Spirit Island: Jagged Earth includes:
- 3 New Scenarios
- 10 New Spirits - including 41 Unique Power Cards
- 2 New Adversaries - including 4 Adversary Reminder Tiles
- 2 New Island Boards
- 30 New Event Cards
- 6 New Fear Cards
- 7 New Blight Cards
- 24 New Major Power Cards - including 1 Sea Monster replacement card
- 33 New Minor Power Cards
- 6 Aspect Cards - Optional aspects (innate powers) for the 4 core game spirits
- 25 Badland Tokens - A new way to fight invaders!
- More plastic, wooden, and cardboard tokens play up to 6 players)
- 18 Dahan
- 24 Blight
- 25 Explorers
- 16 Towns
- 10 Cities
- 35 Beast Tokens
- 30 Disease Tokens
- 22 Wilds Tokens
- 22 Strife Tokens
- 16 Fear Markers
- 24 Energy Markers
- 18 1-Energy Markers
- 6 3-Energy Markers
- 26 Spirit Presence - 13 each in 2 colors
- 6 Single-Turn Effect Markers (Defend) - 3 of each in 2 colors
- 18 Single-Turn Effect Markers (Isolate) - 3 of each in 6 colors
- 64 Element Markers - 8 of each element
- 6 Player Aid Cards
- 8 Reminder Cards
- New play options: combining adversaries, playing with an Archipelago (split island), and more.
— original description from the publisher, revised with released contents