Cavity Busters — cheap CD keys, compare prices
Is it worth buying?
- Reviews are excellent. (Steam 96%)
- 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
Cavity Busters is a roguelite bullet hell set inside a tooth-themed world, where players bite and gnaw their way through cavity-ridden foes. Wall-running and weaving through rooms thick with projectiles, they stomp enemies, grab power-ups, pick up strange afflictions as abilities, and fight through a swollen, body-shaped kingdom. The game was made by SpaceMyFriend and Ben Ridge, and published by SpaceMyFriend in 2022.
Best price today
€2.55
all-time low: official €2.55 · keyshop €160.84 near low
The cheapest Cavity Busters key right now costs €2.55 at Steam — the best of 3 compared offers. The lowest price we have recorded for this game: €2.55.
The average low over the past 4 months was €5.75.
Prices as of
Steam best price Official store
Fanatical Official store
No offers match these filters — try widening them.
Listed seller price shown — payment fees may vary by method.
Cavity Busters prices by store 3
| Store | Type | Price |
|---|---|---|
| Steam | Official store | €2.55 |
| Fanatical | Official store | €14.79 |
| Kinguin | Marketplace | €160.84 |
Lowest — official stores
€2.55
Oct 2026
Lowest — keyshops
€160.84
Jul 2026
Price history
last 89 daysMonthly price lows
| Month | Lowest official | Lowest keyshop |
|---|---|---|
| Oct 2026 | €2.55 | €160.84 |
| Sept 2026 | €12.79 | €160.84 |
| Aug 2026 | €3.83 | €160.84 |
| Jul 2026 | €3.83 | €160.84 |
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, Fanatical, Kinguin
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All-time low so far: €2.55
System requirements
| Minimum | Recommended | |
|---|---|---|
| OS | 7 | Win 10 |
| Processor | 1 GHz or faster | 2 GHz or faster |
| Memory | 1 MB RAM | 2 MB RAM |
| Graphics | 64mb | — |
| Storage | 150 MB available space | 200 MB available space |
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About this game — FAQ
Can Cavity Busters be played single-player?
Yes, Cavity Busters is a single-player game.
Does Cavity Busters support a controller/gamepad?
Yes, Cavity Busters has full controller support.
What languages does Cavity Busters support?
Cavity Busters is available in: English.
Does Cavity Busters use Steam Cloud saves?
Yes, Cavity Busters uses Steam Cloud, so your saves sync across devices.
FAQ
Where is the cheapest place to buy a Cavity Busters key?
The cheapest Cavity Busters key is currently sold by Steam for €2.55. That is the best of 3 offers we compare; prices are refreshed regularly. The lowest price we have ever recorded for this game: €2.55.
How much does Cavity Busters cost?
Cavity Busters currently costs from €2.55 — 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.