This is the first time I've tried using one of those file hosting sites. Usually game forums have the ability to attach files to posts, apparently you can't do that at this site. If you open the files let me know if it works properly or not.
By the way, my system is win7 64bit, 8GB ram, Nvidia GeForce 240 video card, and intel i5 core 650 @ 3.2 Ghz processor, not that this should affect the saved files.
These are both files from the same game, the top file RKK 01 I saved last week sometime, it's around turn 320/350. I think there were 4/5 AI left in the game at that point. One of these was a "one-town-wonder" which I skipped most of the game since it was zero threat. Two of the others I was at war with and had smashed quite a bit; I think one only had one city left, the other had 3 or 4 cities left.
The second file is about turn 450, about 100 turns after the save above. There are only 2 AI left in the game. Tarth is the strongest and should put up something of a fight. I have most of the tech advances and I've started researching the spell of making. I'm mainly just resting some wounded guys & regenerating mana on some magic users who have used up a lot. I could've smashed Tarth earlier, but I'm just not in a big rush. I'm 100% certain I'll crush them fairly easily. I mainly just wanted to see how the spell of makng works since I've never tried that victory type before. I have at least 2 generations of heirs and you can see for yourself how mega strong they are.
You may want to check out my unit design screens and see how I've designed them, especially archers. The Archer I, II, III and Horse archer I, II, III are designed with varying degrees of heavy crystal usage, the Archer + and ++ was designed specifically to be as stong as possible while using only one crystal, since I usually run out of crystal but still want fairly strong archers. The main difference is that I can typically get a better attack strength using crystal, hence crystal-heavy units are usually better on attack which is obviously important, especially for archers. I also have macemen designs, but frankly I rarely use them since Archers always win the day. Archers vs Macemen is no contest in the game-as-is. I love my horse archer III, but at 1300 bucks and 162 crystal per 8man squad (something like that) I just can't build too many of 'em.
Once my military machine moves out, the whole world will tremble and Tarth will beg for my infinite mercy, muhahahahaha 
http://www.mediafire.com/?15wdq7gbe38ph6a
http://www.mediafire.com/file/15wdq7gbe38ph6a/RKK_02.EleSav
By the way, now that it's popped into my mind: If you peruse the cities & heroes you'll notice that many of the heroes are duplicated. I noticed this last night when I recruited my 3rd Muerthaa (or whatever it is). I went back & checked my cities one-by-one because I though she looked familiar, and sure enough, there were 3 of her !! This was also the game that my Porypheria (heir) was duplicated, and when she is in the same location with her "twin", odd things happened to their mana like suddenly resetting to zero. You'll notice that many of the female heirs have "tight" boots. When they were first made available they only had one mp & "tight boots". I made sure I bought them horses, although "travelling boots" were not on sale in the item shop for some reason for them?
Elemental Forums
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doing so when I had a 'guard' city to the NE of them with over 900 power. So I took teh Kraxis main city, steamrolled about 2/3 of Kraxis's towns in the southwest, then sat back for about 200 turns while Altar and Kraxis got on Parity.