The new expansion to 3D mobile MMO Celtic Heroes on Android is completely free and brings, amongst other things, a realm with new quests with unique rewards, and new armour and weapon traders. In addition, heroes can now pit their might against “Aggragoth” a powerful dark scaled fire breathing dragon.
You'll be prompted to update the application, once updated you'll have access to the expansion of the new area!
Additional notes:
+ Explore the Otherworld
+ Legendary Relic Chest available in the Item Shop!
+ UI improvements
+ Spiritshadow Armour questline
+ level 80+ rare boss spawns
+ Quest/item text bug fixed
+ Loads of small bug fixes
You will need to update to continue your journey, failing to update will cause you to be unable to log in!

The Otherworld is a realm of magic that lies parallel to the mortal world and was created by the gods long ago. Following a great battle between the good and evil gods and their supporters, the evil god Crom was defeated and imprisoned in the citadel of Rath Parras that lay in the Otherworld. The good gods decided to distance themselves from mortal affairs and recruited humans, known as Wardens, to watch over Crom as they departed to other lands.
From within his prison, Crom was able to use his powers to influence some of the Wardens - to make them question their duty and whether the gods had abandoned them. These Wardens eventually turned on their loyal comrades, and there was a great battle that resulted in the death of most of the Wardens, both those who were loyal and those who had turned.
With the battle over, some of the Wardens who turned found their sanity returning. Horrified at what they'd done, they dedicated themselves to either redeeming or destroying those who remained under Crom's influence. Meanwhile, the surviving Wardens who had remained loyal fled to the Celtic lands, while those who were still under Crom's influence wandered the Otherworld, attacking any they came across in their madness.
Into this confusion came the Blackstone Cabal. This cult had pledged itself to Crom and was dedicated to freeing their master from his imprisonment. Unopposed by the Wardens, they were able to move into the Otherworld and begin the final stage of their plan to free their master. So far, their attempts have met with failure, but it is only a matter of time until they are successful and Crom is released to once again plunge the Celtic lands into darkness. Only the most heroic of adventurers can hope to save the Celtic lands from this fate.