Open Sea Survival 3

Open Sea Survival 3 is a survival adventure game where you fight to stay alive on a small raft in the middle of an endless ocean. You start on a tiny floating platform made of a few boards, then slowly expand and reinforce your base so it can withstand the harsh sea. Collect drifting resources like planks, barrels, debris, and other useful materials needed for building and upgrades. The key resources are wood, metal, fuel canisters, and food in the form of fish. Set up fishing nets and fishing gear to automate gathering supplies, and catch fish to keep up your strength.

Dangerous sharks are always circling and will regularly try to destroy your raft, so reinforce your structures and fight them off to protect your floating home. You can also explore small islands where you can dock, gather rare resources, and uncover hidden treasures. Open chests, grab valuable items, and upgrade your equipment to better withstand the challenges of the open sea. Build a sturdy, safe, and spacious raft, explore the ocean, and prove you can survive in these tough conditions.

How to play?

Use simple mobile touch controls, just swipe your finger across the screen to move your character around the raft and the surrounding water. Collect boards and other materials to expand your raft piece by piece. Dock at small islands whenever you see them and loot the chests you find there. Gather all the key resources you need, including wood, metal, canisters, and fish.

Build and upgrade your base step by step, from new raft segments to sails, palm trees, and fishing equipment. Place fishing nets to automate resource collection and make survival easier over time. Strengthen your raft walls and platforms to hold off shark attacks. Keep exploring islands, open more chests, and upgrade your gear to improve your chances in Open Sea Survival 3.

Get ready to play now the online game Open Sea Survival 3 for free and without registration.
Category: Survival Games
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About this game:

  • Players have rated this game out of 5, based on votes.
  • Released in December 2025.
  • Ready to play on Web Browser (PC).
  • Age rating: 7+
  • Powered by HTML5 (Unity WebGL) — jump right in and start playing in your browser, no downloads needed.

Game features:

  • Start on a tiny raft and expand it into a large, reinforced floating base
  • Collect drifting resources and set up fishing nets to automate gathering supplies
  • Defend your raft from shark attacks by strengthening structures and fighting back
  • Dock at small islands to loot chests, find rare materials, and upgrade your equipment

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