Endoku vs Hatchlock

No annoying ads, no data collection. Endoku is a single-player logic puzzle played on concentric rings, where you place numbers so each radial line adds up. Just two rules: • Each ring uses its set of numbers exactly once. • The cells along each radial line must add up to the same target. From these two simple rules, pure logic — never guessing — leads you to the one solution. Every puzzle is generated to be solvable by logic alone. Fresh for anyone who bounced off Sudoku, and meaty enough for anyone a little bored of it. Features: • Four board modes: Intro (2 rings) / Basic (3) / Advanced (4) / Expert (5) • Three difficulties (Easy / Medium / Hard) • Pencil marks (candidate notes) to work through the tougher boards • A fresh Daily puzzle with a calendar and streaks • A built-in strategy guide • Calm music and satisfying sound effects (each toggleable) • Gentle haptics • A calm, easy-on-the-eyes board • Japanese / English, portrait & landscape Intro and Basic (Easy/Medium) are free. A single one-time purchase unlocks all modes and difficulties, daily puzzles, the strategy guide, and music & sound.

Every egg in Hatchlock is sealed by a knot of arrows. Tap an arrow and it slides out the way it points — unless something is in the way. Find the right order, free the key arrows, and the egg cracks open to reveal a new bird. THINK BEFORE YOU TAP Each level has a move limit. A blocked arrow bounces back for free, but every arrow you pull out counts. Plan ahead and earn three stars. HATCH AND COLLECT Thirty-one birds are waiting in their eggs — from a kingfisher and a robin to a mandarin duck, a kiwi and a golden pheasant. Each has its own egg, its own look and its own little habits on the shelf. BIRDS THAT HELP Pick a working bird and it slowly makes power-ups for you: hints, undos and +2 moves. No timers to babysit — collect them whenever you come back. NEW TWISTS AS YOU GO 240 hand-checked levels, with a steady difficulty curve and new rules along the way: double-headed arrows, shaped boards, locked arrows, Portals and Stones. Pull out the arrow with the matching stone tag to break the stone and clear the way. From level 221, try larger boards up to 19×28. Every level is guaranteed solvable without power-ups. DAILY CHALLENGE A fresh timed puzzle every day: clear every arrow in three harder rounds. An optional practice round helps you get started. Collect stamps, keep your streak and hatch a hummingbird that makes extra time. PLAY YOUR WAY • Plays offline • Short levels, perfect for a quick break • Reduced-motion option • English and 简体中文 Hatchlock is free to play with optional ads. A one-time Ad-Free purchase removes interstitial ads.