The Binding of Isaac: Wrath of the Lamb

Summary pulled directly from Steam - Some text may only be applicable to Steam platform

The Binding of Isaac: Wrath of the Lamb is the expansion to The Binding of Isaac, a randomly generated action RPG shooter with heavy Rogue-like elements. Following Isaac on his journey players will find bizarre treasures that change Isaac’s form giving him super human abilities and enabling him to fight off droves of mysterious creatures, discover secrets and fight his way to safety.

Key Features:

100+ new items! (now over 235 items!)
5+ new chapters!
20+ new enemies!
25 new achievements!
15+ new bosses!
6+ new room types!
6+ new mysterious item drops (eternal hearts, playing cards, dimes and more!)
5+ new music tracks by Danny B
A new item type, Trinkets
A new challenge mode with 10 unique challenges that unlock more content
A new unlockable character, Samson (The Beserker)
A new final (final) chapter and boss with new endings
Tons of new random happenings, curses, blessings, npcs, fortune tellers and more!
Also more super secrets than you'd probably expect... good luck finding them all.