Descent to Undermountain is a role-playing video game developed and published by Interplay in 1998. Based on the Dungeons & Dragons setting of Undermountain in the Forgotten Realms, it casts the player as an adventurer out to explore the treasure-filled recesses of the Undermountain dungeon. The "Descent" part of the name refers to the game's use of the 3D rendering engine from the 1995 game Descent.