I guess there are really 4 main ones ... the "blow up the planet one" you already experienced and then the other (potentially successful) path which leads you to a choice from 3 options (one of which is not very successful ... you might as well have blown up the planet
).Then there is the end-end game, where all of your characters have a little something to say about how things turned out ... if you count all the possible variations of personalities (and add in 2 RPCs to hear what they might say) ... I think the number of variations is a big number
Something like 6 * 36 + 5 * 35 + 4 * 34 .... 1 * 31 + 2 * <number of RPCs that have something to say> + 1 * <same number -1> .... something like 750 or so different combinations.
I don't recall if you get the ending coments from your characters in the "not so great choice" ending, or if it is a different comment. Assuming you only get the comments in the other 2 choices, that would make the total about 1502 different endings.
Tools for Wizardry(r) 7