Here is the full list of all 29 URBO achievements.
Unlock all sets of buildings
Make 20 x3 combos
Build 20 buildings of level 8 in all surroundings in total
First 4x combo of merges
First merge of 9 buildings
Build a town in each URBO surroundings
Build 10 buildings of level 8 in all surroundings in total
Make 10 x3 combos
Reach 100 000 population in all surroundings in total
Build 5 buildings of level 8 in all surroundings in total
First activation of the tower
Unlock VALLEY
Unlock all surroundings
Reach 50 000 population in all surroundings in total
Unlock ARCHIPELAGO
First ship voyage
Unlock WATERFALL
First entry to photomode
First 8 level building
Make 5 x3 combos
Reach 20 000 population in all surroundings in total
Discover all islands at any multi-island surroundings
Get 21 sets of cards in total
First 7 level building
Reach 5 000 population in all surroundings in total
First island completed
First 6 level building
First 5 level building
First building built