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Maxwell's puzzling demon

Maxwell's puzzling demon

"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.

Released Aug 29, 2024 Developer muratsubo Games Platforms Windows PuzzleSokobanDifficultLogicAbstract
View on Steam ↗ $14.99 (US · as of 2026-09-26)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-04 · quoted reviews as of 2026-05-15.

98.1%positive421 reviews
Recommended · 1 found this helpful

“Insanely difficult Sokoban-like, one of the hardest games I've ever played. I didn't finish it, and I think I didn't even get halfway in. So, be warned about that. But if you're okay with the difficulty, this game is impressive. The levels are tightly designed, with a ton of aha…”

— a player, Steam review · 30 hrs played
Recommended · 0 found this helpful

“Quite possibly the most inaccurate application of the Casual genre tag in the entire Steam catalog.”

— a player, Steam review · 61 hrs played
Recommended · 0 found this helpful

“I am not smart enough for this game, but it was fun and the dev and community were responsive to questions!”

— a player, Steam review · 2 hrs played
Read more reviews ↗

Player activity

Monthly average concurrent players. Live data self-collected from the Steam API · history through 2026-07 via SteamCharts.

72all-time peak
0 25 50 2025 2026 27 avg · Jan 2025

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-26.

24achievements
5.9%median completion
1.2%rarest: The demon of dream
56.2% of players 31.7% of players 23.5% of players 21.2% of players 19.0% of players 15.9% of players 13.5% of players 12.1% of players 9.6% of players 8.3% of players 7.8% of players 6.1% of players 5.9% of players 4.1% of players 4.0% of players 3.1% of players 3.0% of players 2.9% of players 1.9% of players 1.9% of players 1.5% of players 1.4% of players 1.2% of players 1.2% of players 56.2% 0% most earned rarest
Almost everyone has
56.2%The world of temperature — Clear world 1.
31.7%The world of heat — Clear world 2.
23.5%The world of state — Clear world 3.
Rarest badges of honor
1.2%The demon of dream — Hidden achievement
1.2%The demon of information — Hidden achievement
1.4%Maxwell's puzzling demon — Clear all levels of world 0.

Price tracking

US-region pricing (USD), sampled twice daily by our own tracker since 2026-08-12. Steam prices vary by region — always confirm your local price on Steam.

$14.99current · sampled 2026-09-26 21:12 UTC
$14.99lowest since tracking began2026-08-12
US14.99 USD
EU14.79 EUR
UK12.79 GBP
Australia21.95 AUD
Canada19.49 CAD
Japan1,700 JPY
Brazil46.99 BRL
China58.00 CNY

Regional prices at last sample, in local currency — Steam sets each region's price independently.

China≈$8.6 Brazil Japan Canada US Australia EU UK≈$17

Cheapest → most expensive, converted to USD at ECB reference rates (2026-09-25). Relative comparison only.

$0 $10 $20 08-12 08-21 08-30 09-08 09-17 09-26

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Aug 31, 2026
Maxwell's puzzling demon v1.5.29

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 d

Aug 10, 2026
Maxwell's puzzling demon v1.5.28

Level 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

Jul 14, 2026
Maxwell's puzzling demon v1.5.27

Level 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 diffi

Jun 20, 2026
Maxwell's puzzling demon v1.5.26

Levels 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.

May 29, 2026
Maxwell's puzzling demon v1.5.25

Levels update Added some steps to B-24 (clearing B-24?₁) and B-31 (entering B-P) . Improved 3-3 as a tutorial.

Games like Maxwell's puzzling demon

From our knowledge graph — ranked by shared traits, not a black box. Each card says why it's here.

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Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-05-15.

GenresCasual, Indie
Player tagsPuzzle · Sokoban · Difficult · Logic · Abstract · 2D · Grid-Based Movement · Cute · Casual · Indie · Singleplayer (SteamSpy community voting)
FeaturesSingle-player · Steam Achievements · Steam Cloud · Family Sharing
LanguagesJapanese, English, Simplified Chinese, Traditional Chinese, Korean
Achievements24
Minimum system requirements (PC)

Minimum: OS: Windows 10 (64-bit) / Windows 11 Processor: intel / amd Graphics: any Storage: 100 MB available space Sound Card: any