Cipher Command vs Logic Arcade

Step into the shoes of a Bletchley Park codebreaker. Cipher Command is an immersive puzzle game where you decrypt authentic World War II cipher messages using historical encryption techniques. CRACK REAL CIPHERS Master seven historically accurate cipher systems — from the classic Caesar shift to the legendary Enigma machine. Each puzzle uses a real encryption method employed during wartime operations. 30+ HISTORICAL MISSIONS Decode intercepted messages spanning D-Day preparations, Pacific Theater intelligence, Eastern Front communications, and Cold War-era signals. Every mission is grounded in real historical events. INTERACTIVE CIPHER WHEEL Spin the beautifully crafted Caesar dial to decrypt messages letter by letter. Tap individual cipher letters, rotate the wheel, and watch the plaintext emerge — no shortcuts, just pure codebreaking skill. LEARN AS YOU PLAY Each mission briefing provides historical context about the operation, the cipher technique, and the stakes. The built-in Codex reference covers every cipher type with examples and history. EARN YOUR RANK Progress from Unclassified to Most Secret difficulty levels. Collect achievement badges as you hone your cryptanalysis skills and rise through the ranks. FAIR BY DESIGN No ads. No energy meters. No subscriptions. The opening missions are free, and each historical theater is a one-time purchase you keep forever. FEATURES - 7 cipher types: Caesar, Substitution, Rail Fence, Vigenere, Playfair, ADFGVX, Enigma - 30+ missions across 4 historical theaters - Interactive cipher wheel with tactile feedback - Guided tutorial for new codebreakers - Frequency analysis and substitution mapping tools - Historical briefings and outcome reveals - Achievement badge collection - Atmospheric radio voice narration - Dark parchment-themed UI inspired by wartime documents

Seven classic math and logic puzzles in one app. No ads. No accounts. Just puzzles. GAMES INCLUDED: - Water Jugs — Measure a target volume by filling, emptying, and pouring between jugs. Based on Bezout's identity and the Extended Euclidean Algorithm. - Tower of Hanoi — Move stacked disks between rods without placing a larger disk on a smaller one. Includes the classic 3-rod puzzle and the 4-peg Frame-Stewart variant with a custom sandbox mode. - Sliding Puzzle — Arrange numbered tiles in order on grids from 3x3 to 6x6. The original 15-puzzle, popularized in the 1880s. - Lights Out — Toggle lights on a grid where each press flips neighboring lights. Rooted in linear algebra over GF(2). - Knight's Tour — Guide a chess knight to visit every square exactly once. Studied by Euler, solved by Warnsdorff's heuristic. - Egyptian Fractions — Decompose fractions into sums of distinct unit fractions. Features authentic hieroglyphic numeral display. - Turntables — Rotate interlocking rings to arrange colored tokens. A physical model of permutation groups and Hungarian Rings. FEATURES: - Up to 40+ hand-crafted campaign levels per game - Chapter-based progression with increasing difficulty - Auto-save and resume — pick up right where you left off - "The Math" — brief explainers on the theorem behind each game - Personal best tracking for moves and time - Free Play / Random mode for 4 games + custom sandbox for Tower of Hanoi and Knight's Tour (Pro) - Retro arcade aesthetic with tactile button feedback - Works completely offline - No ads. No tracking. No data collected. UNLOCK FULL GAME: Chapter 1 of every game is completely free. Unlock the full game with a single $3.99 purchase to get chapters 2-4 across all 7 games, Free Play mode (with chapter 1 Random unlockable for free by beating the chapter), custom sandbox modes for Tower of Hanoi and Knight's Tour, and all future content.