* [[Polyobjects]] with additional effects allowing to create moving platforms. They can now render flats, carry players standing on them, follow waypoints, and can have sector specials applied to them.
* [[ANIMDEFS]]
* {{wp|[[Lua}} ]] scripting
* Custom "[[SOC]]" (Sonic Object Configuration) [[content definition language]]
* Partial support for [[ZDoom]]'s [[zdoom:TEXTURES|TEXTURES]] lump