Yes, there are several video games that include deep-sea exploration as a major part of their gameplay:

1. **Subnautica**: Subnautica is an open-world survival action-adventure game developed and published by Unknown Worlds Entertainment. It allows players to explore the ocean on an alien planet, known as planet 4546B, after their spaceship crashes on the planet. The game features a wide range of sea life and makes extensive use of a crafting system.

2. **ABZÛ**: This is an adventure game developed by Giant Squid Studios where you play as a diver exploring the depths of the ocean. It's more of an artistic experience with stunning visuals and a tranquil soundtrack, focusing more on the beauty and mystery of the sea than on survival mechanics.

3. **Endless Ocean**: Endless Ocean is a series of simulation video games for the Wii console where players explore different oceans and interact with the sea life.

4. **Soma**: SOMA, developed by Frictional Games, is a science fiction, survival horror game set in an underwater research facility. The game features puzzle-solving and stealth elements and does not allow the player to fight off enemies, forcing them to devise other means of avoiding confrontation.

5. **Sunless Sea**: This game is a survival/exploration game developed by Failbetter Games. The player takes the role of a steamship captain and explores an underground ocean.

6. **Deep Sea Adventure**: This is a board game turned mobile game about deep sea exploration. Players take turns diving for treasure but have to make sure they have enough oxygen to make it back to the submarine.

Remember that some of these games can be quite realistic and intense. Always check the game's rating and content description to ensure it's appropriate for your age and comfort level.
spam fails_task lang_mismatch pii not_appropriate hate_speech sexual_content quality toxicity humor helpfulness creativity violence