CastleStorm — cheap CD keys, compare prices
Is it worth buying?
- Reviews are solid. (Metacritic 73 · Steam 89%)
- 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
A strategy-action title blending 2D physics-based destruction with tower defense and brawler combat. You defend your castle, launch projectiles, and topple enemy fortifications in a genre mashup inspired by knocking down childhood LEGO towers.
Did you know?
Developed and published by Zen Studios, best known for its digital pinball titles such as Zen Pinball and Pinball FX.
Best price today
€1.19
all-time low: official €1.69 · keyshop €1.15 near low
On Steam: €2.99 — you save 60% here
The cheapest CastleStorm key right now costs €1.19 at Kinguin — the best of 11 compared offers. The lowest price we have recorded for this game: €1.15. The cheapest official store price is €1.69 at Fanatical. — the best offer is €0.50 (30%) cheaper.
The average low over the past 5 months was €1.58.
↳ chosen by the region label on the key — not a guarantee
Prices as of
GameSeal Marketplace
Fanatical Official store
Kinguin Marketplace
Steam Official store
Fanatical Official store
G2A Marketplace
No offers match these filters — try widening them.
Listed seller price shown — payment fees may vary by method.
There are also offers of another kind (Gift) — show (1)
These are not ordinary keys. A gift is usually region-locked and arrives through someone else's account — if the region does not match, the game will not activate. An account means you get someone else's login: the game never becomes yours, and it breaks Steam's rules. A DLC or a bundle is not the base game. That is why none of them count towards the price at the top of the page.
CastleStorm prices by store 8
| Store | Type | Price |
|---|---|---|
| Kinguin | Marketplace | €1.19 |
| GameSeal | Marketplace | €1.27 |
| Driffle | Marketplace | €1.34 |
| Gamivo | Marketplace | €1.40 |
| K4G | Marketplace | €1.45 |
| Fanatical | Official store | €1.69 |
| G2A | Marketplace | €2.29 |
| Steam | Official store | €2.99 |
Lowest — official stores
€1.69
Sept 2026
Lowest — keyshops
€1.15
Aug 2026
Price history
last 89 daysMonthly price lows
| Month | Lowest official | Lowest keyshop |
|---|---|---|
| Oct 2026 | €1.69 | €1.19 |
| Sept 2026 | €1.69 | €1.21 |
| Aug 2026 | €2.09 | €1.15 |
| Jul 2026 | €2.19 | €1.24 |
| Jun 2026 | €9.99 | €3.10 |
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, GameSeal, Driffle, Gamivo, K4G, Fanatical, G2A, Steam
Price alert Catch alert Price alert
Confirm in our Telegram bot — no account, no spam.
All-time low so far: €1.15
System requirements
| Minimum | Recommended | |
|---|---|---|
| OS | Windows XP/Windows Vista/Windows 7/Windows 8 | Windows XP/Windows Vista/Windows 7/Windows 8 |
| Processor | Single Core CPU @ 1.6GHz | Dual Core CPU @ 2.00GHz |
| Memory | 512 MB RAM | 1024 MB RAM |
| Graphics | GeForce 6600 / Radeon 9800 / Intel HD 2000 | GeForce 8600 / Radeon HD 3670 / Intel HD 4000 |
Similar games
Video reviews
5:07 CastleStorm - First Impressions & "Review" - XBLA
Maka91Productions
5:48 CastleStorm Nintendo Switch Review
Nintendo World Report TV
2:58 Castlestorm | Destructoid Review
Destructoid
Reviews are made and published by independent YouTube channels; they load only on click.
About this game — FAQ
Does CastleStorm have co-op?
Yes, CastleStorm has a co-op mode.
Does CastleStorm have multiplayer?
Yes, CastleStorm has multiplayer.
Can CastleStorm be played single-player?
Yes, besides multiplayer modes, CastleStorm can also be played solo (single-player).
Does CastleStorm support a controller/gamepad?
Yes, CastleStorm has full controller support.
What languages does CastleStorm support?
CastleStorm is available in: English, German, French, Italian, Spanish - Spain, Hungarian, Japanese, Russian.
Can CastleStorm be played co-op via Remote Play Together?
Yes — Steam Remote Play Together lets you invite friends to play local modes online without them owning the game.
Does CastleStorm use Steam Cloud saves?
Yes, CastleStorm uses Steam Cloud, so your saves sync across devices.
FAQ
Where is the cheapest place to buy a CastleStorm key?
The cheapest CastleStorm key is currently sold by Kinguin for €1.19. That is the best of 11 offers we compare; prices are refreshed regularly. The lowest price we have ever recorded for this game: €1.15.
How much does CastleStorm cost?
CastleStorm currently costs from €1.19 — the cheapest offer across the stores we track. For comparison, the game costs €2.99 on Steam, so buying a key saves you about 60%.
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.