David Malmberg created the Adventure Game Toolkit interactive fiction toolkit, as well as text adventure games including The Casebook of Sherlock Holmes, Crusade Adventure, Hurry! Hurry! Hurry!, and The World's Hardest Adventure.
He also ported several text adventure games to AGT including African Adventure, Betty Carlson's Big Date, Adventure, Dog Star Adventure, The Elf's Christmas Adventure, Odieus's Quest for the Magic Flingshot, Paranoia, PORK II: The Great Underground Sewer System, and The Squynchia Adventure.