| January 2018 | ||
| 08/01/18 | The alliance O S was founded. | |
Founding members::  Kalleklovn, A-team, Footloose11,  kim1992, istapp and Norrast. | ||
| Leaving of:A-team. | ||
 The alliance reaches a population more than 100. | ||
| 09/01/18 | Joining of:Lillsnorre. | |
| 11/01/18 | Joining of:antun_1993. | |
| 12/01/18 | The alliance reaches a population more than 1,000. | |
| 15/01/18 | Joining of:vide, passo2 and Yato. | |
| 23/01/18 | Deletion of:vide. | |
| February 2018 | ||
| 03/02/18 | The alliance reaches a population more than 5,000. | |
| 05/02/18 | Leaving of:antun_1993. | |
| 16/02/18 | Leaving of:Yato. | |
| 18/02/18 | Joining of:Sauron. | |
| 22/02/18 | The alliance reaches a population more than 10,000. | |
| March 2018 | ||
| 27/03/18 | Joining of:Blues. | |
| 30/03/18 | Deletion of:Lillsnorre. | |
| April 2018 | ||
| 06/04/18 | Leaving of:kim1992 istapp passo2 Sauron and Blues. | |
| 07/04/18 | The alliance O S was canceled. | |