You play a mythical monster living in depths of seas, fighting for survival among others of its kind.

Devour aquatic beings (fish, plankton orbs) to grow longer and larger.

The greater your mass is, the greater threat you are to other sea dragons.

Fulfill quests to earn new cards presenting different sea dragon species.

Your body's length is key to survival. The longer you are, the wider are your possibilities on getting other dragons in a trap. But be careful - regardless of mass you achieve, avoid colliding your head with others' bodies. Single impact means defeat.

Collect cards to unlock new species and level up owned ones. The higher is level of your favourite dragon, the longer body you start with.

// Option A //

To download SeaDragons.io mod from HappyMod.com.
You need enable the option "Unknown Sources".
1. Click on the above link to download SeaDragons.io mod APK.
2. Save the file in your device Downloads folder.
3. Now tap on Install and wait for the installation to finish.
4. Once it is done, open the game and start playing it right away.

// Option B //

To download SeaDragons.io from HappyMod APP, you can follow this:
1. Open your browser and download the HappyMod APK file from HappyMod.com - the only official website of HappyMod.
2. Open Android Settings and go into Privacy or Security.
3. Tap the option to Allow Unknown Sources and enable it.
4. Go to your Android downloads and tap the APK file.
5. Follow the directions on the screen to install it.
6. Search SeaDragons.io in HappyMod App.