????

qft

Too bad there is actaully a preium version... Tempting...

I missed this. Let me check.

It's not loading for me atm. Something is wrong.

Gemcraft?
Better:
Defender!
And if you search the creator of this game, you'll find another more sophisticated campaign version, but not based on UO. You can make your own maps with the other version though. Oh it's Protector III that has the map editor. Protector IV is great, haven't spent much time with Protector IV.V yet. The Protector games are on his profile there. Fav is Defender, though.

http://home.comcast.net/~cilution/

Made that back when WoW was in Beta. Pro Flash game right there.