The Binding of Isaac: Rebirth eventually introduced official online co-op with the Repentance+ DLC. However, for the original Wrath of the Lamb , online co-op relies on resourcefulness:
Binding Of Isaac Wrath Of The Lamb Online - |link| Direct
The Binding of Isaac: Rebirth eventually introduced official online co-op with the Repentance+ DLC. However, for the original Wrath of the Lamb , online co-op relies on resourcefulness: