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Abdec

Play OverviewPlay Overview

​Abdec (2023) is a brain-teasing book where you must solve incremental puzzles about placing shapes into grids. Play is initially about fitting the two Tetris-style shapes into the grid, but soon evolves into a challenge of deciphering what the inferred rules are to solve each page. It stands out for how these puzzles without rules invite the player to litigate what is and isn't allowed, while still offering an incredibly hard challenge.

Abdec is a forgotten textbook about the writing system of the Abb creatures. The Abb alphabet is made of block shapes, but the rules of how these are combined have been lost to a fire. Your challenge is to figure out the Abdec writing system as you solve the 70 head-scratching pages.

The book is small, spiral-bound, printed in full colour and games with a transparent sheet to let you try out solutions to help your thinking. The result is a game aimed at cerebral-puzzle connoisseurs. Its ruleless pages invite not only mathematical thinking but creative leaps to decipher what the rules are that would enable you to solve each scenario.

Our examiner, Andy Robertson, first checked Abdec 3 weeks ago. It was re-examined by Jo Robertson and updated 2 weeks ago.
Too complex for your family? There are lots of games similar to Abdec. Here are some easier younger-rated games:

Play StylePlay Style

This is a Brain Game game with Creative and Puzzle elements. This is a single-player game.

DurationDuration

Learn to Play: This takes 15 minutes to learn. You need a bit of time to get your head around the concept. Once you have got that, the learning continues as you play and discover more rules to apply.

Play Time: It takes between 1 minute and half an hour to play a round of this game. The nature of each puzzle is that they get incrementally harder. It's common to get stuck on a puzzle for a good length of time. After 7-8 hours of head scratching we still hadn't completed them all. There are also bonus puzzles that are more cryptic and some hidden puzzles.

Age RatingsAge Ratings

Skill Level

10+ year-olds usually have the required skill to enjoy this game. Although the early puzzles are solvable by younger players, the nature of discovering and maintaining a mental set of rules requires some resilience and restraint. Perseverance is important when you get stuck, as is common.

Content Rating

We haven’t documented this game’s content rating.

CostsCosts

There are no additional in-game purchases, loot boxes, adverts or subscription costs.

DetailsGame Details

Release Date: 01/01/2023

Skill Rating: 10+ year-olds

Players: 1

Genres: Brain Game (Creative and Puzzle)

Accessibility: 0 features documented (Tweet Developer )

Components: Book and Gadget

Developer: Blaz Stuff (@BlazStuff)


Taming Gaming Book Written by parents for parents, the database complements the in-depth discussion about video game addiction, violence, spending and online safety in the Taming Gaming book. We are an editorially independent, free resource without adverts that is supported by partnerships.

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