As the title suggests, the goal is to “build a delightful town with cheerfully funny animals”, not human beings as usual.
GREE says that the initial version of their newest first-party game (which carries the “beta” label) offers offer 200 different animals, around 300 “houses, businesses, and decorations”, and over 100 different quests.
Animal Days has been teased by GREE since last year, for example at E3 in Los Angeles and at the Tokyo Game Show.
The game is only available as an app on Android at the moment.
Here are a few Animal Days screenshots and a trailer (the video is from last year):