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THE MULLER-POWELL PRINCIPLE

THE MULLER-POWELL PRINCIPLE

Welcome to a breathtaking storyline full of portals, solving puzzles with an energy-absorbing weapon, and other adventures in a sci-fi atmosphere! Can you travel through parallel dimensions and uncover the secrets of your past?

Released Nov 29, 2023 Developer Three Dots Games Publisher Take Aim Games Platforms Windows ExplorationPuzzleAction-AdventureFirst-PersonHorror
View on Steam ↗ $14.99 (US · as of 2026-09-25)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-02 · quoted reviews as of 2026-05-13.

72.5%positive367 reviews
Recommended · 0 found this helpful

“Played the game again on 4-1-26 Really good game. Very enjoyable .. and puzzles ... and more puzzles .. did i mention puzzles and doors and blue and amber electricity? yes those are puzzles too ... if you love puzzles as much as I Don't!! then this game is for you.. Surprisingly…”

— a player, Steam review · 5 hrs played
Recommended · 0 found this helpful

“Its ok. Graphics are good. Some of the puzzles are pretty frustrating. Maybe something to try if its cheap.”

— a player, Steam review · 14 hrs played
Read more reviews ↗

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-19.

45achievements
12.2%median completion
1.9%rarest: This has gone too far
69.6% of players 65.7% of players 63.9% of players 49.2% of players 28.5% of players 25.3% of players 24.3% of players 24.2% of players 20.3% of players 19.2% of players 19.1% of players 18.7% of players 17.3% of players 15.9% of players 15.8% of players 15.6% of players 15.2% of players 14.5% of players 14.1% of players 13.4% of players 12.7% of players 12.4% of players 12.2% of players 12.1% of players 11.7% of players 11.3% of players 10.6% of players 9.9% of players 9.0% of players 7.5% of players 6.5% of players 5.3% of players 4.1% of players 3.4% of players 2.8% of players 2.5% of players 2.5% of players 2.4% of players 2.3% of players 2.2% of players 2.2% of players 2.1% of players 2.1% of players 2.1% of players 1.9% of players 69.6% 0% most earned rarest
Almost everyone has
69.6%Escape from Delta — Beat the prologue
65.7%Old friend — Find the transdimensional radio
63.9%A gift from the past — Get the Photon Gun
Rarest badges of honor
1.9%This has gone too far — Hidden achievement
2.1%What else are these flamethrowers good for? — Hidden achievement
2.1%Meet me on the roof — Hidden achievement

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 2026-09-25 21:36 UTC
$7.49lowest since tracking began2026-09-21
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 09-16 09-25

Latest official news

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

Sep 21, 2026
The Director's Cut is OUT!

The Director's Cut version of THE MULLER-POWELL PRINCIPLE is now available on Steam, featuring various bugfixes, optimizations, gameplay and narrative revisions and an overall updated experience. We'v

Aug 27, 2026
We've got some news - The Director's Cut will be out on September 21st

Hello everyone! In our previous post , we shared the news that the rights to the game are fully back in our hands, and we are hard at work on the biggest update in the project's history — the Director

Jul 20, 2026
TMPP is back! Announcing the Director’s cut and settlement with the publisher

Our game is back! Hello, everyone! We have great news for you. Long story short, we've been in a legal battle with our publisher for the past two years. We almost lost our IP and rights to the game. H

Mar 20, 2024
Hurry, it's the last day of the Spring Sale!

Hey, guys! Only until tomorrow can you buy your favorite games at an incredible discount! THE MULLER-POWELL PRINCIPLE is now available at 35% off, offering a fantastic deal for all of those who have b

Jan 20, 2024
Hotfix is Live!

Good day, everyone, we've just released another hotfix for THE MULLER-POWELL PRINCIPLE! Among other things, we changed the design of the barrels, fixed some issues with the generators, improved dialog

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Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-05-13.

GenresAction, Adventure, Indie
Player tagsExploration · Puzzle · Action-Adventure · First-Person · Horror · Surreal · Action · Story Rich · Multiple Endings · Narration · Logic · Sci-fi (SteamSpy community voting)
FeaturesSingle-player · Steam Achievements · Full controller support · Steam Cloud · Family Sharing
LanguagesEnglish * , Russian *
ControllerFull support
Achievements45
Minimum system requirements (PC)

Minimum: Requires a 64-bit processor and operating system OS *: Windows 7/8/10 (64-bit) Processor: Quad-core Intel or AMD, 3 GHz or faster Memory: 8 GB RAM Graphics: GeForce GTX 970 or AMD equivalent Storage: 20 GB available space