Steam app 2770160 · updated 12 Sep 2026, 22:06 UTC
"Thermodynamic" puzzle where Maxwell's demon does work of block-pushing. Deal those hot blocks with cold blocks so that the demon doesn't get burnt.
325 hourly samples, with the daily peak drawn over them. Weekends are shaded.
26 months, August 2024 to September 2026. The highest number of people in the game at once, each month, on a time axis -- a gap in the record stays a gap.
The highest number of people in the game at once, each month. Four, because four is as far back as the source keeps anything finer than one figure a month.
31 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.
31 days as the curve, each the highest figure that day. Behind it, 185 hourly samples from 13 Aug, which is as far back as the source keeps every hour. Weekends are shaded.
12 days as the curve, each the highest figure that day. Behind it, 140 hourly samples. Each dip is a night. Weekends are shaded.
Maxwell's puzzling demon was released on 29 Aug, 2024.
| Language | Full audio |
|---|---|
| Japanese | |
| English | |
| Simplified Chinese | |
| Traditional Chinese | |
| Korean |
A blank audio cell means full audio was not marked in the returned language list.
24 achievements in total.
50 developer announcements, Oct 2024 to Aug 2026 · times in UTC
Levels Update I've made some adjustments so that players won't get stuck in w9. Changed 9-11 to make it easier to find the required behavior. Added hints on how to move blocks to 9-15?. Adjusted the difficulty of 9-16.
Patch notesLevel Updates Changed 9-14, 0-4, 0-23 and 0-α. Fixed and Adjusted the difficulty of 0-9 (reaching 0-13, clearing 0-14, clearing 0-9 and reaching 0-A). Fixed w0 to prevent an alternative solution by exiting from right side of 0-9. Updated…
Patch notesLevel Updates Added 6-21 (reaching 6-22). Replaced 0-λ group with new puzzles. Changed 8-3 to a simplified version of the old 0-λ group. Changed w6 (clearing w6 and reaching 0-η). Adjusted the difficulty of 3-8. Slightly modified the…
Patch notesLevels update Changed entering 0-I, clearing 0-I and clearing 0-K. Changed B-23. Slightly changed 0-E. Improved the appearance of B-17 and B-27. The solutions remain unchanged.
Patch notesLevels update Added some steps to B-24 (clearing B-24?₁) and B-31 (entering B-P). Improved 3-3 as a tutorial.
Patch notesLevels update Changed 0-ι (entering 0-ι₂), 0-π₃, 0-π₄, A-28, B-11 and B-15. Fixed 4-8? and 9-N to prevent unintended solutions.
Patch notesLevels update Added 0-J. Changed entering 9-O, entering 0-ι₂ and A-20. Slightly changed 9-24, 0-16, 0-ν and 0-ξ. Fixed 0-15?₅ and entering 0-20 to prevent unintended solutions. Adjusted the difficulty of 4-9?, 0-16?, 0-17?, 0-κ and A-15.…
Patch notesLevels update Replaced B-N with a new puzzle. Reworked B-13 again, as many preferred the appearance (the question mark-shaped levels) before the change in v.1.5.16. The level is now a bit harder Fixed 9-22? to prevent an unintended…
Patch notesLevels update Modified 2-2 (2-A), 4-14? and 6-11 to adjust difficulty. Fixed 9-11? to prevent an unintended solution. Fixed 9-N to prevent an unintended movement. (The solution remains unchanged.)
Patch notesLevels update Modified 5-10, 8-15?, and 0-E to adjust difficulty. Adjusted 8-I and 8-J. (the solutions remain largely unchanged) Announcement The store page for my new puzzle game, Tiling Town, is now live! I'm currently working on a demo…
Patch notesLevels update Changed the terrain around 4-16 in w4. Changed 7-A. Adjusted the difficulty of 7-15? and B-2. Fixed an unintended solution for 6-14?₁.
Patch notesLevels update Fixed an unintended change to the starting point of w6 in v1.5.17. Adjusted 6-7 considering difficulty. Changed and Rearranged levels in w7 based on difficulty. Changed 7-8, 7-20 (old 7-19), 7-E (old 7-B) and 7-J. Moved old…
Patch notesLevels update Changed 1-4, 2-12, 5-11?, 5-15, 6-B and 9-12. Adjusted the appearance of w6, 6-11, 8-17, 0-9?₁, 0-γ, 0-δ₂, B-5?, B-C and B-I.
Patch notesLevels update Changed 4-12 (swapped with 4-11) and 4-F (swapped with 4-E). Adjusted B-13 to reduce difficulty.
Patch notesLevels update Changed the order of descriptions in w7?. Other changes To prevent confusion, descriptions in the hint worlds will now be unlocked based on your progress.
Patch notesLevels update Slightly changed 2-14, 2-20? and w5?₂₅. Changed w0 to clearly indicate that pushing the outer wall does not lead to completing the level. Other changes Corrected some text. Announcement It's the first anniversary of Maxwell's…
muratsuboLevels update Rearranged some levels in w2 (2-3, 2-4, 2-5, 2-19 and 2-20) to be in order of difficulty. Changed w3?₁ to more detailed content. Adjusted the number of levels required to clear w5, which makes it impossible to skip the gimmick…
Patch notesLevels update Slightly changed 3-G again. Added 6-G and 8-C.
Patch notesLevels update Slightly changed 3-G. Adjusted 3-11?, 5-6?, 6-12? and w5?₁₆.
Patch notesLevels update Fixed 4-9, B-3 and B-23 to prevent unintended solutions. Adjusted 1-15 and 5-1?.
Patch notesLevels update Slightly simplified 3-11 and 3-12. Changed 3-15 and 3-16.
Patch notesLevels update Changed 9-22 and B-31. Fixed A-A to prevent an unintended solution. Other changes Fixed incorrect behavior of pistons destroyed by the 4th temperature, which could have occurred after 9-21.
Patch notesLevels update Changed w9?₁₄. Fixed w9 (the path to 9-E and 0-ξ), A-41 and B-I to prevent unintended solutions.
Patch notesLevels update Fixed 6-O and A-Q to prevent an unintended solution. Improved 9-7?, 9-10?, 9-11? and 9-12?.
Patch notesLevels update Changed 8-18?. Other changes Updated the demo version to v1.2.0 - added the hint feature and support for Chinese and Korean.
Patch notesLevels update Slightly changed w6 (reaching 6-7) and 8-G. Other changes Added "Korean" to the language settings.
Patch notesLevels update Fixed 7-19? and 9-22 to prevent unintended solutions.
Patch notesLevels update Changed how to reach 8-A and 0-ι. Adjusted the appearance of some levels. Other changes Fixed a bug related to the default language selection when creating new save data.
Patch notesLevels update Changed 8-M, 8-N and 8-O. Fixed 9-24 (reaching 9-O) and A-54 to prevent unintended solutions.
Patch notesLevels update Added 8-O. Fixed 8-N and A-L to prevent unintended solutions. Slightly changed 4-1, 5-18, 6-N and 6-O. Other changes Added "Simplified Chinese" and "Traditional Chinese" to the language settings.
Patch notes"Maxwell's puzzling demon" has been nominated for Thinky Awards 2024 in the following 4 categories! Game of the Year Best Challenging Game Most Innovative Game Best Aha Moment Game of the Year has the community awards where anybody can…
muratsuboLevels update Added A-24 and A-46. Changed 4-10 and how to reach 5-I. Fixed 9-D to prevent an unintended solution. Adjusted some hint levels.
Patch notesLevels update Fixed 2-D, 3-A, 3-B, w7?₆, 9-17 and 0-μ to prevent unintended solutions. Rearranged levels in w2 and add new level as 2-9 to adjust difficulty. Changed 9-24 to adjust difficulty. Adjusted the appearance of some levels.
Patch notesLevels update Adjusted 6-12? and 8-J. Fixed A-Q to prevent an unintended solution. Other changes Fixed a problem in which the screen was always fixed to the foremost when in full-screen mode.
Patch notesLevels update Adjusted 0-15?₆, 0-21? and 0-26?. Fixed 0-19 to prevent an unintended solution.
Patch notesLevels update Adjusted 5-17?, 8-11?, 8-12?, 8-19 and w8 (Reaching 8-20).
Patch notesLevels update Fixed B-27 to prevent an unintended solution.
Patch notesLevels update Adjusted 6-20?, 7-11?, 7-20, B-24 and B-I.
Patch notesLevels update Slightly Changed 2-7? and B-15. Fixed B-G to prevent an unintended solution. その他の更新 Fixed an issue where cloud saving did not work properly after implementing save slots in v1.4.0.
Patch notesLevels update Fixed B-3, B-8 and B-11 to prevent unintended solutions. Adjusted B-7, B-9, B-18 and B-K.
Patch notesExtra contents New levels await you at the far right of w0. They are very challenging, but I hope you enjoy them. Levels update Added A-36 and A-37. Adjusted 2-3?, 2-7?, 2-14?, 4-8, 5-7?, 5-11?, 7-A, 7-H and 0-26?. Other changes The display…
muratsuboLevels update Fixed 6-M (reaching 6-N) and A-48 to prevent unintended solutions.
Patch notesLevels update Fixed A-26, A-39 and A-60 to prevent unintended solutions.
Patch notesExtra contents New levels await you at the far right of w0. Levels update Fixed 0-20 to prevent an unintended solution. Other changes After reaching 6-7, you can hover the mouse over the piston to see the content.
muratsuboLevels update The hint feature is now available in all the worlds. Add 0-23, 0-24, 0-25 and 0-26. Fixed 6-M, 6-N, 6-O and 9-M to prevent unintended solutions.
Patch notesLevels update The hint feature is now available in w8. Changed 8-3, 8-8 and 9-9. Fixed 4-19?, 8-5 and 9-G to prevent unintended solutions.
Patch notesLevels update The hint feature is now available in w7. Changed 7-17. Fixed 4-F and 8-4 to prevent unintended solutions. Other changes Removed noise from some SEs.
Patch notesLevels update The hint feature is now available in w6. Changed 6-2, 6-5, 6-7, 6-8 and 6-17. Other changes Implemented dark theme (as an experimental feature.)
Patch notesLevels update The hint feature is now available in w5. Note that w5? has not only hint levels, but also 15 bonus levels. Changed 5-3, 5-5, 5-22 and 6-K.
Patch notesLevels update The hint feature is now available in w4. Slightly changed 3-18, 3-18?, 3-19 and 3-H. Adjusted ?₁₄, ?₂₀, ?₂₁, ?₂₂ and ?₂₃ in w3?. Other changes The animation is no longer performed when redoing. Corrected some text.
Patch notesWhat Steam runs, and with what. Straight from the app configuration.
| Description | Executable | Arguments | Platform | |
|---|---|---|---|---|
| Launch | Maxwell's_demon.exe | any |
The folders Steam Cloud syncs. The root is a token Steam uses for a location on your own machine, not a path this page can know.
| Root | Folder | Files |
|---|---|---|
WinAppDataLocal | maxwells_puzzling_demon/save/{64BitSteamID} | * and below |
It runs on public data and somebody's spare time.
https://paypal.me/KintaroPalPay[email protected]0x4d559C765AA8BFe336E36d5b76024926767eD38dTJtctWU9uetJaTBoSybd1RErW7n9duTKVG