Stigma (letter) sigma form ς never occurs inside a word and is never used as a numeral either. Uppercase forms of stigma as a numeral (Ϛ) are rare in practice; when they occur, they can often be confused with uppercase forms of another numeral symbol, koppa (Ϟϟ), which stands for 90. Stigma is encoded in Unicode as "Greek letter stigma" U+03DA (Ϛ) and "Greek small letter stigma" U+03DB (ϛ). Stigma (letter) Stigma (ϛ) is a ligature of the Greek letters sigma (Σ) and tau (Τ), which was used in writing Greek between the Middle Ages and the 19th century. It is also
Torque (game engine) (non-skinned meshes worked), and the 3D rigid-body physics suffered from several issues. The Torque engine and its derivatives have been used in the development of a variety of games, especially among independent video game developers. Commercial titles developed using the Torque engine include "BoneTown", "Blockland", "Marble Blast Gold", "Minions of Mirth", "TubeTwist", "Ultimate Duck Hunting", "", "ThinkTanks", "The Destiny of Zorro", "Penny Arcade Adventures" and indie video games "The Age of Decadence", "BeamNG.drive", "The Cat and the Coup", "Dead State", "Frozen Synapse", and "S.P.A.Z.". Torque (game engine) Torque Game Engine, or TGE, is an open-source cross-platform 3D computer game engine,