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The Binding of Isaac
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What players say
Steam review score and the most-helpful voices, which may include critical ones. Data as of 2026-05-20.
What reviewers agree on
26 of the 103 reviews raise this.
“I wouldn't actively recommend Flash Isaac, but there are no neutral options & it's a lot more positive than negative to me. As someone with over three thousands hours and 100% completion on its remake, TBOI:Rebirth,…”
“Edmund McMillen is the absolute greatest when it comes to roguelikes, with The Binding of Isaac standing as one of the best, if not THE BEST, example of the genre as a whole. If I typed out every single thing that I…”
“Great game, but buy Binding of Issac: Rebirth for more fun and the availablitiy to purchase DLC if you want more content!”
8 of the 103 reviews raise this.
“I wouldn't actively recommend Flash Isaac, but there are no neutral options & it's a lot more positive than negative to me. As someone with over three thousands hours and 100% completion on its remake, TBOI:Rebirth,…”
“it fun. if you have masochistic tendancies”
“excelent game but the last update is for OG players that they like to suffer XD”
7 of the 103 reviews raise this.
“you can very well play this game if you don't got the money for the "big deal" (repentence or simply rebirth). for only 2$ this game offers SO much, but it tends to get "repetitive" in some way..but keep playing to…”
“Amazing if you can't afford the newer one but this one does get laggy at times”
“this game is amazing play it and dont buy it on a sale support the indie devs who made it and pay full price”
6 of the 103 reviews raise this.
“I wouldn't actively recommend Flash Isaac, but there are no neutral options & it's a lot more positive than negative to me. As someone with over three thousands hours and 100% completion on its remake, TBOI:Rebirth,…”
“The early Flash player was pushed to its absolute limits here and the raw difficulty more frequently than not crosses the line of fairness, but there's just something about the art style, gameplay loop, and synergies…”
“its cool to return to the original its athmosphere music art and difficulty resonade way better with me than with repentence if your a little tired of the newest isaac, try this one”
5 of the 103 reviews raise this.
“It's very good, and the variety of the bosses is insane, and it has tons of replayability”
“The early Flash player was pushed to its absolute limits here and the raw difficulty more frequently than not crosses the line of fairness, but there's just something about the art style, gameplay loop, and synergies…”
“Loving that I can come back to this game time and time again and always have a randomised game to play. The nostalgia playing this again is amazing and still holds its own agains the newer updates and versions.”
5 of the 103 reviews raise this · 5 of them still recommend the game.
“I wouldn't actively recommend Flash Isaac, but there are no neutral options & it's a lot more positive than negative to me. As someone with over three thousands hours and 100% completion on its remake, TBOI:Rebirth,…”
“The early Flash player was pushed to its absolute limits here and the raw difficulty more frequently than not crosses the line of fairness, but there's just something about the art style, gameplay loop, and synergies…”
“Amazing game for throwing poop at a wall and seeing what sticks. Other than that its tryhard asf and ive never made it close to achieving a ending, doesnt mean its bad but it means i cant comprehend whats happening…”
Counted across 103 English reviews, sampled to match this game's 94.9% positive rating · as of 2026-05-20
“Spent way too many hours crying in a basement shooting tears at flies and I regret nothing. The Binding of Isaac is one of those games that looks rough around the edges but somehow swallows your entire weekend whole. The roguelike loop is stupidly addictive, the item synergies…”
— a player, Steam review · 140 hrs played“when i bought this, i thought itd be kinda lame cuz its an "early" version of what tboi would become later. but its really good... this was made in flash? wow. its got so much content and the fun gameplay loop is very much already there. if you wanna play tboi but dont want to…”
— a player, Steam review · 4 hrs played“I was originally going to drop my review for this game several months ago after I 100%'d it, but I kind of just... forgot. Maybe that's indicative of how forgettable this game is compared to its successor. Everything TBOI does, TBOI:R does better. I'm giving this game a thumbs…”
— a player, Steam review · 48 hrs playedPlayer activity
Monthly average concurrent players. Live count fetched 2026-07-11 11:51 UTC · history via SteamCharts.
Achievement stats
Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-07-25.
Price tracking
US-region pricing (USD), sampled twice daily by our own tracker since 2026-07-11. Steam prices vary by region — always confirm your local price on Steam.
Regional prices at last sample, in local currency — Steam sets each region's price independently.
Cheapest → most expensive, converted to USD at ECB reference rates (2026-07-24). Relative comparison only.
Latest official news
Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.
Mewgenics is coming!
For those who didn't get the memo, Mewgenics ( yes the same one announced 12 years ago ) is releasing on steam Feb 10th! Wtf is it you ask? well feel free to check out the Mewgenics steam page, we hav
Isaac Fun!(Ko)
Its happened! The Binding of isaac is now part of the Funko Pop line up... some of you scream! you are 10 years late my friend! and i yell back "Don't call me friend ASSHOLE!!" but while on the topic
ISAAC NEWS +
Well hello fellow gamers! it's me Unc, with a big ol little update!The Binding of Isaac repentance is coming to Switch 2! its true! I saw the leak with my fleshy eyeballs!Look! ( note: the brown title
The Binding of Fortnite!
The rumors are true! The Binding of Isaac is today's Fortnite crossover!!What does that mean???It means Isaac is now Back Bling! He wiggles, cries, and cheers you on as you play!It means you can ride
BUT THERE'S MORE!
Oh hey, i didnt see you there!Its me Edmund and im back with another Isaac news roundup! lets get to it shall we!?There is a large quality of life update coming to repentance this sept... that's the g
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Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-05-20.
| Genres | Action, Adventure, Indie, RPG |
| Player tags | Action Roguelike · Rogue-like · Indie · Replay Value · Difficult · Procedural Generation · Dark · Action · Top-Down · Great Soundtrack · Addictive · Singleplayer (SteamSpy community voting) |
| Features | Single-player · Steam Achievements · Steam Trading Cards · Family Sharing |
| Languages | English * * |
| Achievements | 99 |
| Estimated owners | 1,000,000 – 2,000,000 (SteamSpy) |
Minimum system requirements (PC)
OS *: Windows XP, Vista, 7 Processor: 2.5 GHz Memory: 1GB Hard Disk Space: 50MB Video Card: Direct X9.0c Compatible Card DirectX®: DirectX® 9.0c