This page is incomplete! You can contribute information using GitHub issues or pull requests.

The Amalgam Scene Specification (ASS) file format is a text-based intermediate representation of level geometry which can be compiled into tag formats using H2 and H3 Tool. It is the successor to JMS for level BSPs, though JMS is still supported past H1.

ASS is exported from 3D editors like Blender and 3ds Max using add-ons or converted from MCC FBX using Tool.