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The Crystal Gate is a place on Astro-Knights Island. This is where you will find the portal to Mordred's Fortress.


Role on Astro-Knights Island

The Crystal Gate is located inside the asteroid field on Astro-Knights Island. Its approximate coordinates are (11, 81). It is recommended that you do not land there until you have collected all of the Astro-Knights (Sir Cador, Sir Gawain, and Sir Pelasus). Once all of the Astro-Knights that you have rescued are gathered with you, it will be revealed that you are the Chosen One to pull the sword key out of the stone. A portal to another galaxy will open up and you will head to Mordred's castle in another galaxy.



  • Even after the key is pulled out and disappears inside the vortex, you can still see it in the stone from space.
  • After you complete Astro-Knights, you can no longer enter the portal. As explained by Elyana, it's because the Green Fuel Orb is the only way back into the fortress. That as well as the magic key, which you had used.
  • The Crystal Gate resembles the Fortress of Solitude from the Superman franchise.
  • It is possible to access the Crystal Gate before gathering all of the knights, however the portal cannot be opened until all of them are found.
Astro-Knights Island logo transparent.png
Items Bag of Manure | Coil of Rope | Coordiantes | Cosmic Symbols | Force Shield | Fuel Rod | Golden Coin | Ice Arrow | Island Medallion | Laser Lance | Library Book Slip | The Life of Mordred: A Cautionary Tale | Mechanical Mouse | Missing Page from Mordred's Journal | Moldy Cheese | Mordred's Journal | The Mystical Weapons of Arturus | Museum Pamphlet | Princess' Note | Secret Message | Small Key
Astro knights island.png
Locations Castle Dungeon | Castle of Arturus | The Crystal Gate | Fire Planet | Ice Planet | Jungle Planet | Main Street | Mordred's Fortress | Mordred's Hideout | Pewter Moon | Secret Sanctum | Ye Olde Rumour Mille
Characters Alice | Dragotank | Elyana | Garth | Goth Girl | Mechanical Mouse | Merlin | Metal Piranha | Mordred | Mother Phoenix | Pegasus | Queen of Arturus | Richard | Rock-Caterpillar | Rose | Simon Cobb | Sir Cador | Sir Gawain | Sir Pelasus | Space Sharks | Tigercopter