Commenter devon has the right idea:

This is how I’m celebrating:

He then linked to Kikoskia’s excellent “Let’s Play” of Serpent Isle from…oh, a while ago now:

Kikoskia’s playthrough features around 25 hours of gameplay and humourous commentary; give it at least a bit of watch if you’ve never checked it out before. What a great way to mark the 20th anniversary of Serpent Isle.