Double Domino Havoc - A 3D printed Game of Skill and Chance

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A few years ago, I designed a game called "Board Dominoes" that was sold online at TheGameCrafters.com website and through my own website. I still play the game often with friends and family, and everyone loves it. Someone recently asked me if I was still selling the game, and it dawned on me that now that I had a 3D printer, I could actually make a newer version of it in plastic and share it with those who have access to a 3D printer. Since the 3D version wouldn't be played on a game board anymore, I've renamed the game "Double Domino Havoc" in honor of how I've come to learn the game is actually played. You'll learn this too if you decide to print it. The game comes in two sizes, but I'm only sharing the travel size version here since it can be printed in one print operation. Each rack takes approximately seven hours to print, and the number of racks you print depends on how many players are going to play the game (up to eight). I prefer numbered dominoes over ones with dots. The dominoes aren't included in the 3D print. You can purchase a Mexican Train Fun Size Numbered Dominoes double twelve set for use with up to eight players or a double nine set for playing with four to six players. The 3D print creates a single rack that contains sections for holding dominoes. You'll need one rack for each person who wants to play. The objective of the game is simple: be the first person to move six dominoes from the tray area of the rack to the play zone. But winning the game isn't as easy as it sounds. Read the rules of doubles to learn why. Instructions: Printed at .25mm with infill of 25% and no supports required. The rack comes in three pieces, so you'll have to glue them together. I use ABS plastic filament, so I glue it with PVC pipe cement. The center direction arrows can also be glued together to form a single element. The direction arrows come in handy for remembering the player rotation order, which changes frequently throughout the game. The Game Rules: Double Domino Havoc is an addicting game of skill and chance that's simple to play but difficult to win. The objective is quite simple: move six dominoes from your tray area to the six spaces above it as you draw tiles from the boneyard or optionally from the face-up tiles at the top of each player's domino rack, all while discarding a tile to keep a fixed number of dominoes in play. The first person to move their six dominoes from the tray area to the center section of their rack is the winner of the round. The number of rounds can vary, but at least three players are needed to make use of the clockwise and counterclockwise rules described in the RULES OF DOUBLES section below. The game starts by having each player take six dominoes from the boneyard and placing them in the tray area of their rack. The first player starts by taking one additional domino from the boneyard and adding it to their tray. The player then arranges these seven dominoes to obtain the best sequential train they can form. This is the only time you'll have more than six dominoes in your tray! At the completion of your play, you'll be discarding one of the seven dominoes. The domino at the head of this train is then placed in the center section of their rack in the first empty space nearest the top of the rack. The player must then discard one domino from their tray face up to the space in the top of the rack. You want to try to play your highest numbers as soon as possible because whatever is left in your tray is counted against you at the end of the round. At the completion of each play, there should always be a total of six dominoes between a player's tray and the six playing spaces on the rack (this doesn't include the space for one domino at the top of the rack used for discards). After each of the players has completed their first round of play, there should now be one domino from each player in the top section of their rack facing up. These dominos are now available to be taken in lieu of drawing from the boneyard. Each round of play consists of drawing one domino, playing a domino if possible (to the center of their rack), and then removing and discarding one domino face up to the top of their rack in the discard section so that you're always left with six dominos in play between your tray and the train. The center section of each rack contains six vertical recessed areas where your sequential train is played. The player must play a domino from their hand onto the existing train, matching either the number or the adjacent number on the train. If a player cannot play a domino, they must draw one from the boneyard. The game continues until all players have played all of their dominoes and the first player to get rid of all their dominoes wins the round. The winner is the first player to win three rounds.