# Ink Thread

> Ink Thread is a free puzzle game by Glowbox Studio that you play directly in your web browser — best on a phone held upright, and also playable on tablet or computer. No download, no sign-up.

- Play: https://ink-thread-stg.glowbox.dev
- Page: https://staging.glowbox.dev/game/ink-thread
- Genre: Puzzle, Relaxing, Cozy, Brain
- Developer: Glowbox Studio
- Platform: Web browser (Portrait)
- Price: Free · Age rating: Everyone
- Released: 2026-10-05 · Updated: 2026-10-05

## About

Pull one line of ink out of the postbox, sweep up every sealed letter, and never let your line cross itself. Twelve hand-built maps, a strict ink limit, and a par line to beat. Every delivery gets its own AI-written postmark. Free to play in your browser on phone or desktop, no sign-up.

## How to play

- **Drag**: Draw the line one dot at a time
- **Drag back**: Undo the last step

## FAQ

**Is Ink Thread free to play?**
Yes. Ink Thread is completely free and needs no account.

**Do I need to download Ink Thread?**
No. It runs in any modern web browser. Open the page and press Play.

**Can I play Ink Thread on my phone?**
Yes. It works on phones, tablets and computers.

**Does Ink Thread save my progress?**
Progress is saved in your browser on this device. Clearing site data resets it.