CluePost is a free logic deduction game you can play straight in your browser — on a phone, a tablet or a desktop, with nothing to install. It takes its cue from the classic pencil-and-paper logic riddles (the "the owner of the red house doesn't have a dog" kind) and reworks them with entirely visual clues: no paragraphs to read, everything is deduced by looking at icons.
The main character is a rural postman with one particular talent: an unbeatable head for order and logic. What starts as another day delivering the mail turns into a journey through increasingly odd worlds — Don Ramiro's farm where every animal has escaped, an alien fleet scattered by a meteor storm, the royal records of a pharaoh on the verge of executing his vizier. In every world the method is the same: "show me the notes" — and start deducing.
Three playable worlds — The Farm, The Cosmos and Ancient Egypt — with 200 levels each and three difficulties per level (4×4, 5×5 and 6×6): 600 puzzles per world, every one of them guaranteed to have a single solution and to be solvable by pure deduction, without guessing. A guided tutorial teaches the basics in five minutes, and the story panels unlock as you progress. You can play without an account (your progress stays in your browser) or connect your Google account to sync progress across devices.
CluePost is under active development: more worlds are on the way (the plan runs to ten), each with its own icon categories, its own character and its own chapter of the story. Beyond the grid puzzles, two other games set in the same universe are in the works: Bee World, played on a honeycomb, and the Dead Letter Office.
CluePost is developed by JSB SOFTWORKS, an independent studio. All of the game's art — the hundred-plus icons, the world islands and the narrative panels — was created specifically for CluePost.
Feedback, ideas, bugs you have run into: cluepostgame@gmail.com. Everything gets read.