Thanks Arundel. A club member and I built the pyramid from Hirst Arts blocks with styrofoam sheet as filler. He used a bunch of leftover blocks to make the ruin pieces. I blatantly stole the tall tree design from a post here. I need to repaint them some time, they are too brown and need to be much darker.
As for FiveCore, I enjoyed it a lot. It is designed for five figures on each side, though it's easy to play with more if you want. The mechanics are simple, which makes it good for con and group games where you have to teach everyone how to play. Using cover and terrain is important; you can't game the rules much, so you have to game the table instead.
It assumes that "a soldier is a soldier" and there isn't much difference between your basic infantryman on any side of a conflict. If you prefer lots of detailed weapon stats, this isn't the game for you.