Does anyone know of a good engine for creating RPG systems? I'm on a very low budget, and want a considerable amount of flexibility, (which is why I'm not too fond of using engines like Source, with no real built-in RPG support, even though I am aware it can be modded for RPGs). I'm currently unable to find anything that really suits my needs within my current price range. I currently have resorted to writing my own engine, but that may extend the development time for my ideas quite a bit longer.