- v1.1.0 Update - 25 July 2026
Solution Replays A solution replay is now saved whenever you solve a puzzle. You can visit the same level later to watch the replay. Rule Changes Some details of how the game mechanics work have changed, but most of these changes do not affect gameplay. Chapter 7 spoilers Calculation results can now have a black outline under certain conditions. No levels in the current version require this mechanic. Chapter 8 spoilers The numbers 1, 8, and 11 can now be read differently without being rotated. No levels in the current version require this mechanic. Chapter 9 spoilers Previously, brackets were consumed only once even when multiple matches occurred simultaneously. Their consumption now varies depending on the number of matches. A new puzzle involving this change has been added. Puzzle Changes Minor adjustments: 4-12-H, 5-3, 7-12-H, 7-7, 7-7-H Reduced difficulty: 7-11 Increased difficulty:…
- v1.0.11 update - 28 June 2026
Puzzle Changes Minor adjustments: 9-inv3-H, 9-20-H Removed unintended solutions: 5-inv3, 5-inv3-H, 7-18, 8-9, 8-15, 9-8, 9-18
- v1.0.10 update - 21 June 2026
Puzzle Changes Minor adjustments: 9-inv3, 9-14-H, 9-20 Reduced difficulty: 0-1-H Increased difficulty: 7-9 Other Changes Adjusted cursor visibility when using accessibility settings
- v1.0.9 update - 14 June 2026
Puzzle Changes Minor adjustments: 7-12-H, 7-14-H, 9-14-H Removed unintended solutions: 1-15, 6-8, 9-14 Renumbered 7-21 to 8-15. The level layout and intermediate solution steps have been changed. Adjusted the level numbering in Chapter 8. Main path levels now have lower numbers than optional ones.
- v1.0.8 update - 11 June 2026
Puzzle Changes Removed unintended solutions: 1-15, 3-14, 9-14, 9-inv25
- v1.0.7 update - 8 June 2026
Puzzle Changes Minor adjustments: 4-4, 9-26 Removed unintended solutions: 1-15, 9-12, 9-14, 9-22 Bug Fixes Fixed visual bug in Chapter 8 Fixed the bug for achievement E9 unlock conditions.
- Official Discord Server Launch - 6 June 2026
Hello everyone,Thank you for your continued interest in E9uations.I have launched an official Discord server to create a space where you can connect with us and share your feedback. Whether you would like to share your thoughts on the game or simply discuss it with other players, please feel free to join us at the link belowhttps://discord.com/invite/qfTk52DSryThank you.
- v1.0.6 update - 5 June 2026
Puzzle Changes Minor adjustments: 3-13-H, 9-27, 9-inv4 Reduced difficulty: 3-11-H, 3-14, 8-7 Increased difficulty: 8-7-H Removed unintended solutions: 6-10, 9-22, 5-inv4 Bug Fixes Fixed visual bug in Chapter 8
- v1.0.5 update - 3 June 2026
Chapter 8 Improvements The gimmicks in Chapter 8 have been slightly altered in how they work. This is part of an effort to improve visual representation, and does not change the way existing puzzles are solved. Art related to Chapter 8 has been updated. Puzzle Changes Minor adjustments: 8-4, 8-4-H, 8-5-H, 8-6-H, 8-8, 0-1-H Reduced difficulty: 7-5, 8-16 Increased difficulty: 8-14 Removed unintended solutions: 9-inv22-H Bug Fixes Fixed visual bugs related to gimmicks in Chapter 8
- v1.0.4 update - 31 May 2026
Puzzle Changes Minor adjustments: 4-8, 4-15 Reduced difficulty: 5-9, 6-8 Removed unintended solutions: 4-9, 4-14, 7-11, 8-2-H Other Changes Added microfeedback for gimmicks in Chapter 5
- v1.0.3 update - 30 May 2026
Puzzle ChangesMinor adjustment: 7-4, 7-4-H, 8-2, 8-2-H Reduced difficulty: 8-6, 8-6-H Bug FixesFixed freezing issue when returning from the credits screenFixed an error in the unlock condition for Achievement #4
- v1.0.2 Update - 30 May 2026
Puzzle Changes Minor adjustment: 7-13-H Reduced difficulty: 3-03, 3-14 Other Changes Added a button on the title screen to view the credits.
- v1.0.0 update - 28 May 2026
This is an update accompanying the full release.Compared to the previous demo, the following changes have been made.Art, UI, and music revisionsDifficulty adjustments for some puzzlesVarious other bug fixes
- E9uations is now available! - 28 May 2026
The demo has also been updated to coincide with the full release. We are thrilled to officially launch this game.
- v0.4.0 update - 20 January 2026
0.4.0 UpdateWe're working on the main game content, but there are some changes that also apply to the demo version.ArtworkFixed the title screen breaking in windowed modeUpdated number fontsRemoved the token color customization feature as it made puzzles harder to read. Please use accessibility settings if you have difficulty distinguishing colors.Gameplay ImprovementsFixed delays when entering puzzlesImproved keyboard and gamepad controlsEnhanced mouse interaction with UI elementsOther FixesApplied various optimizationsFixed miscellaneous bugs
- Release Postponed to 2026 - 24 November 2025
Hi everyone, Quick update on E9uations' release: I've decided to push the launch from 2025 to H1 2026. I want to make sure the game delivers the quality experience you deserve, and it needs more time for balancing, bug fixes, and finalizing the ending sequence. Sorry for the wait - I promise it'll be worth it! Thanks for your patience and support.
- v0.3.0 update - 11 October 2025
Puzzle UpdatesModified Chapter 1 and 2 hubsChanged difficulty of some puzzlesNew FeaturesYou can now navigate directly to sub-puzzles from the chapter hub menuGamepad support addedControl keys can be remapped in settingsOther ChangesBug fixesImproved input buffering mechanicsChanged how solved puzzles are displayed
- v0.2.5 Update - 25 July 2025
Graphics WorkNo more letterboxing in fullscreen modeModified settings UIChapter UpdatesReorganized Chapters 1 and 2Changed the method for solving chaptersPuzzle UpdatesFixed some tutorial puzzlesRemoved unintended solution for puzzle 1-15Added new puzzle 2-9Adjusted difficulty of puzzle 2-10
- v0.2.4 Update - 14 July 2025
Art ChangesModified the cursor to better match the atmosphereChanged the line designMade some UI modificationsBug fixesFixed a bug in Chapter 2 where control instructions wouldn't appear in certain situations
- v0.2.3 Update - 10 July 2025
Visual ImprovementsCleared puzzles in the hub are now easier to distinguishControl EnhancementsSmoother movement when changing directionsIncreased maximum movement speed (adjustable in settings)Puzzle ChangesRemoved puzzles with similar concepts from Chapters 1 and 2Added optional challenging puzzlesModified early Chapter 2 puzzlesChapter 2 FixesRotation feature explanation is now clearer in early Chapter 2 progression
