A Card Game of Periodic Elements. 

Sum (v.) Matters.

Sum (n.) Matters.

Addtomic turns all 118 elements of the Periodic Table into a strategic card game of atomic sums.

Build combinations from elements in the same group, beat the active atomic sum, and be the first to play your way out of cards. Simple to learn, surprisingly tactical — you may even pick up some chemistry along the way.

Designed for 3–6 players.

What's in the box

• Element Card x 118
  8 × 8 cm rounded-corner cards, one for every periodic element

• Addbacus x 6
  8 × 8 cm analog calculation tools for adding atomic numbers

• Rule Book

Play it. Learn from it. Or arrange all 118 cards into your own Periodic Table display.