The Eastern Island is the third island in Aground.
Upon arrival you will see three partially-organic structures.
Purple Chamber Edit
Upon arrival, the Alchemist activates the purple chamber for use. You can rest and save in it just like a hut or tent.
When you obtain a Water Gem you can activate the Synthesizer.
With a Fire Gem you can activate the Enchanter.
Time Manipulator Edit
Above the three organic structures is a floating snow island which can only be reached by flying up with Dragon Armor, or discovering the wyrmhole that leads to the island. On it you can find an Ice Spirit and a Time Manipulator. An Ice Gem is required to activate the Time Manipulator, which, when fueled with Focus Gems, allows you to:
- Uncraft items to regain the materials used in their creation. This can also be used to find out the enchanting recipes for already-enchanted items you find. For example, in the ice cave found surrounded by bedrock in that same island. (Note that the entrance can only be accessed while wearing Spirit Goggles.)
- Reset your skill points, allowing you to allocate them again. Requires 100 fuel.
- Set the time, allowing you to skip ahead to or skip night without needing to wait for the game’s day/night cycle to reach the appropriate time on its own.
Forbidden Forest Edit
Ice Berry bushes and Purple Trees can be found on the island which will slap you with their tentacle branches if you get too close. Fire Boars and nocturnal plant creatures roam on the surface. There are also spirits that can only be seen with Spirit Goggles.
Wyrm Hive Edit
Follow the lone Wyrm on the island underground and you'll come across a mouth opening. Inside is a Wyrm hive filled with Wyrms and the Wyrm Queen, and two chest containing Spirit Gems. If you defeat the Wyrm Queen, a wyrmhole will appear, which you can then go through, traverse through the maze, and discover other wyrmholes that lead to various places on all three islands in the game, along with dimensions found only in the maze.
The Old One's Chamber Edit
Under the Enchanter is a bedrock chamber in which a mysterious alien resides. It will do nothing and cannot be harmed until the Alchemist can be summoned to it, after which a boss fight will begin.