This is a remake of Spiderweb Software's Avernum 1, itself a remake of Exile: Escape from the Pit, which has its own thread. There are three game-ending quests: finishing any one of them will give you congratulatory text, and finishing all three will give you more. All three quests, with the exception of choosing to leave Avernum at the end of the "Escape the Underworld" quest (you can also choose to stay) will restore control after the congratulatory message. I'm trying for all endings. Anyone else interested? Please help. Thanks!
I didn't find the right solution from the Internet.