Differences between the GF and Pandemonia:

Instances: Recovery time instance if you have a Gold Package. Double the number of tickets for the arena.
Siege: The increased amount of Glory Points for regulars at the siege.
Great invasion: Provided prizes for the groups participating in the Invasion.
Rifts: Daily rifts available for all.
Dredgions: Dregions at fixed times, adapted in order not to interfere with other terms.
Events: Lots of events with interesting prizes.
Vote for Coins: You do not have to spend money, vote for our server, earn AC!