: Quest Soft Player (QSP) is a classic text-based game engine; "1.9" may refer to specific older versions of its library or player utilities. or a specific game's version 1.9 QSP - IFWiki
If you want to create your own game, you need to understand the core scripting logic. QSP is rather than event-based. qsp 1.9
A QSP 1.9 model is a system of ordinary differential equations (ODEs): : Quest Soft Player (QSP) is a classic