Mouse- To aim, left click to fire/attack. WASD keys- To move the character. Q- To use health potion. E- To use the O2 refill potion. 1-5 - To change the sword's gem. Space bar- To change weapon's type.
Searching for hidden treasure while fighting against angry sea creatures for your life. Of course real-life treasure hunters need a good gear luckily you can buy several upgrades and items with your collected treasure money.