Szass Tam is a powerful lich in the fictional world of Dungeons & Dragons, specifically in the region of Thay. He is known for making deals with dark gods and is often described as a foul, wretched creature or a foul lich. Players encounter references to Szass Tam in the game Baldurs Gate 3, where they are prompted to respond to questions about him when interacting with an ornate mirror. The responses provided by the players in the game include "Szass Tam is a foul, wretched creature" or "A foul lich. May he die a thousand more deaths". These interactions are part of the games narrative and contribute to the immersive experience for players.