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One Line: Letters and Codes

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App ID 1871500
App Type Game
Developer
Publisher New Dawn Game Studio
Franchise New Dawn Game Studio
Supported Systems Windows
Last Changenumber 30027116
Last Record Update 12 July 2025 – 12:44:02 UTC ()
Release Date 10 March 2022 – 14:15:02 UTC ()
❓ 81.95%
60 reviews
0
In-Game

You have just received a coded love letter! In this minimalist puzzle, you will have to draw a single line to fill the entire board. At each level solved, get a code to reveal a piece of the letter. Gather the codes, read the letter and discover the message.

Additional Information

Developer New Dawn Game Studio
controller_support full
community_visible_stats Yes
ReleaseState released
Publisher New Dawn Game Studio
Store Release Date 10 March 2022 – 14:15:10 UTC ()
osarch empty string
community_hub_visible Yes
Social Media https://www.youtube.com/@newdawngamestudio/
Primary Genre Casual (4)
Store Genres Casual (4), Indie (23)
Steam Release Date 10 March 2022 – 14:15:02 UTC ()
Store Asset Modification Time 12 July 2025 – 12:43:35 UTC () (1752324215)
library_assets
library_capsuleen
library_heroen
library_logoen
logo_position ↴
pinned_positionCenterCenter
width_pct100
height_pct100
osextended empty string
review_score 8
review_percentage 95
Detected Technologies (?) NWJS SDK, NodeJS SDK
controllertagwizard Yes
First seen on SteamDB 8 January 2022 – 22:13:01 UTC (), in changelist #13608425

Supported Languages

4 Languages Interface Full Audio Subtitles
English Yes Yes Yes
Portuguese - Brazil Yes Yes Yes
Spanish - Spain Yes Yes Yes
Spanish - Latin America Yes Yes Yes

Tags

🧩 Puzzle ☯ Minimalist 🖱️ Mouse only 🤯 Abstract 🧩 Logic ⚗️ Experimental ♟️ Grid-Based Movement 🧘 Relaxing ♠️ Solitaire 🃏 Tabletop 🔎 Point & Click 🏫 Education 🤏 Short 📏 Linear 😌 Casual 👪 Family Friendly 🌱 Indie 😓 Difficult 👤 Singleplayer 🏽 2D

Categories

Single-player Steam Achievements Steam Cloud Family Sharing Profile Features Limited

Hardware Categories

Full Controller Support DualShock Controllers (USB Only) DualShock Controllers

Accessibility Categories

Custom Volume Controls Playable without Timed Input Mouse Only Option

Assets

Load all asset images
clienticon f1e507da3e1ed8472813565d703bc5530792eedd
clienttga 7fe186c0a16c60a272e3d7598027c3e6c4eca3bd
icon 9677bca58fc76654f32536b486a1d4555c1a2605
logo 2ff3b21a4a20838e88ac3d4c5b31317191797df7
logo_small 2ff3b21a4a20838e88ac3d4c5b31317191797df7_thumb
small_capsule
englishcapsule_231x87.jpg
header_image
englishheader.jpg
library_assets_full
library_capsule ↴
image/englishlibrary_600x900.jpg
image2x/englishlibrary_600x900_2x.jpg
library_hero ↴
image/englishlibrary_hero.jpg
image2x/englishlibrary_hero_2x.jpg
library_logo ↴
image/englishlogo.png
image2x/englishlogo_2x.png
logo_position/pinned_positionCenterCenter
logo_position/width_pct100
logo_position/height_pct100
Assets
main_capsulecapsule_616x353.jpg
small_capsulecapsule_231x87.jpg
headerheader.jpg
hero_capsulehero_capsule.jpg
library_capsulelibrary_600x900.jpg
library_capsule_2xlibrary_600x900_2x.jpg
library_herolibrary_hero.jpg
library_hero_2xlibrary_hero_2x.jpg
community_icon9677bca58fc76654f32536b486a1d4555c1a2605.jpg
page_background_pathapp/1871500
timestamp12 July 2025 – 12:43:59 UTC
Trailers
256877510 ↴
trailer_nameOne Line: Letters and Codes Trailer
trailer_category1
trailer_480p/video/webm256877510/movie480_vp9.webm
trailer_480p/video/mp4256877510/movie480.mp4
trailer_max/video/webm256877510/movie_max_vp9.webm
trailer_max/video/mp4256877510/movie_max.mp4
microtrailer/video/webm1871500/446402/10af7285a1f376166a96a60ddc7ac2ae7b6b83e4/1751041455/microtrailer.webm
microtrailer/video/mp41871500/446402/10af7285a1f376166a96a60ddc7ac2ae7b6b83e4/1751041455/microtrailer.mp4
screenshot_medium256877510/movie.293x165.jpg
screenshot_full256877510/movie_full.jpg
trailer_base_id446402
all_agestrue
is_highlighttrue
timestamp1683120950

User File System

Key Value
quota 47.68 MiB (50000000)
maxnumfiles 200
savefiles
0 ↴
rootWinAppDataLocal
pathOneLine-LettersandCodes/User Data/Default/IndexedDB
pattern*
platforms/1Windows
recursive1

Save File Locations

Based on the configuration above, this is where we think the save files are located.

Read more about cloud saves in Steamworks documentation.

Platform Path Pattern
Windows %USERPROFILE%/AppData/Local/OneLine-LettersandCodes/User Data/Default/IndexedDB *
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