Observatory is a room in Godmode Achieved, a mod for The Binding of Isaac.
The Observatory is a special room that can appear in any floor before Womb 1.
It starts at a 0% chance to spawn, and gains 10% chance each stage with a Curse encountered. The Observatory can hold rewards from the unique Observatory Room item pool, Runes, Soul Stones, Reverse Tarot Cards, and/or unique Trinkets to this room that get gulped on pickup.
Those trinkets include Shattered Moonrock, White Candle, Cracked Nazar, Cursed Pendant.
The Observatory is associated with the Observatory Room item pool. Items that spawn in this room will be selected from the associated item pool.