Diablo III Starter Edition provides players the ability to try out a limited version of Diablo III. Guest Pass keys allow a player to give friends the opportunity to play the Starter Edition of Diablo III. Guest Pass keys are included in all box copies of Diablo III.
Players on Starter Edition game licenses have the following restrictions:
Act I up to the Skeleton King is available
Level 13 cap
Matchmaking available only with other Starter Edition players
No Auction House access (Real Money or Gold)
Global Play is not available. Players attempting to connect to Diablo III Starter Edition in a region other than their Battle.net Account's home region will receive Error 12. See the Global Play support article for more information.