Sundown: Logic Puzzle Game

New puzzles. Daily challenges. Clever sun-and-moon logic. Build streaks, unlock themes, earn achievements, and sharpen your reasoning.

Sundown is a clean, challenging logic puzzle game about filling a grid with suns and moons. Every puzzle has one solution and can be solved by pure deduction. No guessing, no trial and error.

Fill each 6x6, 8x8, 10x10, or 12x12 grid by following simple logic rules: each row and column needs an equal number of suns and moons, no three matching symbols can appear in a row, and edge clues show when neighboring cells must match or differ.

Play a fresh Daily Challenge every day, choose new puzzles by size and difficulty, or share a puzzle code so friends can solve the same board. Sundown is great for fans of logic games, number puzzles, grid puzzles, brain training, Sudoku, Tango, binary puzzles, and deduction games.

Stuck? Step-by-step hints teach the next deduction without immediately spoiling the answer. Track your stats, solve streak, best times, and achievements as you improve.

Sundown is free to play with optional rewarded ads. Premium is a one-time purchase that unlocks unlimited play, Expert puzzles, premium themes, custom sun and moon symbols, and removes ads. No subscription.

Features: • Pure logic puzzles with one solution • Daily Challenge puzzle • 6x6, 8x8, 10x10, and 12x12 grids • Easy, Medium, Hard, and Expert difficulty • Step-by-step hints that teach deduction • Puzzle codes for sharing boards • Stats, streaks, best times, and achievements • Streak reminders and freeze safeguards • Premium themes and custom symbols • No account required