Gammapedia is archived. No new edits are allowed and no new accounts can be registered.
Ikepedia is the officially decreed successor to Gammapedia concerning Gammasphere canon.
Infinitypedia is another successor.
Pi Vault
From Gammapedia
The Pi_Vault is the home base of the Pie Emperors. It was created by Neochubbz and thrived for a decent amount of time. It was known as the sister forum to Baseclub, which shared the same fate.