The crystals are required to unlock new realms in Dark Legacy.
Each subsequent Realm requires a greater amount of crystals to unlock. All Realms are connected to Sumner's Tower. Not to be confused with Obelisks, which are used in Gauntlet: Legends to unlock new areas.
|Forsaken Province||Orange: 15|
|Mountain Kingdom||Red: 100|
|Castle Stronghold||Purple: 125|
|Sky Dominion||Blue: 150|
|Forest Realm||Green: 175|
|Desert Lands||Yellow: 200|
|Ice Domain||White: 225|
|Dream World||Black: 250|