The Binding of Isaac — cheap CD keys, compare prices
Is it worth buying?
- Reviews are excellent. (Steam 95%)
- The price is well above its low (was €1.32) — worth waiting for a drop or setting an alert. Notify me on a drop →
Estimate based on public reviews (Metacritic/Steam) and price history — the final call is yours.
About the game
The Binding of Isaac is a roguelike action-adventure in which the boy Isaac flees his fanatical mother into randomly generated basements teeming with grotesque enemies. You fire tears, collect bizarre game-changing items and battle through ever-new room layouts. Its dark religious themes and immense variability made it a cult roguelike classic.
Did you know?
The Binding of Isaac was created by Edmund McMillen, co-creator of Super Meat Boy, and the game was originally built in Adobe Flash.
Best price today
€4.99
all-time low: official €1.49 · keyshop €1.32 (+278%)
The cheapest The Binding of Isaac key right now costs €4.99 at Steam — the best of 4 compared offers. The lowest price we have recorded for this game: €1.32.
The average low over the past 5 months was €1.89.
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.
Cheaper offers of another kind (Gift) — show (3)
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.
The Binding of Isaac prices by store 4
| Store | Type | Price |
|---|---|---|
| Steam | Official store | €4.99 |
| K4G | Marketplace | €7.13 |
| Driffle | Marketplace | €8.34 |
| G2A | Marketplace | €9.42 |
Lowest — official stores
€1.64
Oct 2026
Lowest — keyshops
€2.69
Aug 2026
Price history
last 89 daysMonthly price lows
| Month | Lowest official | Lowest keyshop |
|---|---|---|
| Oct 2026 | €1.64 | €6.97 |
| Sept 2026 | €2.24 | €5.36 |
| Aug 2026 | €2.49 | €2.69 |
| Jul 2026 | €1.49 | €1.32 |
| Jun 2026 | €1.74 | €6.60 |
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, K4G, Driffle, G2A
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All-time low so far: €1.32
System requirements
| Minimum | |
|---|---|
| OS | Windows XP, Vista, 7 |
| Processor | 2.5 GHz |
| Memory | 1GB |
Similar games
Video reviews
2:43 The Binding of Isaac: Afterbirth+ Review
IGN
3:02 The Binding of Isaac: Rebirth Review
IGN
15:47 The Binding of Isaac Afterbirth+ review
UberDanger
Reviews are made and published by independent YouTube channels; they load only on click.
About this game — FAQ
Can The Binding of Isaac be played single-player?
Yes, The Binding of Isaac is a single-player game.
What languages does The Binding of Isaac support?
The Binding of Isaac is available in: English.
FAQ
Where is the cheapest place to buy a The Binding of Isaac key?
The cheapest The Binding of Isaac key is currently sold by Steam for €4.99. That is the best of 4 offers we compare; prices are refreshed regularly. The lowest price we have ever recorded for this game: €1.32.
How much does The Binding of Isaac cost?
The Binding of Isaac currently costs from €4.99 — 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.