-Estimated trophy difficulty: 1/10
-Overall number of trophies: 13 (9 , 3 , 1 )
-Missable: 1 (The Old Fashioned Way)
-Approx time to 100%: 6-8 hours
This is a very simple city building game that lets you play at your own pace. There's no time limit, no challenge, no anything, so you don't have to worry about missing any trophies (except for one). I was having trouble figuring out how to advance, so I thought I'd put up a little guide to help.
Just play through the game at your own pace, and make sure you don't build the Dragon Gate until you have purified the entire island (you will get a cutscene telling you you have done so). Once you get this cutscene, go ahead and build the Dragon Gate and True Dragon Gate and you're done!
[PS3T Would Like to Thank Akari for this Roadmap]