Many of the original titles were later updated but many of these updates were never released to the Atari ST community. These images all have the original Atari ST interpreter but the data/game file has been updated to the most recent version, many of which were never available on the ST.
Also, I have some titles, mostly demos, but also including the five Solid Gold titles with built-in hint system that were never released for the ST in any way. I have made these available by combining original ST interpreters with demo data files in the case of the demos, and the original data files with a custom interpreter in the case of the five Solid Gold titles. I wanted to use an original ST interpreter but the Solid Gold titles use a later version of the v5 interpreter than was ever released for the ST and these do not work properly with the original Atari ST v5 interpreter.