Hello Mobile Gamers, X.D. Global has started taking pre-registrations of its new mobile game ‘Ulala: Idle Adventure’ on both Android and iOS devices. This is a mobile Massively Multiplayer Online Role-Playing Game (MMORPG) which brings to life the excitement adventure of the Stone Age in a fun and social way! You can pre-register for Ulala: Idle Adventure from the link given at the end of this post. Before that have a look of the Ulala: Idle Adventure trailer below.