u/Hlavada

Most of the times, my AI enemies didnt even leave starting zone, having almost no army, despite being set to HARD AI. I used the Enemy strenght at 200% (neutral stacks), and my theory is, that AI just couldnt deal with them effectively, building army, despite being "HARD".

Last 3 maps I used Enemy strenght at 100% and AI is raiding me, as I would expect it.

So if you are having issues with AI being passive in their zone, consider reducing power of neutral stacks.

(I have limited games to have tested this on, so I might be wrong, but so far seems like it was the issue for me)