Binding of Balatro

Balatro x The Binding of Isaac: Rebirth. Pick an Isaac character as your deck, descend from the Basement to the Dark Room/Chest one Ante per floor, fight Isaac's real bosses as Boss Blinds, and collect Isaac's items as Jokers. Beat a boss and a Devil or Angel deal may replace the shop.

What's in it

• 11 characters as decks: Isaac, Magdalene, Cain, Judas, ???, Eve, Samson, Azazel, Lazarus, Eden and The Lost, each with their real sprite, starting item and stats (hands = health, discards = speed).
• 164 Isaac items as Jokers, with their real names and sprites: stat items, tear effects as retriggers, scaling items, revives (1up!, Dead Cat, Lazarus' Rags) and 22 active items with charges and a USE button (The D6, Yum Heart, Book of Belial, The Bible, D20, Flip, D Infinity...). Items do their own thing: mushrooms and syringes grow with each other, Devil and Angel items grow with their pool, Steven hits bosses, Mom's Lipstick loves Queens, Forever Alone wants no friends.
• Repentance+ items (new in 1.1): Rock Bottom, Sacred Orb, Flip, C Section, Glitched Crown, Birthright, Tech X, Spirit Sword, Echo Chamber, Twisted Pair, Incubus, Revelation, Mega Blast, Haemolacria, Crown of Light, Psy Fly, Death Certificate, Mega Mush and D Infinity.
• 11 Legendaries with busted effects, including exponential ^Mult: Brimstone (^1.5 every 2nd hand), Epic Fetus (^2 on the first hand), Revelation (^1.25), Spirit Sword, Mega Blast (^2 for a round), Godhead (X log2 of your Chips), Tech X, C Section, Glitched Crown, Sacred Heart, Mom's Knife. Found in shops (3%), from The Soul, in Devil/Angel rooms, Super Secret Rooms and Death Certificate.
• Secret Rooms: discard exactly 5 cards in a Small or Big Blind to bomb a wall (1 in 4; 1 in 2 with a bomb item; always with X-Ray Vision). The next shop becomes the Secret Room: coins and a free item. 1 in 10 is a Super Secret Room with a choice of Legendaries.
• 9 transformations: Guppy, Lord of the Flies, Fun Guy, Seraphim, Leviathan, Spun, Yes Mother?, Conjoined and Bob, each with a lasting bonus once you hold 3 of their items.
• Floors as Antes: Basement, Cellar, Caves, Catacombs, Depths, Necropolis (Mom), Womb, Utero (Mom's Heart), then Sheol/Cathedral and Dark Room/Chest. You win on Ante 10; Endless loops the floors.
• 46 Isaac bosses with their portraits as Boss Blinds, each with a Balatro-style twist.
• Devil and Angel deals after Boss Blinds, chance-based like Isaac: guaranteed Devil deal after the Ante 2 boss, then 50% (+ Pentagram, Black Candle, Goat Head...; less if the boss took you more than 2 hands). Skip a Devil deal without taking one to open a 33% Angel chance. Devil items cost a permanent hand or discard (money for ???, free for The Lost); Angel rooms let you take one item free.
• Isaac's soundtrack per floor, boss fights, shop, Devil, Angel and Secret rooms.

Requirements

• Balatro (Steam) with lovely-injector (Melty installs it).
• The Binding of Isaac: Rebirth installed through Steam on the same PC (Windows). Nothing from Isaac is included in this mod: on first launch it runs Isaac's own ResourceExtractor (shipped in the game's tools folder) on your copy's archives (Rebirth, plus Afterbirth/Afterbirth+/Repentance for the newer items if you own them; expansion items only appear if you own that expansion) and keeps what the mashup uses in %APPDATA%/Balatro/isc_cache. If Isaac is not found, the game says so at the top of the screen. If Isaac lives somewhere unusual, put its folder path in %APPDATA%/Balatro/isc_isaac_path.txt.

Vanilla decks are unchanged; Isaac content appears when you play an Isaac character deck.

Credits

• Mashup design and build: the Melty listing's creator, made with Claude (Anthropic).
• Balatro by LocalThunk / Playstack. The Binding of Isaac: Rebirth by Edmund McMillen / Nicalis; all Isaac art, names and music are read from the player's own installation.
• lovely-injector by ethangreen-dev (installed by Melty, not bundled).

License

All rights reserved.