The "Sea of Blood" expansion allows players to take their "Descent" games to the high seas.
It features the return of the popular Advanced Campaign mode first introduced in the "Road to Legend" expansion. The Advanced Campaign allows a party of heroes to experience a series of adventures as one continuous story, culminating in an epic battle with the overlord himself.

New board sections include large expansive ocean tiles with scattered islands, as well as large ship decks with additional tiles featuring ships' cannons.

"Road to Legend" supplement also includes an expansion for the overworld map featuring new sea areas and island locations to explore.

The expansion also features new sea journey rules and adventures, as well as equipment and treasure cards and additional tuck boxes for packing the game away during longer campaigns.

Note: "Descent" basic game is needed to play.