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The Planetarium is an unlockable room type added in The Binding of Isaac: Repentance. Planetariums are similar to Treasure Rooms, in that they both require keys to enter, but always contain special astronomy-themed items that are only available through Planetariums.
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Planetariums contain astronomical items representing the Sun and the planets orbiting it (plus Pluto and Earth's moon).
Sep 6, 2021 · Learn how to unlock and find the Planetarium, a special room with astrology-themed items, in The Binding of Isaac: Repentance. See the list of 11 items, their effects, and how to increase the chance of encountering the Planetarium.
- William Parks
- Editor
The Binding of Isaac: Planetarium offers a stellar twist to the beloved rogue-like adventure, introducing a celestial layer to its labyrinth of chaos.
Apr 16, 2021 · This video contains all important information about the new Planetarium room added in The Binding of Isaac: Repentance. It tells you what they are, how to unlock them how to find them and some...
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- SlayXc2
Planetariums start to show up after the Stars are Calling achievement. Every floor has a 1% chance to spawn a planetarium. Every floor where u skip the treasure room gives a +20% for a planetarium to spawn next floor.
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What is a planetarium in the binding of Isaac?
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I decided to make another video showing how to unlock the planetariums and all the tricks I know to force them to appear and lose as few treasure rooms as possible.
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- Vico Mico