Here is the full list of all 10 URBO: Dream One achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
First island completed
First 4x combo of merges
First entry to photomode
First 8 level building
First merge of 9 buildings
Get 21 sets of cards in total
First 7 level building
First 6 level building
First 5 level building
First activation of the tower