ADVENTUR/CMD behaves in the same way as ScottFree here (i.e. the player isn’t allowed to pick up the KEYs):
(A slightly (but not materially) modified version of my BBC BASIC port of BYTE’s v4.6 Pirate terp also behaves in the same way as ScottFree in this case.)
I’m attaching a copy of the test game data file, which has been converted to TRS-80 .DAT format.
ADVENT.D1.zip (344 Bytes)