Pool of Radiance was my first RPG experience. I already knew what D&D was but I was not prepared for all the immersion. I got into that game so deep I spent hours trying to survive, just to be able to level up. It was so hard and buggy, there was very little hand holding and the quests were very vague. You could pick quests on the city board and just go wandering hoping to solve them (or not, most likely).
At some point, I got stuck and could not go further in the questline. I had to survive a battle with vampires (or wights, can't remember) but they would absorb your LVL with every hit. Then a major bug happened: when two of my characters' level were absorbed passed 0, they went backward to LVL 99. These two characters were multi-class half-elf, one fighter/cleric/mage the other fighter/mage/thief
I just had to survive and flee with one character and revive the dead to have two fully leveled multi-class characters to help me get through the rest of the game. I would never have made it further without these overpowered characters, it was just too hard. After that, I spent hours going through the game every way possible, trying to solve every quest until finally meeting the final boss, which was easy with two super-heroes in my party.
This was my first introduction to power gaming, back in 1988.