CIPHER ZERO — cheap CD keys, compare prices
Is it worth buying?
- Reviews are excellent. (Steam 90%)
- The price is at or near its all-time low — a good time to buy.
Estimate based on public reviews (Metacritic/Steam) and price history — the final call is yours.
About the game
CIPHER ZERO is a minimalist logic game built around figuring out the value of an unknown variable. Zapdot developed and published the title, which released in 2025.
Did you know?
On Steam, it has 90% positive reviews from 179 ratings.
Best price today
€5.37
all-time low: official €5.37 · keyshop €11.10 near low
The cheapest CIPHER ZERO key right now costs €5.37 at Steam — the best of 2 compared offers. The lowest price we have recorded for this game: €5.37.
The average low over the past 4 months was €6.72.
Prices as of
Steam best price Official store
No offers match these filters — try widening them.
Listed seller price shown — payment fees may vary by method.
CIPHER ZERO prices by store 2
| Store | Type | Price |
|---|---|---|
| Steam | Official store | €5.37 |
| Kinguin | Marketplace | €11.10 |
Lowest — official stores
€5.37
Jul 2026
Lowest — keyshops
€11.10
Aug 2026
Price history
last 89 daysMonthly price lows
| Month | Lowest official | Lowest keyshop |
|---|---|---|
| Oct 2026 | €5.37 | €11.10 |
| Sept 2026 | €5.37 | €11.10 |
| Aug 2026 | €10.75 | €11.10 |
| Jul 2026 | €5.37 | €11.55 |
Lowest in-stock price per month from our price history; the current month is the low so far.
How to activate your key
- Steam key — open the Steam client → Games → Activate a Product on Steam → enter the key. Stores with this activation: Steam, Kinguin
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All-time low so far: €5.37
System requirements
| Minimum | |
|---|---|
| OS | Windows 7 SP1+ 10, and 11, 64-bit versions only. |
| Processor | X64 architecture with SSE2 instruction set support |
| Memory | 2 GB RAM |
| Graphics | DX10, DX11, and DX12-capable GPUs |
| DirectX | Version 10 |
| Storage | 2 GB available space |
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About this game — FAQ
Can CIPHER ZERO be played single-player?
Yes, CIPHER ZERO is a single-player game.
Does CIPHER ZERO support a controller/gamepad?
Yes, CIPHER ZERO has full controller support.
What languages does CIPHER ZERO support?
CIPHER ZERO is available in: English, French, Italian, German, Spanish - Spain, Dutch, Korean, Polish and 6 more.
Does CIPHER ZERO use Steam Cloud saves?
Yes, CIPHER ZERO uses Steam Cloud, so your saves sync across devices.
FAQ
Where is the cheapest place to buy a CIPHER ZERO key?
The cheapest CIPHER ZERO key is currently sold by Steam for €5.37. That is the best of 2 offers we compare; prices are refreshed regularly. The lowest price we have ever recorded for this game: €5.37.
How much does CIPHER ZERO cost?
CIPHER ZERO currently costs from €5.37 — the cheapest offer across the stores we track.
Is Steam an official store or a keyshop?
Steam is an official store — keys come directly from the publisher or an authorized distributor.
Are keys from these stores legal?
Buying is legal — keys come from the grey market, so a small deactivation risk exists. So before paying, check the seller's buyer protection.
Which key region should I pick?
Global activates everywhere. Regional keys (Europe, North America, RU-CIS) only work on accounts from that region — use the Region filter to match your account.
What is an activation platform?
The service where the key activates — Steam, GOG, Epic or the publisher's platform. A key for one platform won't work on another, hence the separate filter.
What's the difference between editions?
Standard is the base game; Deluxe usually adds an expansion or bonus content. The edition filter shows exactly that variant, with no mixed prices.