: A high-difficulty hard mode featuring "Eternal" variants of bosses that have significantly more HP and complex attack patterns.
: Added a final, secret chapter accessible after defeating Isaac, serving as the ultimate endgame challenge of the original version. The Eternal Edition binding-of-isaac-wrath-of-the-lamb
: Integrated 20+ new bosses and 40+ new enemy types, increasing the variety and difficulty of encounters. : A high-difficulty hard mode featuring "Eternal" variants
The DLC introduced a substantial volume of content that altered the core gameplay loop: secret chapter accessible after defeating Isaac
In 2015, a final major update called the was released for free to owners of the DLC. It introduced: