Castle In The Darkness — cheap CD keys, compare prices
Is it worth buying?
Reviews are solid (Metacritic 76 · Steam 77%) · The price is above its low (was €7.49), but within a reasonable range Notify me on a drop
About the game
Castle In The Darkness is a fast-paced action exploration platformer with RPG elements, developed by Matt Kap in collaboration with Nicalis and published in 2015. Inspired by classics like Castlevania and Metroid, it offers challenging gameplay packed with secrets and a tone that pays homage to early video game design.
Did you know?
Castle In The Darkness explicitly draws inspiration from the Castlevania and Metroid series, positioning itself as a tribute to classic action-exploration platformers.
Best price today
€9.99
· · check “Region” on the seller’s page
Steam · Official store · Steam
Global key · check “Region” on the seller’s page
You pay Steam directly · same price as on their site
Notify me when it drops below €8.99
- On Steam
- €9.99
- all-time low
- €7.492 Oct
- Average low, 5 mo.
- €9.49
The cheapest Castle In The Darkness key right now costs €9.99 at Steam. (Prices as of )
Offers 1 · PC · from €9.99
Prices as of
No offers match these filters — try widening them.
Listed seller price shown — payment fees may vary by method.
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Lowest official since we started tracking (Jul 2026)
€7.49
Oct 2026
Monthly price lows
| Month | Lowest official | Lowest keyshop |
|---|---|---|
| Oct 2026 | €7.49 | — |
| Sept 2026 | €9.99 | — |
| Aug 2026 | €9.99 | — |
| Jul 2026 | €9.99 | — |
| Jun 2026 | €9.99 | — |
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
System requirements
| Minimum | Recommended | |
|---|---|---|
| OS | Windows XP or later | Windows 7 or 8 |
| Processor | Pentium 4 or higher | — |
| Memory | 1 GB RAM | 2 GB RAM |
| Graphics | 256 MB or higher | 1 GB |
| DirectX | Version 9.0 | Version 10 |
| Storage | 120 MB available space | 120 MB available space |
Similar games
Video reviews
3:23 Castle In The Darkness REVIEW! (Buy, Rent, Or Pass?)
MrMattyPlays
3:42 Castle in the Darkness review - Steamdrunk
SNES drunk
11:12 CASTLE IN THE DARKNESS - Gameplay do Excelente Metroidvania!
BRKsEDU
Reviews are made and published by independent YouTube channels; they load only on click.
About this game — FAQ
Can Castle In The Darkness be played single-player?
Yes, Castle In The Darkness is a single-player game.
What languages does Castle In The Darkness support?
Castle In The Darkness is available in: English.
FAQ
Where is the cheapest place to buy a Castle In The Darkness key?
The cheapest Castle In The Darkness key is currently sold by Steam for €9.99. The lowest price we have ever recorded for this game: €7.49.
How much does Castle In The Darkness cost?
Castle In The Darkness currently costs from €9.99 — 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.