Compare The Binding of Isaac prices across trusted key stores and find the best deal. Developed by Edmund McMillen. Published by Edmund McMillen. Released on 9/28/2011. Available on PC, Mac. Genres: Action, Adventure, Indie, RPG. Metacritic score: 84/100.

Forty seconds into your first run you will die to a poop enemy and immediately click New Game. That compulsion is the entire product pitch.

I have replayed this original Flash-built release more times than is strictly healthy, and the honest verdict is that it holds up as one of the most influential roguelikes ever assembled, even if the 2011 version you are looking at right now is rough around the edges in ways its successors fixed. Edmund McMillen took the dungeon room structure of classic Zelda, layered on permanent death and procedurally generated floors, then smothered the whole thing in a grotesque art style that reads like a fever dream drawn by a particularly troubled ten-year-old. The premise is bleak: a crying boy named Isaac flees into his basement to escape a mother who believes God has commanded her to sacrifice him. Your weapon is projectile tears. This is exactly as weird as it sounds, and the tone is completely, deliberately committed to that weirdness from the first screen to the last. The core loop is a twin-stick shooter built around resource management. You move with WASD and fire in four cardinal directions. Each floor is a maze of self-contained rooms that must be cleared of enemies before you can exit. Along the way, Item Rooms drop passive upgrades that stack onto your character in increasingly absurd combinations: stat boosts, orbital projectiles, extra hearts, transformed visual appearance. The item interactions are the beating heart of the whole experience. A run that starts with a mediocre seed can snowball into something ridiculous forty minutes later if the right passive items compound. A run with great early items can still collapse because health pickups simply did not appear when you needed them. That tension between build-crafting skill and raw RNG luck is precisely what kept people coming back for hundreds of hours, and it has enough depth that learning the optimal use of bombs, keys, devil deals, and tarot cards genuinely separates experienced players from beginners. Here is the honest caveat for this original version specifically: it was built in Adobe Flash, and it shows. Frame rate issues surface on later floors, there are documented bugs affecting achievements, and the game has no native gamepad support, which is a meaningful frustration for anyone who prefers a controller. The community consensus for years has been that newcomers should start with the 2014 remake, Rebirth, which overhauled the engine, added dozens of new items and characters, and runs at a stable 60fps. The original has a certain scrappy charm that some long-time fans actually prefer, especially in its art style and Danny Baranowsky's soundtrack, but technically it is the weaker package. If you are brand new to Isaac, treat this as an artifact of how the franchise started rather than the optimal entry point. For the narrative-curious: the story is told entirely through brief ending cutscenes earned by completing runs, and the subtext about religious extremism and childhood trauma is genuinely affecting once you start reading the imagery instead of skimming past it. This is not a game that rewards passive engagement. Multiple characters with distinct starting stats and passive items wait to be unlocked, and nine separate endings exist across different boss completions. The achievement list alone functions as a second layer of progression that will drag completionists well past the point of reason. There are no filler quests to pad the runtime, which I appreciate, but there is also no tutorial, no item dictionary, and no hand-holding whatsoever. The game expects you to die, figure out what killed you, and adjust. If you have never touched any version of Isaac and are deciding between this and Rebirth, the remake is the stronger technical choice. But if you want the original, warts-and-all experience that started the franchise with an 84 Metacritic score in 2011, this is a deceptively deep game with a tone unlike almost anything else in the genre. Just know that the Flash engine jank is real, and the RNG will occasionally be unfair in ways that feel less designed and more broken. Monika, Scout Team

The Binding of Isaac

The Binding of Isaac

Sep 28, 2011Edmund McMillen
GamerScout Says

Forty seconds into your first run you will die to a poop enemy and immediately click New Game. That compulsion is the entire product pitch.

PCMac
Steam Deck PlayableProtonDB Gold
Best Price Available
€1.34
at Kinguin
Lowest tracked: €1.34
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GamerScout Verdict

8.4/10

The roguelike that defined a genre, best experienced as a historical artifact; newcomers should start with Rebirth, but the original's bones are still solid.

Compare Prices(4 stores)

KinguinBest price
StandardEurope (EU)Steam KeyGift copy
€1.34
Priced in EUR by the store
Buy
StandardRussia / CISSteam KeyGift copy
€3.98-19%
Priced in EUR by the store
Buy
StandardEurope (EU)Steam KeyKey
€4.18
Priced in EUR by the store
Buy
StandardGlobalSteam KeyKey
€4.18
Priced in EUR by the store
Buy
StandardEurope (EU)Steam KeyKey
€4.99
Priced in EUR by the store
Buy
StandardSoutheast AsiaSteam KeyGift copy
€5.14-19%
Priced in EUR by the store
Buy
StandardNorth AmericaSteam KeyGift copy
€5.46
Priced in EUR by the store
Buy
StandardLatin AmericaSteam KeyGift copy
€6.55-19%
Priced in EUR by the store
Buy

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Price History

Lowest tracked
€1.3429 Jun 2026
Current best
€1.34
Lowest since we started tracking
Keyshops
€0.66€3.00€5.33€7.675 Jun27 Jun19 Jul9 Aug31 Aug
5 Jun — 31 Aug
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About The Binding of Isaac

I have replayed this original Flash-built release more times than is strictly healthy, and the honest verdict is that it holds up as one of the most influential roguelikes ever assembled, even if the 2011 version you are looking at right now is rough around the edges in ways its successors fixed. Edmund McMillen took the dungeon room structure of classic Zelda, layered on permanent death and procedurally generated floors, then smothered the whole thing in a grotesque art style that reads like a fever dream drawn by a particularly troubled ten-year-old. The premise is bleak: a crying boy named Isaac flees into his basement to escape a mother who believes God has commanded her to sacrifice him. Your weapon is projectile tears. This is exactly as weird as it sounds, and the tone is completely, deliberately committed to that weirdness from the first screen to the last. The core loop is a twin-stick shooter built around resource management. You move with WASD and fire in four cardinal directions. Each floor is a maze of self-contained rooms that must be cleared of enemies before you can exit. Along the way, Item Rooms drop passive upgrades that stack onto your character in increasingly absurd combinations: stat boosts, orbital projectiles, extra hearts, transformed visual appearance. The item interactions are the beating heart of the whole experience. A run that starts with a mediocre seed can snowball into something ridiculous forty minutes later if the right passive items compound. A run with great early items can still collapse because health pickups simply did not appear when you needed them. That tension between build-crafting skill and raw RNG luck is precisely what kept people coming back for hundreds of hours, and it has enough depth that learning the optimal use of bombs, keys, devil deals, and tarot cards genuinely separates experienced players from beginners. Here is the honest caveat for this original version specifically: it was built in Adobe Flash, and it shows. Frame rate issues surface on later floors, there are documented bugs affecting achievements, and the game has no native gamepad support, which is a meaningful frustration for anyone who prefers a controller. The community consensus for years has been that newcomers should start with the 2014 remake, Rebirth, which overhauled the engine, added dozens of new items and characters, and runs at a stable 60fps. The original has a certain scrappy charm that some long-time fans actually prefer, especially in its art style and Danny Baranowsky's soundtrack, but technically it is the weaker package. If you are brand new to Isaac, treat this as an artifact of how the franchise started rather than the optimal entry point. For the narrative-curious: the story is told entirely through brief ending cutscenes earned by completing runs, and the subtext about religious extremism and childhood trauma is genuinely affecting once you start reading the imagery instead of skimming past it. This is not a game that rewards passive engagement. Multiple characters with distinct starting stats and passive items wait to be unlocked, and nine separate endings exist across different boss completions. The achievement list alone functions as a second layer of progression that will drag completionists well past the point of reason. There are no filler quests to pad the runtime, which I appreciate, but there is also no tutorial, no item dictionary, and no hand-holding whatsoever. The game expects you to die, figure out what killed you, and adjust. If you have never touched any version of Isaac and are deciding between this and Rebirth, the remake is the stronger technical choice. But if you want the original, warts-and-all experience that started the franchise with an 84 Metacritic score in 2011, this is a deceptively deep game with a tone unlike almost anything else in the genre. Just know that the Flash engine jank is real, and the RNG will occasionally be unfair in ways that feel less designed and more broken.

Monika
Monika · Scout Team

RPGs

Tags

singleplayerachievementsFlash-Engine JankItem SynergiesPermadeathTwin-Stick ShooterBiblical SatireUnlockable CharactersMultiple EndingsNo TutorialDanny Baranowsky Soundtrack

System Requirements

Minimum

Processor
2.5 GHz
Memory
1GB Hard Disk Space: 50MB Video Card: Direct X9.0c Compatible Card DirectX®: DirectX® 9.0c

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Reviews & Ratings

GamerScout
8.4/10
Metacritic
84

Game Info

Developer
Edmund McMillen
Publisher
Edmund McMillen
Release Date
Sep 28, 2011

Game Modes

singleplayer

Languages

Subtitles (1)
English

Features

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Frequently asked questions about The Binding of Isaac

How much does The Binding of Isaac cost?

As of 31 August 2026, the cheapest in-stock offer for The Binding of Isaac is €1.34 at Kinguin, out of 11 live offers we track across verified key stores. Prices change daily — the table on this page is refreshed continuously.

Where can I buy The Binding of Isaac cheapest?

The lowest in-stock price we track for The Binding of Isaac is €1.34 at Kinguin (31 August 2026). We compare 11 live offers from verified key stores — the full table with every store and its trust score is on this page.

What platforms is The Binding of Isaac available on?

The Binding of Isaac is available on PC, Mac.

When was The Binding of Isaac released?

The Binding of Isaac was released on 28 September 2011.

Who developed The Binding of Isaac?

The Binding of Isaac was developed by Edmund McMillen.

Is The Binding of Isaac worth buying?

The Binding of Isaac holds a Metacritic score of 84/100, making it one of the standout Action titles. See the full reviews, ratings and how-long-to-beat times on this page to decide.