custom things

[Mudbill]

Basically you can get them anywhere, but the above linked forum is dedicated to such. You can also make your own if you know how to. If you end up with just the model files (.dae for model + texture files, preferrably .dds), you can use it in Amnesia if exported correctly. All you must do is open the .dae file in the Model Viewer, import the mesh in the Model Editor, edit its settings, save it as an .ent file, then load that .ent file in the Level Editor.

Keep in mind that any custom entities you have must be placed in your entities folder when you're using them in the Level Editor. When you run the game, however, they can be located in your custom story folder.

For example:
AmnesiaRootFolder/entities/custom/mymodel/mymodel.ent
AmnesiaRootFolder/custom_stories/mystory/entities/mymodel/mymodel.ent

I suggest moving the files when you export your story.