Don't Knock Twice — cheap CD keys, compare prices
Is it worth buying?
Reviews are mixed (Metacritic 56 · Steam 72%) · The price is above its low (was €2.83), but within a reasonable range Notify me on a drop
About the game
Don't Knock Twice is a first-person horror game based on a psychologically terrifying urban legend. One knock wakes her from her bed, two raise her from the dead. The game supports VR on HTC Vive and Oculus Rift, and was independently developed and published by Wales Interactive.
Did you know?
Its Metacritic score stands at 56, while its Steam rating shows 72% positive reviews out of 729 total (Mostly Positive).
Best price today
€3.05
· · check “Region” on the seller’s page
Kinguin · Marketplace · Steam
Global key · check “Region” on the seller’s page
You pay at Kinguin · the seller sends the key · same price as on their site
Notify me when it drops below €2.75
- On Steam
- €19.99−85 % here
- lowest in tracked period
- €2.8327 Aug
- Official now
- €19.99Steam
- Average low, 5 mo.
- €3.20
The cheapest Don't Knock Twice key right now costs €3.05 at Kinguin — the best of 3 compared offers. The cheapest official store price is €19.99 at Steam. (Prices as of )
Offers 3 · PC · from €3.05
Prices as of
No offers match these filters — try widening them.
Listed seller price shown — payment fees may vary by method.
Don't Knock Twice prices by store 3
| Store | Type | Price |
|---|---|---|
| Kinguin | Marketplace | €3.05 |
| K4G | Marketplace | €8.70 |
| Steam | Official store | €19.99 |
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Lowest official since we started tracking (Jul 2026)
€3.99
Jul 2026
Lowest — keyshops
€2.83
Aug 2026
Monthly price lows
| Month | Lowest official | Lowest keyshop |
|---|---|---|
| Oct 2026 | €3.99 | €3.03 |
| Sept 2026 | €3.99 | €2.98 |
| Aug 2026 | €3.99 | €2.83 |
| Jul 2026 | €3.99 | €3.18 |
| Jun 2026 | €3.99 | €4.73 |
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: Kinguin, K4G, Steam
System requirements
| Minimum | Recommended | |
|---|---|---|
| OS | Windows 7 64-bit | Windows 10 64-bit |
| Processor | Core i3 / AMD A6 2.4Ghz | Intel i5-4590 / AMD FX 8350 equivalent or greater |
| Memory | 4 GB RAM | 4 GB RAM |
| Graphics | NVIDIA GeForce GTX 260 / AMD Radeon HD 5750. OpenGL 3.3 | NVIDIA GeForce® GTX 970 / AMD Radeon™ R9 290 equivalent or greater |
| DirectX | Version 11 | Version 11 |
| Storage | 2 GB available space | 2 GB available space |
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About this game — FAQ
Can Don't Knock Twice be played single-player?
Yes, Don't Knock Twice is a single-player game.
Does Don't Knock Twice support a controller/gamepad?
Yes, Don't Knock Twice has full controller support.
What languages does Don't Knock Twice support?
Don't Knock Twice is available in: English, French, Italian, German, Spanish - Spain, Portuguese - Portugal, Russian, Simplified Chinese and 8 more.
Does Don't Knock Twice use Steam Cloud saves?
Yes, Don't Knock Twice uses Steam Cloud, so your saves sync across devices.
FAQ
Where is the cheapest place to buy a Don't Knock Twice key?
The cheapest Don't Knock Twice key is currently sold by Kinguin for €3.05. That is the best of 3 offers we compare; prices are refreshed regularly. The lowest price we have ever recorded for this game: €2.83.
How much does Don't Knock Twice cost?
Don't Knock Twice currently costs from €3.05 — the cheapest offer across the stores we track. For comparison, the game costs €19.99 on Steam, so buying a key saves you about 85%.
Is Kinguin an official store or a keyshop?
Kinguin is a keyshop (marketplace) where independent sellers list keys, so prices are often lower than in official stores. Every offer on ulov.gg is clearly labeled with its store type.
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.