One Line: Letters and Codes
| App ID | 1871500 |
| App Type | Game |
| Developer | New Dawn Game Studio |
| 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 ( |
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.
Steam price history
Special Promotion, ends 25 October 2025
Current Price
-51% $0.49
Lowest Recorded Price
$0.29 at -71%
16 March 2023
| Currency | Current Price | Converted Price | Lowest Recorded Price | ||
|---|---|---|---|---|---|
 U.S. Dollar |
-51% $0.49 | $0.49 | $0.29 | $0.29 at -71% | |
 Russian Ruble |
-50% 21 ₽ | $0.25 | -47.20% | $0.11 | 9 ₽ at -70% |
 Kazakhstani Tenge |
-50% 150₸ | $0.27 | -43.11% | $0.13 | 75₸ at -70% |
 Vietnamese Dong |
-50% 7500₫ | $0.28 | -41.89% | $0.17 | 4500₫ at -70% |
 Indonesian Rupiah |
-50% Rp 4849 | $0.29 | -40.25% | $0.15 | Rp 2549 at -70% |
 Indian Rupee |
-50% ₹ 26 | $0.29 | -39.67% | $0.13 | ₹ 12 at -71% |
 Philippine Peso |
-50% ₱17.97 | $0.30 | -36.95% | $0.18 | ₱10.78 at -70% |
 Ukrainian Hryvnia |
-50% 13₴ | $0.31 | -36.45% | $0.14 | 6₴ at -71% |
 South African Rand |
-50% R 5.50 | $0.31 | -35.38% | $0.17 | R 3.00 at -70% |
 Brazilian Real |
-50% R$ 1,74 | $0.32 | -34.39% | $0.12 | R$ 0,68 at -70% |
 Chilean Peso |
-50% CLP$ 310 | $0.32 | -33.98% | $0.15 | CLP$ 150 at -70% |
 Kuwaiti Dinar |
-50% 0.10 KD | $0.32 | -33.26% | $0.19 | 0.06 KD at -70% |
 Thai Baht |
-50% ฿11.50 | $0.35 | -28.38% | $0.21 | ฿6.90 at -70% |
 Malaysian Ringgit |
-50% RM1.50 | $0.35 | -27.59% | $0.21 | RM0.90 at -70% |
 Taiwan Dollar |
-50% NT$ 11 | $0.35 | -26.77% | $0.19 | NT$ 6 at -73% |
 Mexican Peso |
-50% Mex$ 6.69 | $0.36 | -25.75% | $0.21 | Mex$ 4.01 at -70% |
 Saudi Riyal |
-50% 1.37 SR | $0.36 | -25.45% | $0.21 | 0.82 SR at -70% |
 Colombian Peso |
-50% COL$ 1400 | $0.36 | -25.38% | $0.15 | COL$ 600 at -70% |
 Peruvian Sol |
-50% S/.1.25 | $0.36 | -24.68% | $0.22 | S/.0.75 at -70% |
 Qatari Riyal |
-50% 1.39 QR | $0.38 | -22.09% | $0.22 | 0.83 QR at -70% |
 South Korean Won |
-50% ₩ 550 | $0.38 | -21.12% | $0.23 | ₩ 330 at -70% |
 Japanese Yen |
-50% ¥ 60 | $0.39 | -18.63% | $0.19 | ¥ 30 at -70% |
 Uruguayan Peso |
-50% $U16 | $0.40 | -18.30% | $0.17 | $U7 at -71% |
 U.A.E. Dirham |
-50% 1.50 AED | $0.40 | -16.66% | $0.24 | 0.90 AED at -70% |
 Chinese Yuan |
-50% ¥ 3 | $0.42 | -14.10% | $0.25 | ¥ 1.80 at -70% |
 New Zealand Dollar |
-50% NZ$ 0.74 | $0.42 | -13.52% | $0.21 | NZ$ 0.38 at -71% |
 Singapore Dollar |
-50% S$0.55 | $0.42 | -13.33% | $0.25 | S$0.33 at -70% |
 LATAM - U.S. Dollar |
-51% $0.44 | $0.44 | -10.20% | $0.44 | $0.44 at -51% |
 MENA - U.S. Dollar |
-51% $0.44 | $0.44 | -10.20% | $0.44 | $0.44 at -51% |
 CIS - U.S. Dollar |
-50% $0.45 | $0.45 | -8.16% | $0.27 | $0.27 at -70% |
 South Asia - USD |
-50% $0.45 | $0.45 | -8.16% | $0.27 | $0.27 at -70% |
 Hong Kong Dollar |
-50% HK$ 3.50 | $0.45 | -8.05% | $0.23 | HK$ 1.80 at -70% |
 Canadian Dollar |
-50% CDN$ 0.64 | $0.45 | -6.91% | $0.24 | CDN$ 0.35 at -71% |
 Australian Dollar |
-50% A$ 0.75 | $0.48 | -0.66% | $0.29 | A$ 0.45 at -70% |
 Costa Rican Colon |
-50% ₡250 | $0.49 | +1.62% | $0.29 | ₡150 at -70% |
 Israeli New Shekel |
-50% ₪1.75 | $0.52 | +7.90% | $0.31 | ₪1.05 at -70% |
 Norwegian Krone |
-50% 5,50 kr | $0.54 | +11.68% | $0.22 | 2,25 kr at -70% |
 Euro |
-51% 0,49€ | $0.57 | +16.68% | $0.26 | 0,23€ at -71% |
 British Pound |
-51% £0.44 | $0.59 | +20.48% | $0.30 | £0.23 at -71% |
 Polish Zloty |
-50% 2,24zł | $0.61 | +25.80% | $0.29 | 1,07zł at -70% |
 Swiss Franc |
-50% CHF 0.54 | $0.68 | +39.05% | $0.37 | CHF 0.30 at -70% |
Valve suggested prices are shown on package pages.
Price history
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Tags
Categories
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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 ( |
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| osarch | empty string | |||||||||||||||
| community_hub_visible | Yes | |||||||||||||||
| Social Media | https://www.youtube.com/@newdawngamestudio/ |
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| Primary Genre | Casual (4) | |||||||||||||||
| Store Genres | Casual (4), Indie (23) | |||||||||||||||
| Steam Release Date | 10 March 2022 – 14:15:02 UTC ( |
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| Store Asset Modification Time | 12 July 2025 – 12:43:35 UTC ( |
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| library_assets |
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| 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 ( |
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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 |
Assets
Load all asset images| clienticon | f1e507da3e1ed8472813565d703bc5530792eedd | ||||||||||||||||||||||||
| clienttga | 7fe186c0a16c60a272e3d7598027c3e6c4eca3bd | ||||||||||||||||||||||||
| icon | 9677bca58fc76654f32536b486a1d4555c1a2605 | ||||||||||||||||||||||||
| logo | 2ff3b21a4a20838e88ac3d4c5b31317191797df7 | ||||||||||||||||||||||||
| logo_small | 2ff3b21a4a20838e88ac3d4c5b31317191797df7_thumb | ||||||||||||||||||||||||
| small_capsule |
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| header_image |
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| library_assets_full |
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| Assets |
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| trailer_name | One Line: Letters and Codes Trailer |
| trailer_category | 1 |
| trailer_480p ↴ | |
| video/webm | 256877510/movie480_vp9.webm |
| video/mp4 | 256877510/movie480.mp4 |
| trailer_max ↴ | |
| video/webm | 256877510/movie_max_vp9.webm |
| video/mp4 | 256877510/movie_max.mp4 |
| microtrailer ↴ | |
| video/webm | 1871500/446402/10af7285a1f376166a96a60ddc7ac2ae7b6b83e4/1751041455/microtrailer.webm |
| video/mp4 | 1871500/446402/10af7285a1f376166a96a60ddc7ac2ae7b6b83e4/1751041455/microtrailer.mp4 |
| adaptive_trailers ↴ | |
| dash_av1 | 1871500/446402/10af7285a1f376166a96a60ddc7ac2ae7b6b83e4/1751041455/dash_av1.mpd |
| dash_h264 | 1871500/446402/10af7285a1f376166a96a60ddc7ac2ae7b6b83e4/1751041455/dash_h264.mpd |
| hls_h264 | 1871500/446402/10af7285a1f376166a96a60ddc7ac2ae7b6b83e4/1751041455/hls_264_master.m3u8 |
| screenshot_medium | 256877510/movie.293x165.jpg |
| screenshot_full | 256877510/movie_full.jpg |
| all_ages | true |
| is_highlight | true |
| timestamp | 3 May 2023 – 13:35:50 UTC |
