Turngrid vs Total Synthesis

Turngrid — a quiet puzzle of arrows, order, and clean grids. Read the board, find the one sequence that works, and clear it move by move. No timers, no luck. Just logic and that satisfying click when it solves. 3,000+ hand-crafted levels that grow with you. Pick one up for a few minutes, or lose an evening to it. Features: • 3,000+ levels • Difficulty that climbs as you sharpen • One simple rule, endless puzzles • Progress saved automatically • Optional sound & haptics

A complete organic chemistry study app with a full roguelike deckbuilder living in its basement. Drill every topic, push every mechanism's arrows yourself — then descend into a lab gone wrong, where the same chemistry keeps you alive. STUDY — EVERYTHING BEFORE THE EXAM (AND AFTER) • 1,000+ Practice Items: ~20 drill formats across every topic — formal charge, stereochemistry, spectra, synthesis, and more. Built for semester exams, MCAT review, post-bacc and continuing education. • Push the Arrows: Every mechanism, step by step — watch each move explained, then draw the electron-pushing arrows yourself and get graded on them. Stuck? Hints and a worked solution are one tap away. • Full Mock Exams: Build a practice test with pace presets and exam-style deferred feedback, the way the real thing scores. • Flashcards & References: 28 decks with spaced review, authored lessons per topic, and the complete reaction library — a quick reference that stays useful on the job long after the exam. PLAY — THE BONUS: A REAL ROGUELIKE DECKBUILDER • Contain the Outbreak: Something got loose in the university's chemistry building. Descend the sublevels, requisition your deck from the stockroom, and seal the source. • The Chemistry Is the Combat: Reagents are cards. Match nucleophiles to electrophiles, chain mechanisms for payoff turns, and mind the thermometer and the pH meter — the conditions punish greed. • An Ever-Changing Lab: Every expedition redraws the containment map — different rooms, specimens, caches, and bosses. Every fight quizzes the same chemistry you study. Free to try. One purchase unlocks everything — no subscriptions, no microtransactions.