how about

"Virtual Villagers A villagers life"
on nintendo ds you can become a villager and build, rersearch,and forage and you have puzzles like PC virtual villagers except you play a game to get percentage done on a building site, gain tech points, and gain food

research could have a maze game

building- has a game like below
B=broken wood W= good wood

BBBWB
BBBBB
BBBBB
play five rounds to get 1 percent of the hut done

farming like above except with food and only 2 rounds

you can customize the village the way you want it

it can have wi-fi so you can help other people or just check out there village

like the idea?