Each map contains 30k food, 25k wood, 15k gold, 15k XP, 70-90 Villagers, 15 miners, 60-90 military units and mercenaries.
North Great Lakes contains ships. North Borneo has ships and extra trading posts.
Simply Select FUN Maps to launch one of them, or choose from the FUN Maps list to choose specific.
Unknown contains many mercenaries, Lrg Saguenay contains ships and troops, Indochina has fixed bugs and ships and army, California contains 6 more trading posts and ships.
FUN South Texas has better placement; players start with 2 town centers, 80 villagers, 15-18 Miners, and 25 Janissaries and 30 Rodeleros. 5 Trading Posts per player, up from two. Fun Sonora is smaller, and South Saguenay is also smaller.
North Sonora contains 9 trading posts, is smaller, and North Borneo is fixed. Rich Nubia is a new map with resources in plenty.
Goes into My Games My Documents Age of Empires III RM3.
All are custom maps so you have to click on custom maps to try them.