Battle Of Skill

The First Luckless Trading Card Game

BOS is the ultimate battle of skill. With access to all of your cards at once, you are in complete control of the outcome of your battles. There is no shuffling, no drawing, no dice rolls, and no coin flips. Use your strategy to outplay your opponent, then seal their fate by summoning your boss monster. Nearly a decade of development has gone into this new take on the trading card game genre, and the result is an exciting, action-packed challenge that has you hooked on the first move.

Do you have what it takes to become a champion?

How to Win

Your goal is to master the strategy of the battlefield. Create your deck by collecting cards, then find someone to battle! When you play BOS, you engage in a completely unique battle every time. One player will win, and using that knowledge, you can improve your deck, tactics, or strategy. With no luck in the way, you can feel your skill growing every turn!

Want to see BOS in action? Check out the gameplay video on this page! You can also read the story of BOS below!

Core Concepts

  • No luck

  • Balanced gameplay

  • Expressive strategies

Watch a Real Match!

The Story

You are a powerful sorcerer, going to battle against another sorcerer. To help you in the battle, you've recruited three wizards. These wizards have small magic abilities and the power to call upon powerful monsters from the afterlife. These monsters, called summons, once existed in our world. They have copies of themselves conjured from the grave to be placed under your command, and are used to go to battle against other summons and gain an advantage over your opponent. How those summons came to be, or how they perished, is a story for another time.

But you are far stronger at magic than a mere wizard. You can use magic abilities called spells, which you cast at the cost of vim, the mana source of the world. But your greatest strength comes in the form of a world-ending force: A boss. In order to call upon it, you will need to complete a ritual to them, which is done by playing cards. Bosses, like summons, are creatures that once existed, but have previously died. However, these monsters contain the power to destroy the world and everyone on it in an instant. You are powerful enough to call upon them.

The first pyromancer of his village, and the last one standing after they killed his wife.

When nature experienced a threat that could wipe it out entirely, this was its response.

One of three: The progenitor of time. This dragon is said to be the origin of the blue stone.

Color of Your Soul

Depending on the color of your soul, you'll have a different experience playing BOS. By selecting the color of your soul, you choose what color of cards you allow in your deck. How will you represent the color of your soul?


If your soul is red, you favor fiery aggression above all. The more aggressive you are, the stronger you become.


If your soul is yellow, you wield natural strength. Your summons are the strongest, meaning you can play offensively or defensively.


If your soul is blue, you enjoy icy precision. You thrive in the thrill of a comeback and the use of the most powerful spells.

Ready to get started?