The Rules Girl takes a look at Deca Slayer. Deca Slayer launches on Kickstarter on March 22nd, 12pm EST. Follow this link for the Kickstarter landing page when it goes live: http://www.arclight.co.jp/ag/ds/deca_... In Deca Slayer, players act as guild masters, leading adventurers into battle against fearsome monsters and competing with each other for treasures and new recruits. The goal of the game is to win, and you win by having the most victory points after the dragon has been defeated.