You can enter the achievements system by clicking this icon under the avatar: 
Achievements give you points but you can also get gems or other rewards.
The maximum number achievements points to gain: 23.425
Achievements are divided into several categories:
The total value of rewards from all achievements: 4.901 
, 1850 
, 1700 
, 3350 
EVENT ACHIEVEMENTS
Points do not count towards the rest of the achievements
Easter
Halloween
Christmas
Football
Valentines
AnniversaryHIDDEN ACHIEVEMENTS
Achievements appear after their capture
General – 
Home Island
| Name | Appearance | Quest | Points | Reward |
| Mass Construction |  |
Have 1 temporary building queue slot |  |
– |
| Builders Boon |  |
Have 1 Permanent Build Queue Slot |  |
– |
| Infrastructure |  |
Build 10 km of Roads on your island (500 segments) |  |
– |
| Hoarder |  |
Have 100 non- specialist items in the star menu |  |
– |
Militray – 
Generals
| Name | Appearance | Quest | Points | Reward |
| Pathfinder |  |
Generals travelled more than 100 hours by sea | |
– |
| The Stranger |  |
Own 1 event special general in your star menu | |
– |
Military – 
Troops
| Name | Appearance | Quest | Points | Reward |
| Undertaker |  |
Loss a total of .1000 recruits in battles | |
– |
Economy – 
Buildings
| Name | Appearance | Quest | Points | Reward |
| Wonderland |  |
Build 100 decorative Buildings on your Island | |
– |
| Celebration |  |
Build 20 event related decorations on the map | |
– |