How does it work?

Nubik vs Herobrin's Army

You will have to go through hordes of monsters!
After all, Herobrine kidnapped Nubik's brother!
Craft weapons, upgrade them, use them to defeat enemies.
Become a Hero and save your brother!

Control for PC:
Walking - arrows/WASD
Attack - press LMB
Weapon Crafting - Drag the weapons in the inventory to the same weapon to get an upgrade.

And if you decide to fight through the screen of your mobile device, then:
Walking - control takes place through the on-screen joystick
Attack - the sword button on the screen