Generated puzzles, bundled packs, and hybrid puzzle types give the app both endless practice and curated quality.
In closed testing
The Puzzle Book
A big, replayable puzzle collection with logic, word, number, card, and tile games under one polished cross-platform shell.
More than one puzzle app
One library for quick plays, deep sessions, and daily variety.
The Puzzle Book combines generated puzzles, bundled packs, curated clue content, difficulty tiers, hints, timers, undo/redo, save/resume, and theme choices.
Puzzle library
A broad catalog designed to keep players coming back.
SudokuMinesweeperWord SearchCrosswords
CryptogramsMissing VowelsWord ScrambleNonograms
KakuroKenKen / CalcudokuWord LadderSlitherlink
SolitaireSpider SolitaireMahjong Match
Retention features
Built like a product, not a pile of mini-games.
Puzzle Book offers a tactile paper-inspired look, while Arcade gives players a brighter, higher-energy style.
Starter Grids, Paper Trail, and Arcade After Dark create clear paths for free, premium, relaxed, and challenge-focused players.
Save/resume, hints, timer support, undo/redo, and offline packs are used where they make sense for each puzzle type.
Relaxed, Easy, Medium, Hard, and Expert levels let the same app serve casual play and demanding sessions.
Kotlin Multiplatform targets Android, iOS, desktop, web, and server-backed expansion paths from the same product core.
Business angle
A premium puzzle shelf with room for packs, themes, and long-term content drops.
Daily / featured puzzle surfaces
Free starter content with premium pack expansion
Logic, word, number, card, and tile categories in one brand
Broad replay value without depending on a single game mechanic