[Prototype] Math Duell

Prototype made for a strategy game based on addition and subtraction.

Instructions
Use your mouse to interact. Place the numbers 1-8 on the game board. Each slot has a minus/plus sign associated to the number. To take a turn select a number and click a number top, bottom, left or right from your selection. The sign on the selected number is used to change the value of the other one. Same colored numbers invert their color when combined.

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