GCPing -- Apple Game Center Test Application

Test matchmaking and multiplayer via Apple's GameKit APIs.

Requires Game Center compatible devices (OS 4.1+).

Warning

• Peer-to-Peer networking in Game Center is very flaky (IMHO)
  • Sessions may start but opponents may not connect
  • Data may be sent one direction, but not be received by the other

GCPing only exposes the problems and cannot solve the fundamental issues with NATs and Firewalls.

Interesting features

• Multiplayer Matchmaking with Voice Chat (2-4 players)
• Add more players (up to 4) into an existing session
• Send reliable "ping" command to other devices and get back RTT

Brought to you by Damon Danieli at Z2Live, Inc.