DID YOU KNOW: Although a Boom Beach base lives on the server, the ability to control/access your base lives on files on your device.
If you created a base, and are not attached to SCID or GC, and your device is: Broken, lost, stolen, or reset - YOU LOSE THE ABILITY TO PLAY YOUR BASE.
If you have attached to SCID or Game Center, you can recover access to your base after any of the above scenarios, simply by logging back into your SCID or GC and launching Boom Beach.
Linking to Facebook is NOT a recovery method - it is simply to bring Facebook friends into the game!
PLEASE ATTACH YOUR BASE NOW!
SCID (the new way)
1) do SCID on your original game account and tick "remember me" (if you don't you'll just need another code which is a bit of a faff...)
2) Once done disconnect from SCID. which logs you out and takes you to a loading screen...
3) Chose option to play without SCID.... and you'll get a fresh base.
4) Play until you can 'connect' it to SCID.(as above) and you just log in and out of each one at will.
Thx LilMiss - posted below
How to use Multiply SuperCell IDs - originally posted by Drewhttps://youtu.be/nJ_-Ih1KsW8
Game Center (the old way)
Open up Game Center App and log in. It will require an Apple ID.
Open Boom Beach
If this is your first time being logged into Game Center while using Boom Beach, your base will be saved automatically! You should see this when you open Boom Beach:
So now that you have your game hooked up you can simply Create Another Apple ID. I started my second game on a second device but you can RESET your device, create a second Apple ID with a second email and start Boom Beach up. It should give you a NEW Game to start with. Resetting your device will delete all your settings, email, well everything not factory, so it is probably better to use a second device. You can create as many BB games as you want this way and play them ALL on your preferred device.
Once you have 2 Apple IDs and 2 Boom Beaches running on separate devices, just sign into your various Apple IDs on your preferred device,
Sign out of your Apple ID
Got to Settings > Game Center
Tap on Sign Out
Then Tap on Sign In
Fill in the other email used for the second Apple ID and Password
Once it has logged in start Boom Beach
Game Center Alert
Do you want to load "GameName"? Warning Current game info will be lost.
Respond Cancel or Load
Load will load the associated game of the new Apple ID.
Cancel will Probably load the current game (from your other Apple ID) and save on the new Apple ID as well. Never had the guts to try this option. Did not ever want the same BB running on 2 Apple IDs. The other possibility is that it will just start a new Boom Beach and lose the one previously associated, either way it wipes the associated game for something else.
Now that you have both games you can sign into either at will on your device with your Apple IDs.
LANfils original post was referenced and found here:PUBLIC SERVICE ANNOUNCEMENT: Attach your base to Game Center BEFORE global launch!
Anyone want to add to this just post it below.