What it likely sold — estimate, stated as a range on purpose
Lifetime units: ~12.2k
(P10–P90: 4.9k – 26.8k)
Gross revenue: ~$150k
(P10–P90: $59.9k – $329k)
Estimate, method v1.0 — before Steam's ~30% share, refunds and VAT. The band approximates where about 8 in 10 comparable games land in published studies; some sit outside it. Our own hit rate goes on the accuracy ledger once measured. How we estimate
Estimates are statistical inferences from public data. They are not sourced from Valve or the developer and may deviate materially from actual results. Do not rely on them for investment or contractual decisions. As of Oct 1, 2026.
Player voice — measured shares of Steam thumbs, never a model
Story & writing58% positive · 93 mentions
“What if you mix Half-Life, Portal, and a little of BioShock? You get Muller-Powell. A good game, with a ton of references to the games listed above. The story is quite convoluted, but at the same time interesting. I read all the notes and…”
Recommended · Steam review · Jan 2026 · 13 h played · Report / request removalVisuals & audio77% positive · 79 mentions
“What if you mix Half-Life, Portal, and a little of BioShock? You get Muller-Powell. A good game, with a ton of references to the games listed above. The story is quite convoluted, but at the same time interesting. I read all the notes and…”
Recommended · Steam review · Jan 2026 · 13 h played · Report / request removalGameplay & mechanics57% positive · 79 mentions
“What if you mix Half-Life, Portal, and a little of BioShock? You get Muller-Powell. A good game, with a ton of references to the games listed above. The story is quite convoluted, but at the same time interesting. I read all the notes and…”
Recommended · Steam review · Jan 2026 · 13 h played · Report / request removalPerformance & stability57% positive · 30 mentions
“Pros: • Generally good game with Half-Life 1 vibes. Although it reminds me Soma and Moons of Madness too. Cons: • Some game-breaking bugs • Some unnecessarily high difficulty peaks Summary: An OK game, but require some polishing. And…”
Recommended · Steam review · Oct 2025 · 13 h played · Report / request removalPrice & value59% positive · 27 mentions
“The Muller-Powell principle, it's a soft mix of puzzles and walkathon/mini-novel. I'll give a mini-dive into each and tell you my thoughts at the end, so skip there if you don't care. Puzzles - I actually like the core mechanic of the…”
Recommended · Steam review · Jan 2026 · 7 h played · Report / request removalControls & UI26% positive · 19 mentions
“The game is worth the money. Good puzzles, there are some new mechanics. Moreover, the plot is nice and you have a few choices in game. Only the control bothered me a bit, but I handled it.”
Recommended · Steam review · Oct 2025 · 8 h played · Report / request removalContent & longevity50% positive · 16 mentions
“Great story concept that starts getting "disentangled". The sci-fi premise and dimensional travel story are genuinely unique and interesting in the beginning then degrades and goes downhill. The Muller-Powell Principle COULD HAVE BEEN a…”
Not recommended · Steam review · Aug 2026 · 12 h played · Report / request removal239 recent English reviews stored · topics keyword-matched · topics under 12 mentions stay hidden · methodology
Reviews are shown as published on Steam, including reviews from key activations and free copies — so percentages here can differ from the score on the Steam store page. GameTrend does not check whether reviewers bought or played the game.