I noticed you post this one on the El Sallia forums, so I was surprised to see you post it here, since it's so dead around here.
I'm still around though! And maybe LYS is.
I've played a little of Wesnoth, but that was a few years ago – I'm sure it's far better now than it was when I tried it, so I'll have to check it out again. I think on CoES you said there was a Three Kingdoms themed mod/campaign?
The mention of free games reminds me though – my favorite indie game, The Spirit Engine 2, was just made freeware a couple weeks ago, and it's surely worth a try. http://www.thespiritengine.com/tse2-download.php