| April 2018 | ||
| 17/04/18 | The alliance SEA was founded. | |
Founding members::  Mik98 and KiddingMe. | ||
 The alliance reaches a population more than 100. | ||
| 18/04/18 | Joining of:Knot13 and iceanddark. | |
| 19/04/18 | The alliance reaches a population more than 1,000. | |
| 23/04/18 | Joining of:Bombastický 123. | |
| 24/04/18 | Joining of:febri23. | |
| 25/04/18 | Joining of:sagun. | |
| May 2018 | ||
| 18/05/18 | Leaving of:iceanddark. | |
| June 2018 | ||
| 19/06/18 | Deletion of:KiddingMe. | |
| 23/06/18 | Deletion of:sagun. | |
| 24/06/18 | Leaving of:Knot13. | |
| 27/06/18 | Leaving of:febri23. | |
| Deletion of:Bombastický 123. | ||
| July 2018 | ||
| 07/07/18 | Deletion of:Mik98. | |
| The alliance SEA was canceled. | ||