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Mortal Sin

Mortal Sin is a chaotic, blood-soaked roguelike where skill is power, and overconfidence is death. Carve through procedurally generated nightmares with brutal melee and flashy, satisfying combos.

OfficialAug 29, 2025 · Nikola TodorovicActionIndieRPGFamily SharingFull controller supportWindows

Current best

$16.99

at GOG · Jul 13

All-time low

$16.99

Jul 8, 2026

Stores tracked

2

sources indexed

Review signal

94%

5,855 reviews

Mortal Sin cover

Current best · GOG

$16.99$24.99−32%

Observed Jul 13

View best listing

Current low target

$16.99 · matches the current indexed low

KeyDwarf only tracks observations — checkout happens on the store.

Tracked Stores

Best indexed price $16.99 at GOG.

2/2
G

GOG

BestOfficialIn stock

Mortal Sin · Region US · Jul 13

$16.99

was $24.99 · −32%

View listing
S

Steam

OfficialIn stock

Mortal Sin · Region US · Jul 8

$16.99

was $24.99 · −32%

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

3 observations
Low $16.99
Best observed priceAll-time low

All-time low

$16.99

Jul 8, 2026 · Steam

12-week avg

$19.66

3 recent observations

Current vs low

At low

Current $16.99

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 Mortal Sin cheapest right now?

Mortal Sin is currently indexed at $16.99 from GOG. Publisher, direct storefront, or authorized retail source. Check the linked store's current terms before acting.

What is the historical low for Mortal Sin?

The indexed low for Mortal Sin is $16.99 from Steam, observed Jul 8, 2026. The current indexed price is at that low, so KeyDwarf labels it "At indexed low".

Is the top source safe?

GOG 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?

Mortal Sin has a best indexed review signal of 94%.

Can KeyDwarf notify me about a lower price?

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