Broken Modem is an unlockable passive item in The Binding of Isaac, added in the Afterbirth+ DLC.

Causes enemies, enemy projectiles, tears and pickups to briefly freeze in place at random intervals. The frequency of the effect scales with Isaac's luck.

Frozen enemy shots will disappear.

Has a 25% chance to double room clear rewards. Cannot double chests, pills or cards. However, it can duplicate chests spawned by Options?.

Can be used to create a glitched TMTRAINER item under very specific circumstances. This can happen by using Magneto to immediately open a chest that was duplicated by Options? and contained an item.

This page shows the latest information as of the new Repentance+ (Online Co-op) DLC.
To see information about this item for the previous Repentance version, check this page instead.

Complete 7 daily challenges.

Broken Modem can be found in the following item pools:

The following tags are applied to this item:

The following special synergies and interactions for Broken Modem have been documented.

* Note that not all possible synergies and interactions are listed here.

Below is the Internal Item Description as shown in-game.
Note that some stat changes are not displayed here. Please see the main description for the full effects.

Broken Modem

• Chance to "lag" enemies and enemy projectiles at random, briefly freezing them in place
• Lagged projectiles disappear upon unfreezing
• Chance to duplicate room-clear rewards
• Abyss: x1 confusing petrifying locust 1.5x Isaac's damage

• Check out the item description on the external Isaac Wiki.