100 Days At Sea drops you in the middle of the ocean with one goal: survive long enough to uncover the mystery of the Bermuda Triangle and get rich. You'll need to gather resources, build a strong raft base, and explore dangerous islands. Here are the tips that'll help you make it to day 100.

Prioritize Resource Gathering Early

Your first priority is collecting materials. Use your Harpoon to hook resources from the ocean and nearby floating objects. Don't waste time building complex structures yet—focus on grabbing everything you can find. Early resources are the foundation of everything else you'll do.

Build a Solid Raft Base

Once you have materials, start building your raft base. This is your home and your defense. A good raft base protects you from threats and gives you a safe place to store resources. Build structures strategically and add defenses to keep enemies out. Your base gets stronger as you add more to it, so don't neglect this part of the game.

Explore Islands Carefully

The sea is full of mysterious islands to explore. Each island might have new resources, weapons, or dangers. Don't rush into exploration unprepared—make sure your raft base is secure and you have weapons before venturing out. Scout new areas cautiously and retreat if things get too tough.

Find and Equip Weapons

You won't survive long without weapons. Search islands and explore the ocean for weapons to use against the fearsome foes you'll encounter. Equip yourself before exploring new areas, and always keep backup weapons on your raft base in case you need them quickly.

Manage Your Resources

Don't spend everything you gather on one structure or upgrade. Plan ahead and balance your resource use between building, defenses, and tools. Running out of materials when you need them most is a quick way to fail. Store extra resources on your raft for emergencies.

💡 Tip — Use your Harpoon to gather floating resources in the ocean. It's faster and safer than exploring every island right away.

Establish Multiple Resource Routes

Don't rely on one area for all your materials. Scout multiple locations around your raft and establish routes to gather from them regularly. Diversity keeps your supply steady and reduces the risk of running out when one area gets depleted.

Invest in Defense Early

Building defenses isn't optional—it's survival. Add defensive structures to your raft base as soon as you can. Enemies will come, and an undefended base is a lost base. Even simple defenses are better than none, so prioritize this alongside your main structures.

Take on Enemies with Preparation

Before you engage fearsome foes, make sure you're ready. Have good weapons equipped, know your escape route, and fight in places where you have the advantage. Don't fight just because enemies are there—fight when you're confident you can win. Running is sometimes the smarter choice.

💡 Tip — Always keep some healing items or a safe zone near where you fight. You might need to retreat quickly.

Plan for the Long Term

You have 100 days to survive. That's a long time, so think about your strategy beyond day 10. Build structures that will last, gather more than you think you need, and expand your base gradually. The further you get, the richer you become, so pace yourself.