ifwiki: GRIF These games must be played with a GRIF interpreter; see [programming/grif](../../programming/grif). # Castlequest_GRIF.zip tuid: s749vewkgg4wectq Port of Castlequest to GRIF by Scott Bakker. Version 2025.04.30. The original Castlequest (a more direct descendant of which can be found in ) is copyright and written by Michael S. Holtzman and Mark Kershenblatt.