TSR's The Adventures of Indiana Jones came out in 1984. Three years later TSR produced the total revamp of Top Secret with Top Secret/S.I. It appears that a lot of the fundamental system from the Indiana Jones game formed the base of the new Top Secret/S.I. game. Where can I find an article or reference to how compatible the two systems may be?
There's very little out there about this ancient game. However, this discussion may suggest some similarities: