Logic Arcade vs CTRL

Eight 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. - River Crossing — Ferry the wolf, the goat and the cabbage (and later wolves, sheep, oxen and a sheepdog) across the river without anyone getting eaten. Alcuin's 1,200-year-old puzzle and the missionaries-and-cannibals problem. 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 5 games + custom sandbox for Tower of Hanoi and Knight's Tour (Pro) - 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 one-time purchase to get chapters 2-4 across all 8 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.

CTRL is a fast-paced puzzle game inspired by programming concepts. This is not a coding course. It is not a quiz. It is not an interview preparation tool. Every level presents a short challenge that can be solved in seconds. Predict outputs, spot mistakes, find missing symbols, uncover hidden commands, and solve logic puzzles inspired by real developer thinking. Designed for quick sessions and continuous progression, CTRL focuses on problem solving rather than typing. Every answer is built using an in-game keyboard, creating a smooth and consistent experience from the first puzzle to the last. Features: • Hundreds of handcrafted puzzles • Programming-inspired challenges • Output prediction puzzles • Debug and syntax challenges • Logic and reasoning exercises • Offline gameplay • No account required • No data collection • Minimalist design • Fast and accessible gameplay Whether you're a student, a professional developer, or simply someone who enjoys logical challenges, CTRL delivers a satisfying puzzle experience built around the way developers think. One more puzzle. By using CTRL, you agree to our EULA (https://ctrl.msbx.dev/privacy).