I gather that Fantasy Rules! is an element-based mass-battle game similar to Hordes of the Things. I've never seen the rules, but from reading reviews, it seems to take HotT as its starting point, but uses a d10 instead of a d6 to add more "granularity". Basing, I gather, is in square elements with 60mm edges (so, two or three HotT elements used together, depending on troop type).
As a HotT enthusiast, I'm intrigued by what I've read and may pick these up.