One Line: Letters and Codes
Line-drawing puzzles that reveal the words of a coded letter
Climbing Goat Games · Released Mar 10, 2022
- Reviews
- Very Positive
- 93% of 60
- Recent reviews
- Not enough recent
- Players
- 0
- daily peak, Oct 28, 2026
- Steam Deck
- Untested
- Last update on Steam
- 7 months ago
- Mar 3, 2026
What is One Line: Letters and Codes?
This single-player logic game has you draw one continuous line through every tile on a grid, using the mouse or arrow keys. Completing levels earns codes that reveal words in a love letter, with puzzles becoming harder as you progress.
For you if...
- +you prefer solving puzzles without time limits or scoring
Not for you if...
- −you want a tutorial before tackling the puzzles
What players say
93% of 60 reviews are positive
Players praise the varied puzzle mechanics and relaxing music, but often describe the game as short. They also note that the letter screen can reveal full puzzle solutions.
Screenshots and trailer
One Line: Letters and Codes system requirements
Minimum: DirectX 9 GPU, 4 GB RAM, 0.3 GB of disk space.
As published by the developer.
Can my PC run One Line: Letters and Codes?
Tell us your graphics card once and every game page will answer this for you.
Set up my PC →Minimum
- OS
- Windows 7/8/10
- Processor
- 2 Ghz Dual Core
- Graphics
- Graphics card supporting DirectX 9.0c
- Memory
- 4 GB RAM
- Storage
- 300 MB available space
- DirectX
- Version 9.0c
Does One Line: Letters and Codes have co-op or multiplayer?
No: single-player only, no multiplayer modes declared.
Does One Line: Letters and Codes run on Steam Deck?
Untested Not yet tested by Valve on Steam Deck.
PC version details
- DRM
- None declared on Steam
- Controller
- Full controller support
- Platforms
- Windows
- Achievements
- 10
- Steam features
- Cloud saves, Family Sharing
- Languages
- Full audio: English, Portuguese - Brazil, Spanish - Spain, Spanish - Latin America.
Does One Line: Letters and Codes use AI-generated content?
No AI-generated content is disclosed on the game's Steam page.
Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 28, 2026. How to filter AI games on Steam