Explore the deep. Recover lost treasure. Return alive.
Arrow keys or WASD to swim. Spacebar for sonar ping.
On mobile: virtual joystick + sonar button.
Press Enter to play again
Treasure Dive is a free browser-based deep-sea adventure game where you descend through four distinct ocean zones collecting sunken treasure. Manage your oxygen supply, dodge jellyfish and sharks, and upgrade your equipment to reach the mysterious Abyss below 300 meters.
Each dive starts at the surface. Swim downward to collect coins, jewelry, artifacts, and legendary relics scattered across procedurally generated ocean depths. Your oxygen depletes faster the deeper you go, so plan your route carefully. Spend your earnings on tank upgrades, faster flippers, brighter lights, and pressure suits to unlock deeper zones with rarer treasure.
You start at the Shallow Reef (0-50m) and can reach the Abyss (300m+) by upgrading your pressure suit. Each depth zone has unique treasures and increasingly dangerous hazards. The deepest legendary treasures are worth up to $5,000 each.
Oxygen depletes steadily and faster at greater depths. Return to the surface to fully refill, or find glowing air pocket bubbles scattered throughout the ocean. Upgrading your tank increases your maximum oxygen by 20% per level.
Four tiers of treasure await: common coins ($10-50), uncommon jewelry ($100-300), rare artifacts ($500-1,000), and legendary relics ($2,000-5,000). Deeper zones have higher chances of spawning rare and legendary items.
Last updated: April 2026