Sunken Trench

Made for Global Game Jam 2025 in 48 hours,

Nadir Türktür: Game Designer

İsmail Özelcanat: Game Developer

Hamza Özcan: Game Artist

An unexpected anomaly on the Sun triggers a massive explosion, releasing an intense burst of radioactive rays toward Earth, putting life on the planet in grave danger. However, the depths of the Mariana Trench remain unaffected by these rays. Authorities announce an urgent evacuation plan for anyone who can reach the shelter located in the trench’s depths.

The player embarks on a journey in their personal submarine, descending into the depths of the Mariana Trench to reach the shelter. Spanning 35,000 feet, the trench is divided into seven stages, each separated by 5,000 feet. During this journey, the player will face enemies, manage limited oxygen supplies, and endure harsh environmental conditions.

Core Gameplay Mechanics:

1. Oxygen Management: The player must carefully manage limited oxygen supplies, find additional resources, or minimize conflicts to conserve oxygen.

2. Submarine Condition: Increasing pressure and sustained damage force the player to act swiftly and strategically to maintain the submarine's integrity.

3. Enemy Types: A variety of creatures with unique behaviors and boss fights introduce challenges and diversity in gameplay.

4. Atmosphere and Visibility: With each stage, the increasing darkness and sense of danger keep the player in constant suspense and tension.

Original GGJ page; Sunken Trench | Global Game Jam