2 KycoK_3a6opa
wolves, birds, critters, a Citadel, and a Castle are essential for a Stronghold in the first week; I won't argue with that. You can also add a Guildhall or a Market if needed.
Ogres are decent meat that I take to Utopia; an extra unit is always helpful. I choose based on the number of available spawns of each type.
I can't imagine how rich the resource spawn or the player's skills (which would allow them to gather/earn enough gold) would have to be to upgrade critters to level 121.