A simple, magnet-closed box for the Tic-Tac-Cap board at https://www.printables.com/model/72243-tic-tac-cap-a-game-of-stacking-and-stealing. Pieces should be stored on the board in a stacked fashion.

If you flip the lid over and print the box and lid with their outer faces down, there should be no need for support.

• “tic-tac-cap-lid-soilid.stl” has a flat top
• “tic-tac-cap-lid.stl” has the name of the game embossed on top
• “tic-tac-cap-text.stl” is the positive of the embossed text

The text and the lid can be combined for a multi-color lid, or the text can be set on top for a mid-layer color change.

The box and the lid accept 6x3 mm round magnets for secure closure. Using all four magnets provides a firm closure ideal for rough conditions but may be too strong for small hands that can't grip across the top of the box. I would recommend installing only two magnets to start and then evaluating.

The posted rules are slightly different than those included in the original game. Limiting the second player to a small marker on their first move allows the first player to force a win. Increasing the allowed marker size by turn instead of by round alleviates this problem. You may also want to prohibit a steal on either player's first turn. These addendums stop the game from devolving into a regular game of tic-tac-toe.