IOS Game center match making...

RubyMotion and GameKit for turn-based game...

Game Center "the specified participant does not have the required turn state"...

Good Practice to save game center data (GKTurnBasedMatch)?...

How to determine if score for the match has been submitted...

ERROR: You are not the current participant. When I am the current participant. What?...

Game Center Turn Based match list not showing when offline...

GKTurnBasedMatch receive data...

How do I identify an empty NSData Object that appears as empty brackets?...

Updating Turns in GKTurnBasedMatch with NSData...

Localized GKTurnBasedMatch message...