The commercial release of Castledown includes 8 cuts with both a proportional family (from Regular to Heavy with corresponding Fun Italic and Dotted cuts), as well as a Cursive script variant.

Castledown proportional family (Regular to Heavy including Fun versions) comes with Latin-A extended. Castledown Cursive variant currently has Latin-A support but will be extended to include Latin-A extended at a later date. It is supplied in OpenType (.OTF) format.