Perlenspiel is a gameclavier

Brian Moriarty [1] was responsible for a bunch of the really great Infocom, Lucasfilm/LucasArts, and Rocketstar games. [2]

[1]

https://en.wikipedia.org/wiki/Brian_Moriarty

[2]

ANALOG Computing - Adventure in the 5th Dimension (1983) - Crash Dive! (1984) - Tachyon (1985, unpublished)

Infocom - Wishbringer[6] (1985) - Trinity (1986) - Beyond Zork (1987) - Timesink (unpublished)

Lucasfilm Games / LucasArts Entertainment[edit] - Loom (1990) - Forge (pitch only) - The Fold (pitch only) - Young Indiana Jones at the World's Fair (unpublished) - The Dig (1995)

Rocket Science Games[edit] - Loadstar: The Legend Of Tully Bodine (1994) - Credited for "interactive design."