
2026 · Expansion for Base-game
Endeavor: Deep Sea – Uncharted Waters
Players explore the ocean depths, recruit specialists, and complete objectives to chart and protect marine environments. This expansion adds four new scenarios with unique phenomena (for example, a sea split by tectonic activity and pervasive surface fog), deeper exploration options, new specialist types, and mini-expeditions focused on rescuing endangered aquatic wildlife and restoring ecosystem balance. New scenario-specific components modify setup and available actions, increasing challenge and strategic variety.
- Players
- 1–5 best 5
- Playing time
- 45–90 min
- Age
- 14+
About the game
- Publishers
Expansion for
See them in LudoyaWhere to buy it
Shop prices and second-hand copies, checked every day.
On Ludoya's tables
Full stats in Ludoya- 2
- In collections
- 10
- On wishlists
- 4
- Pre-ordered
Rules questions
Answered from the rulebook by Ludoya's rules assistant.
Do I shuffle all the new Ocean boards and Journal cards into the regular stacks and decks?
No. Mix in the new components with familiar backs, but keep special-zone Ocean boards and the three Journal cards with different backs separate; they enter play only when instructed. (p. 1)
What do I do when I earn Impact for a scoring space that already has a marker?
Use the Scoring track instead of placing a marker in that space: place a marker on the matching track the first time, then advance it for later gains. At game end, convert any remaining scoring-space markers on your Impact board into progress on the tracks. (p. 2)
Do Blue Hole zones count as depth 2, and can I enter one from the side?
All Blue Hole zones count as depth 2, whatever row they occupy, and may only be entered from above or below—not from the sides. (p. 3)
In Mission 11, which Impact grid do I use, and what happens if Impact comes from Column D?
Use the grid for the sea where the Impact was gained: Columns A–C are the West Sea and E–G the East Sea; Column D is part of neither. If Column D is the source, or there is no zone source, choose which grid to use. (p. 4)
In Mission 14, can I discover a depth-1 zone if every stack still has a Fog tile?
No. You must choose a depth-1 stack without a Fog tile to discover a zone; if every stack has a Fog tile, depth-1 zones cannot be discovered. Placing an Impact marker in a Sun hex clears a Fog tile, if any remain. (p. 4)
When I claim a Dive token in the Mariana Trench, do I have to descend, and what does it cost?
Yes: claiming a token makes your Descender move one level deeper along the arrow, even if it is in the other Mariana zone. Pay the Research cost shown and move into an empty slot; otherwise, you cannot descend. (p. 3)
Free, on web, Android and iOS
Play Endeavor: Deep Sea – Uncharted Waters with Ludoya
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Game facts (players, playing time, age, credits) from BoardGameGeek.

