Neverwinter Nights came out in the early 2000s. This game came with a Player Client, a DM Client, and a Toolset so you could script up and make your own modules. This is why it is still has a beating heart today. I did some scripting on the game (from a player's point of view). I also worked on a few modules.

 

Many of the reasons I still have any of these scripts and modules is because of the fantastic people at the Neverwinter Vault, where these scripts are still held to this day.