Logic Islands is a mobile reasoning game built around original deduction puzzles in the knights-and-knaves tradition. Truth-tellers, liars, and stranger logics, on iOS and Android. 

It is made by Logic Islands Studio, an independent two-person studio in the Washington DC area, founded by Daniel Rosiak and Nadia Gasmi.

Every puzzle is designed, tested, and explained by hand. No AI generation in the puzzles or the teaching. The app starts with propositional logic and grows toward the full formal toolkit, from quantificational through modal, epistemic, and non-classical logic, delivered as adventures rather than a course.

Logic Islands is not brain training and makes no cognitive-improvement claims. It is a real subject, formal reasoning, the same kind tested on the LSAT and GRE and used in research, made into something you actually want to play.

10 islands at launch, with new ones added regularly. 
Free first island forever. Out now.

logicislands.com

Logic Islands

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Logic Islands

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