The first one definitely had RTS elements in it. And I didn't know it was free.
EDIT: Well whadayaknow, it's freeware and runs on Linux.
http://emucation.com/forum/post.php?thread=2060
http://www.youtube.com/watch?v=9mOfbqtoyu8
Obviously Savage 2 looks a lot prettier, but I dunno how you could go wrong with
free.