A group of poor explorers hoping to get rich quickly heads out to recover treasures from some undersea ruins. They're all rivals, but their budgets force them all to share a single rented submarine. In the rented submarine, they all have to share a single tank of air, as well. If they don't get back to the sub before they run out of air, they'll drop all their treasure. Now it's time to see who can bring home the greatest riches.

Game Objective
The game takes place over 3 rounds, and the player to gain the most points over the 3 rounds is the winner. In order to gain points, you must bring the most ruins chips back to the submarine. You can only return to the submarine once per round, and you cannot progress more after returning. You cannot return to the submarine without bringing any ruins chips.

Turn Progression
On their turns, players conduct steps 1-4 listed below. Players take turns, going clockwise around the board, and the round ends when all players have returned to the submarine, or if the air runs out at the beginning of someone's turn.

1) Declare if you will turn back or not.
2) Reduce air.
3) Roll the dice and advance your game piece.
4) Search. (When you have stopped moving, select one of A-C below)
A) Do nothing.
B) Pick up ruins chip.
C) Place a ruins chip.

Deep Sea Adventure Boost features the same gameplay and components as Deep Sea Adventure, but it adds three new dice for a new way to play. These dice feature the digits 0 & 3, 1 & 3, and 1 & 2. When you roll, you now roll these three dice, then choose two of them to determine your movement, although you still subtract points for the treasure you hold.

What's more, at the start of your turn, you can decide to "boost" your movement by using the sum of all three dice — but doing so uses an addition unit of air. Will your need for speed leave everyone gasping?

(The original dice for Deep Sea Adventure are also included.)

3 Special Dice / 6 Explorer Pieces / 48 Artifact Chips / 6 Bag Tokens / 1 Submarine Board / 1 Air Marker / 2 Original Edition Dice / Game Manual(JA/EN)

2–6 Players
30 Min
Age: 8+



Released: 24 March 2025