Up Front: Derek Johnson (Artist).
1st Row (left to right): Dennis Presnell (Artist), Scott
Everts (Artist), Tim Donley (Lead Artist), Jason Suinn (Technical
Designer), Chris Avellone (Lead Designer), Ken Lee (Project Director),
Feargus Urquhart (BIS Director), Colin McComb (Designer/Writer).
2nd Row: Yuki Furumi (Programmer, back a bit), Jake Devore (Scriptor), Adam Heine (Scriptor), Scott Warner (Designer), Kris Giampa, Damien Evans, Brian Menze (Artist), Dan Spitzley (Lead Programmer).
Back Row: Kihan Pak, Fred Hatch (Voice overs and Localizations), John Deily (Designer), Dave Hendee (Technical Designer), Dave Maldanado (Designer), Rob Holloway (Programmer), Eric Campanella (Artist), Jim Gardner (Programmer).
Not shown: Chris Jones (Artist), Aaron Meyers (Artist), Nick Kesting (Scriptor), Charles Deenen (Audio Director), Greg "Big Tuna" Peterson (Marketing Head), Greg Bauman (Marketing), Chris Border (Voice overs), Gloria (Sound), Ann Scibelli (Monster Sounds), Dave Farmer (Spell Sounds), Al Nelson (Sound), Shannon Miller (Sound), Guido Henkel (Initial Project Director).
Here are the system requirements of the game, quite low actually:
Interested in purchasing the game? You can download Planescape: Torment from GOG.
Similar Games? To be honest, only Ultima VII could be similar to this game, but only close. But, you may be interested in these games which have received high ratings. Common feature is, they use the Bioware Engine.