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The Moonstone Equation

Help Alice find some answers as she joins a unique bunch of scientists, oddballs and theorists at a remote hilltop research facility to investigate some puzzling stone carvings. A single player puzzle/platform game about science and curiosity presented in a modern pixel art style.

OfficialAug 20, 2018 · Andy BuckAdventureIndieFamily SharingPartial Controller SupportSingle-playerWindows

Current best

$9.99

at Steam · Jul 5

All-time low

$9.99

Jul 5, 2026

Stores tracked

1

sources indexed

Review signal

75%

24 reviews

The Moonstone Equation cover

Current best · Steam

$9.99

Observed Jul 5

View best listing

Current low target

$9.99 · matches the current indexed low

KeyDwarf only tracks observations — checkout happens on the store.

Tracked Stores

Best indexed price $9.99 at Steam.

1/1
S

Steam

BestOfficialIn stock

The Moonstone Equation · Region US · Jul 5

$9.99

View listing
How trust is scored: KeyDwarf combines source type, known retailer posture, marketplace risk, activation-region warnings, and source transparency. Checkout and support still happen with the external seller.

Price History

1 observations
Low $9.99
Best observed priceAll-time low

All-time low

$9.99

Jul 5, 2026 · Steam

12-week avg

$9.99

1 recent observations

Current vs low

At low

Current $9.99

Recommendation

At indexed low

current indexed price matches the low

Lowest indexed daily price per currency. KeyDwarf tracks listings and does not sell keys.

Media

12 indexed

Common Questions

Where is The Moonstone Equation cheapest right now?

The Moonstone Equation is currently indexed at $9.99 from Steam. Publisher, direct storefront, or authorized retail source. Check the linked store's current terms before acting.

What is the historical low for The Moonstone Equation?

The indexed low for The Moonstone Equation is $9.99 from Steam, observed Jul 5, 2026. The current indexed price is at that low, so KeyDwarf labels it "At indexed low".

Is the top source safe?

Steam is labeled "Official store" in the index. KeyDwarf tracks the listing and source risk, but checkout and support stay with the external store.

What is the review signal?

The Moonstone Equation has a best indexed review signal of 75%.

Can KeyDwarf notify me about a lower price?

Use the alert target control on this page to save a watch target after sign-in.