fun but alot of issues
some things were overly difficult for bad reasons, the quick guys in level 2 at 1:41 left ran through my horde of 9 level 5 archer towers (on each road) all under ballista support and they got minor scratches because
-no good high rate of fire (machine gun-ish) tower
-fast people have ridiculously high armor
-you need resources to repair the castle, while you'll ALWYS be in a shortage unless your specifically hoarding resources just for repairs for a LONG while, rendering farms, mines, and training centers useless
-the buildings (farms, mines, and training centers) doing very little for the long time it takes for the necessary resources