, or the [OpenTTD directory structure guide](./docs/directory_structure.md).
### 1.5.1) AI opponents
OpenTTD comes without AI opponents, so if you want to play with AIs you have to download them.
The easiest way is via the 'Check Online Content' button in the main menu.
You can select some AIs that you think are compatible with your playing style.
AI help and discussions may also be found in the [AI section of the forum](https://www.tt-forums.net/viewforum.php?f=65).
### 1.5.2) Scenarios and height maps
Scenarios and heightmaps can be added via the 'Check Online Content' button in the main menu.
### 1.5.3) NewGRFs
A wide range of add-content is available as NewGRFs, including vehicles, industries, stations, landscape objects, town names and more.
NewGRFs can be added via the 'Check Online Content' button in the main menu.
See also the wiki [guide to NewGRFs](https://wiki.openttd.org/en/Manual/NewGRF) and [the forum graphics development section](https://www.tt-forums.net/viewforum.php?f=66).
### 1.5.4) Game scripts
Game scripts can provide additional challenges or changes to the standard OpenTTD gameplay, for example setting transport goals, or changing town growth behaviour.
Game scripts can be added via the 'Check Online Content' button in the main menu.
See also the wiki [guide to game scripts](https://wiki.openttd.org/en/Manual/Game%20script) and [the forum graphics game script section](https://www.tt-forums.net/viewforum.php?f=65).