Puzzle Hub
beta
BuildInTheSun ↗

Daily puzzles that respect your time.

One account, one streak, one daily score. A small family of puzzles you can finish on a coffee break. No ads. No dark patterns. No free-to-play guilt trips.

Live today

NumFlow

App Store ↗

Daily number-sequence puzzle. Five guesses. One streak across every game in the hub.

Tip: play daily to start your streak. Streaks carry across every puzzle in the hub as games ship.

Share your result

One tap. Zero spoilers.

Finish a puzzle, hit share, paste anywhere. Emoji grid tells your friends how you did without giving away the answer. Streak carries across every game in the hub so one share proves the whole run.

Coming next

The 2026 puzzle roster.

Sudoku daily

Gravity well · Q3 2026

A single rotating daily Sudoku with archive access — one puzzle, four difficulty tiers, one shared streak.

Word chain

Wedge game · Q4 2026

Word-association daily. Start word, end word, 5 steps between. Small surface, big replay value.

Grid logic

Classic · 2027

Einstein-style logic puzzles with a daily rotation. The one you always meant to do a decade ago.

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Reader choice

We ask the waitlist what to build next. One request wins per quarter.

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Reader choice

Same engine, different shape. Minimal new code, maximum new puzzle.

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Reader choice

No auto-play, no ads, no cross-promo. Puzzles only.

Stay in the loop

Get told when a new puzzle ships.

One email per game launch. Nothing else. Zero ads. Unsubscribe anytime.

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