World Exploration#

The world of The Binding of Isaac is made up of multiple chapters — each chapter offers several route options leading to different bosses and endings. Understanding route choice is the key to efficient runs

Basic Routes#

Alternate Routes#

After defeating Mom, you face a route choice — it decides where your run ultimately goes

Route A: Cathedral (Angel Route)#

Route B: Sheol (Devil Route)#

New Routes Added by the Repentance DLC#

The Repentance DLC adds many new routes and hidden areas

The Route to Mother#

Note: The Mother route requires the Repentance DLC. Mother is one of the harder bosses in the game — make sure your build is strong before trying

The Route to The Beast#

Hidden Room Types#

Route Recommendations#

DLC Chapter Changes#

All Alternate Floors#

Secret Room Position Patterns per Floor#

Special Door Types#

Practical Map Tips#

Floor Overview#

Curse Table#

Route Selection Guide#

Special Room Identification#

Exploration Data#

Route Decision Tree#

│   ├── Take the harder route — more items harder route — more items
│   └── Take the alternate route — Mines/Mausoleum path — Mines
│   ├── Take the standard route — play safe route — play safe
│   └── Full-clear each floor — accumulate items clear each floor — accumulate
    ├── Take the easiest route — Basement/Caves route — Basement/Caves
    └── Only visit key rooms — Treasure rooms/Shops/Bosses

Advanced Exploration Tips#

Exploration FAQ#