Dragons have taken over the surface, forcing humans to go underground. While exploring, you and your fellow humans discover a box with an orange glowing eye on the outside. The phrase DO NOT OPEN are carved on the sides. So of course you open it...ONLY TO BE INSTANTLY CURSED!

The only way out is to take out your closest friend with your new cursed powers to summon Familiars and cast spells at the cost of your own life.

Each player's goal in Life Siphon is to defeat the player to their left, and the game is over when the first player drops to zero health, meaning you must plan your strategy to be effective offensively against one player while defending against another. Since everything costs your own health, the heavier your attack, the more vulnerable you are. You may even find yourself helping your attacker to give you the opportunity to make the killing blow.