Planescape: Torment is a 1999 role-playing video game developed by Black Isle Studios and published by Interplay Entertainment for Windows. The game takes place in locations from the multiverse of Planescape, a Dungeons & Dragons (D&D) fantasy campaign setting. The game's engine is a modified version of the Infinity Engine, which was used previously for BioWare's Baldur's Gate, an earlier D&D game set in the Forgotten Realms.

Planescape: Torment is primarily story-driven, with combat taking a secondary role. The protagonist, known as The Nameless One, is an immortal man who forgets everything if killed. The game focuses on his journey through the city of Sigil and other planes to reclaim his memories of previous lives, and to discover why he was made immortal in the first place. Several characters in the game may join The Nameless One on his journey; most of these characters have encountered him in the past or have been influenced by his actions in some way.

The game was not a commercial success, but it received critical acclaim and has since become a cult classic, claimed by video game journalists to be the best role-playing video game of 1999. It was lauded for its immersive dialogue, for the dark and relatively obscure Planescape setting, and for the protagonist's unique persona, which shirked many characteristics of traditional role-playing games. It is commonly cited as one of the greatest video games of all time. An enhanced version for modern platforms was made by Beamdog and released for Windows, Linux, macOS, Android, and iOS in April 2017 and for Nintendo Switch, PlayStation 4, and Xbox One in October 2019.

Gameplay

thumb|left|alt=Screenshot of the game, with a heads up display.|The Mortuary room in which the game opens; visible are two player characters, a zombie, the bottom-menu, and the radial-actions menu.

Planescape: Torment is built on BioWare's Infinity Engine, which presents the player with a pre-rendered world in an isometric perspective in which player characters are controlled. The game's role-playing ruleset is based on that of Advanced Dungeons & Dragons 2nd Edition. Items and spells may be employed through hotkeys, quick slots, or a radial menu.

The game begins with character creation, where the player assigns attribute points such as strength, intelligence, and charisma to The Nameless One. that connects the planes with each other via a series of portals. Every time he dies, another person in the multiverse dies to fuel his resurrection. Upon rebirth, The Nameless One has little to no recollection of his past life, and often with completely different personality than before. When the game starts, The Nameless One wakes in a mortuary as a result of his latest death. He then sets out on a quest to discover how he died and why he is immortal, also hoping that the adventure will help him regain memories of his past incarnations.

During his quest, The Nameless One meets several characters who can join him as companions: Morte, Annah-of-the-Shadows, Dak'kon, Ignus, Nordom, Fall-From-Grace, and Vhailor. These playable characters can also interact with the Nameless One to further the game's plot. Morte is a cynical floating skull originally from Baator's Pillar of Skulls, a grotesque entity composed of the screaming heads of individuals who dishonestly advised others in their lifetime. He is introduced at the game's beginning in the mortuary. The Nameless One meets Annah-of-the-Shadows, a young and brash tiefling rogue,

Plot

The game begins when The Nameless One wakes up in a mortuary. Initially, the game was to be called Last Rites, and they described the game as "avant-garde" fantasy to distinguish it from high fantasy. The document also contained concept artwork for characters and areas of the game. McComb, one of the designers of the overall Planescape setting, joined the Torment project after his game fell through.