| June 2015 |
| 23/06/15 | The alliance NghtWtch (today: XC) was founded. |
| Founding members::  LordSnow and Help. |
|  The alliance reaches a population more than 100. |
|
| 24/06/15 | Joining of:Reepicheep, rhino, TARZAN, BURNING, ivandi12, fixwienix, Corvus, rye, Stormfang, RIP TiDeZ, nangthanh, nightx and nhsedseraVilla. |
| Leaving of:nightx. |
| The alliance reaches a population more than 1,000. |
|
| 25/06/15 | Joining of:accelerator, TEA, Mahalac, Apex Destroyer, kiarash and chunyuen504. |
|
| 26/06/15 | Joining of:Shelltown, zzyzx, g8y3e, LOPETEGUI and Florian1609sDo. |
| Leaving of:TARZAN ivandi12 Corvus kiarash zzyzx and g8y3e. |
|
| 27/06/15 | Joining of:foksy2, excalibur and PURErage. |
| Leaving of:LordSnow accelerator TEA LOPETEGUI and foksy2. |
|
| 28/06/15 | The alliance is now known as XC. |
| Joining of:VeiOm, Amu, artas2, Astraden and Luman. |
| Leaving of:Shelltown. |
|
| 29/06/15 | Joining of:schadow, The Godfather, hill and shawn1. |
| Leaving of:RIP TiDeZ nhsedseraVilla chunyuen504 and Florian1609sDo. |
| The alliance reaches a population more than 5,000. |
|
| 30/06/15 | Joining of:yorgohaber. |
| Leaving of:hill and shawn1. |
| July 2015 |
|
| 01/07/15 | Leaving of:Mahalac and excalibur. |
|
| 02/07/15 | Joining of:Denowned. |
|
| 03/07/15 | Leaving of:Stormfang Amu and Denowned. |
|
| 04/07/15 | Leaving of:PURErage and VeiOm. |
| Deletion of:BURNING. |
|
| 05/07/15 | Joining of:rami the great. |
| Leaving of:Help and Luman. |
| Deletion of:The Godfather. |
|
| 06/07/15 | Leaving of:rye and schadow. |
|
| 07/07/15 | Leaving of:Astraden. |
|
| 09/07/15 | Leaving of:Reepicheep and artas2. |
|
| 17/07/15 | Leaving of:fixwienix. |
|
| 22/07/15 | Leaving of:rami the great. |
|
| 30/07/15 | Deletion of:yorgohaber. |
|
| 31/07/15 | Deletion of:Apex Destroyer. |
| September 2015 |
|
| 09/09/15 | Deletion of:rhino. |
| October 2015 |
|
| 21/10/15 | Deletion of:nangthanh. |
| The alliance XC was canceled. |