Teraphyx Island is an island in Survival 303.


Teraphyx Island, often called Harbor or Horseshoe Island due to its shape, is named for its three Teraphyx. Three of them live in a harbor-shaped pool of shallow water. This island is one of only two islands with clay and dirt. There is a flat area with vegetation on one side of the island (that Apple grows on), and cliffs on the other side. Carrots and wheat grow on and around the cliffs, and there is some clay and dirt on one side.

Survival Tips

This island is a great place for beginners because of the abundance of food, but permanent settlements are uncommon due to the lack of ores. If you do want to settle here, the cliffs are best for building. Make sure you have a well or an easy path to the pond. You'll have to import stone and ores if you want to have tools. This island can also be used to mass-produce apple pie and teraphyx meat and horns if you're not interested in settling.

Pros and Cons


  • Lots of food
  • Teraphyx
  • Uncommon resource (clay)
  • Somewhat isolated
  • No spawn point


  • No ores or rocks
  • Not a lot of space to build