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Life & fun · July 27, 2026

Dozenal – A Game of Spatial Arithmetic

Hello HN! We're Rory and Chris, and we've made a game called Dozenal[0], a grid-based number puzzle game where the objective is to use all the tiles on the board to create totals of 12 (hence the name). We think the mechanic is quite unique, although keen to hear if people know of similar games! You essentially drag tiles across the board, and the distance between two numbers decides the arithmetic operation when they connect to each other: zero spaces is addition, one space is subtraction, two spaces is multiplication: e.g. 5 → 4 = 9 5 → _ → 4 = 1 5 → _ → _ → 4 = 20 We've spent the past…

Dozenal – A Game of Spatial Arithmetic launched on July 27, 2026 with 16 votes, #1,041 of 24,623 launches that month and more than 90% of that year's launches.

Visit dozenal.game ↗Alternativestop 4% of July 2026

In plain words

Dozenal is a grid-based puzzle game where players drag number tiles across a board to create totals of 12. The distance between tiles determines which arithmetic operation is performed—adjacent tiles add, tiles one space apart subtract, and tiles two spaces apart multiply. Players must use all tiles on the board to solve each puzzle. The game is designed for people who enjoy spatial reasoning and number puzzles.

written from the facts on this page · September 2026

From the sources

A grid-based number puzzle game where you combine tiles to make 12

In the maker’s words, at launch

Hello HN! We're Rory and Chris, and we've made a game called Dozenal[0], a grid-based number puzzle game where the objective is to use all the tiles on the board to create totals of 12 (hence the name). We think the mechanic is quite unique, although keen to hear if people know of similar games! You essentially drag…

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