CircumReality is an experimental massively multiplayer online role-playing game (MMORPG) that relies on text-to-speech for both narration and non-player character speech. A game-oriented text-to-speech engine differs significantly from a text-to-speech engine targeted at telephony or mobile devices. This paper discusses some of the differences, such memory and download-size requirements, voice-transformation requirements, voices with personality, licensing fees, and player-created voices.
Bibliographic reference. Rozak, Mike (2008): "Designing a massively multiplayer online role-playing game around text-to-speech", In INTERSPEECH-2008, 2490-2493.