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KeyDwarf tracks listings. Nothing sold here.

ZERO PROTOCOL

In this immersive sci-fi thriller, you will experience the atmosphere of classic 3D games as you solve puzzles, follow an intriguing non-linear storyline, and engage in battles with monsters.

OfficialSep 26, 2024 · R_GamesActionAdventureFamily SharingFull controller supportSingle-playerWindows

Current best

$5.63

at Steam · 1h ago

All-time low

$5.63

Jul 23, 2026

Stores tracked

1

sources indexed

Review signal

84%

614 reviews

ZERO PROTOCOL cover

Current best · Steam

$5.63$11.99−53%

Observed 1h ago

View best listing

Current low target

$5.63 · matches the current indexed low

KeyDwarf only tracks observations — checkout happens on the store.

Tracked Stores

Best indexed price $5.63 at Steam.

1/1
S

Steam

BestOfficialIn stock

ZERO PROTOCOL · Region US · 1h ago

$5.63

was $11.99 · −53%

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

2 observations
Low $5.63
Best observed priceAll-time low

All-time low

$5.63

Jul 23, 2026 · Steam

12-week avg

$8.81

2 recent observations

Current vs low

At low

Current $5.63

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 ZERO PROTOCOL cheapest right now?

ZERO PROTOCOL is currently indexed at $5.63 from Steam. Publisher, direct storefront, or authorized retail source. Check the linked store's current terms before acting.

What is the historical low for ZERO PROTOCOL?

The indexed low for ZERO PROTOCOL is $5.63 from Steam, observed Jul 23, 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?

ZERO PROTOCOL has a best indexed review signal of 84%.

Can KeyDwarf notify me about a lower price?

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