Binding of Isaac: Rebirth Wiki
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Added in Repentance

Planetarium Planetariums contain astronomical items representing the Sun and the planets orbiting it (plus Pluto and Earth's moon).

Passive Collectibles[]

Name ID Icon Weight Description
Jupiter 5.100.594 Jupiter
1
+2 red Heart containers, -0.3 speed. Isaac builds speed while standing still, and releases poison gas clouds when he moves afterwards.
Luna 5.100.589 Luna
1
Adds an extra Secret Room Secret Room and Super Secret Room Super Secret Room to each floor. Secret Rooms contain a beam of light that increases Fire Rate for the current floor and gives a Half Soul Heart Half Soul Heart.
Mars 5.100.593 Mars
1
Dash by double-tapping the movement key, becoming invulnerable and damaging enemies. There's a short cooldown before Isaac can dash again.
Mercurius 5.100.590 Mercurius
1
+0.4 speed. Doors stay open after entering a room, even in rooms with enemies.
Neptunus 5.100.597 Neptunus
1
Isaac's mouth fills with tears over time while not firing, up to a cap. Holding the fire button will release all stored tears in rapid succession.
Pluto 5.100.598 Pluto
1
+0.7 tears. Significantly shrinks Isaac, allowing him to squeeze between objects and makes some enemy shots pass over him.
Saturnus 5.100.595 Saturnus
1
Upon entering a room, a circle of tears orbits Isaac. Enemy tears have a chance to be caught in orbit, turning them friendly.
Sol 5.100.588 Sol
1
Reveals the location of the Boss room. Upon defeating a boss, activates XIX - The Sun XIX - The Sun, fully recharges Isaac's active item, grants bonus damage and luck for the rest of the floor, and removes curses.
Terra 5.100.592 Terra
1
+1 Damage. Replaces tears with rocks that deal variable damage, have increased knockback, and can destroy obstacles.
Uranus 5.100.596 Uranus
1
Isaac shoots ice tears, which slow enemies and freeze monsters they kill. Frozen enemies slide away and explode into ice shards when touched.
Venus 5.100.591 Venus
1
Adds one red Heart container. Enemies near Isaac become charmed.


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