SKULL UP: Idle RPG

Efun Games Co., Ltd.

In-app purchases

About this game

[Game Features]
Even a rookie skull can become the Skull King! In Skull Up, you will rise from the bottom to the throne: collect over 60 Skellies to form your unique teams, enjoy idle management with abundant rewards, and unlock multiple adventures. Come and unleash the power of the undead and evolve from a nobody into the Skull King!

[Endless Fun, Underworld Adventures]
A rookie skull uncovered hidden treasures! In Skull Up, you can amass massive resources through management gameplay, or defeat mighty enemies with smart strategies. Join a guild and fight alongside your bone buddies! More content await—nonstop excitement guaranteed!

[Diverse Skellies, Boundless Power]
Gather various Skellies during your path to becoming the King! During this adventure, you will encounter over 60 unique Skellies with distinct looks and abilities. With diverse designs, they can be switched between human and skull forms, who are your strongest bone allies!

[Easy Progression, Loss-Free Growth]
Power up your companions without pressure: The loss-free progress system allows you to upgrade any Skelly—the resources can be fully refunded. Experiment freely, optimize your team, and achieve rapid power spikes with no investment wasted.

[Free Combinations, Smart Strategies]
Level up nonstop and show the king’s edge! Unlock your strategic potential and assemble a bone-powered team. Whether breaking defenses or providing support, every Skelly hides unique strengths— deploy them wisely!

[Idle Management, Effortless Rewards]
Future king, this undead castle is yours! Assign skull workers to smelt, log, and mine—gain massive EXP and valuable resources even while offline and level up with ease! With an idle strategy system, victory comes effortlessly!

What’s new

1. Full Moon Theme Event Updated
2. Game Resource & Performance Optimization