a small number of locations, many of them containing nothing but scenery and background.
an NPC who follows you around and can be asked about things, and whose presence is necessary in certain situations.
a small number of objects to be collected to solve a handful of puzzles.
The Temple is very consistent with commercial IF in the late 1980s. it's a short game, with a couple of "read the author's mind" moments (it would never have occurred to me that (Spoiler - click to show)the translated book changes the descriptions of other items when carried, instead of it being an object i could CONSULT or READ) and lucky coincidences, but nothing truly awful. the prose is better than average, and i got at least moderately attached to the NPC by the end of the game.
a good way to spend a couple of hours. with a little polish it would be a classic short game.