Comment by PetitPrince

I'm pouring one out for the developers of Neverwinter Nights, one of the most defining moment of my childhood / teenage years. Its toolset was surprisingly approachable and you could make complex adventures with relative ease (tons of wizards - the assistant kind) ; one of the most acclaimed player created adventure series (The Bustard of Kosigan) was created by a high school history teacher. It had a c inspired scripting language powering it, and player did jerry-rig small MMO ("persistent world" is the correct term) out of it.