Collectors' Limbo is a realm between dimensional planes used by The Collectors to imprison their victims.
In February, the Ghostbusters were separately kidnapped by the Collectors and taken to another dimension. They awoke to find themselves reunited but stranded. Egon Spengler discovered the readings of the realm matched the baseline of Times Square almost perfectly, indicating they were actually between dimensions. The dimensional wall was so thin that it only distorted the P.K.E. reading by a small margin of 0.00073%.  Ray Stantz suggested it was time to put a theory he and Egon talked about at length to practice. They would use Ray's Proton Pack to jury rig a controlled explosion and rip a hole in the interdimensional fabric just wide enough for them to slip through and return home. Egon warned there was a small chance the explosion could cause the dimension to fold over their own and destroy both places. Egon was elected to initiate the explosion. The rip was successful and brought the Ghostbusters back to their proper dimension.
- The limbo is visually based on the unused Gozerian dimension sketches done during production of Ghostbusters that were later utilized in Ghostbusters: The Video Game.
- The Tobin's Spirit Guide entry Kylie Griffin reveals in Issue #2 references Abaddon, which in one interpretation is a realm in Hell where the damned are placed. 
- On page 21 of Ghostbusters Volume 2 Issue #11, Tiamat alludes to the Ghostbusters' escape from the Collectors' Limbo as a reason why she has become interested in Earth. 
- On the Ghostbusters: Mass Hysteria back cover, the Collectors' Limbo is alluded to in the description.
- Ongoing Series
- Ghostbusters: Get Real
- ↑ Egon Spengler (2013). IDW Comics- "Ghostbusters Volume 2 Issue #2" (2013) (Comic p.6). Egon says: "I said it doesn't seem like it... but these readings match the baseline of Times Square almost perfectly. We're off by only .00073%."
- ↑ Wikipedia Article about Abaddon
- ↑ Tiamat (2013). IDW Comics- "Ghostbusters Volume 2 Issue #11" (2013) (Comic p.21). Tiamat says: "They have shaken the very core of the universe. That interests me."
- ↑ Janine Melnitz (2013). IDW Comics- "Ghostbusters Volume 2 Issue #6" (2013) (Comic p.14). Janine says: "Please tell me this isn't where you and the others were trapped."
- ↑ Peter Venkman (2013). IDW Comics- "Ghostbusters Volume 2 Issue #8" (2013) (Comic p.4). Peter says: "If we're stuck in another dimension again I am going to give you such a pinch..."
- ↑ Ray Stantz (2013). IDW Comics- "Ghostbusters Volume 2 Issue #8" (2013) (Comic p.11). Ray says: "Our escape from the other dimension could have sent out y'know ripples."
- ↑ Peter Venkman (2015). IDW Comics- "Ghostbusters: Get Real Issue #1" (2015) (Comic p.18). Peter says: "We got stuck in a limbo once by some demons with a bit of a grudge."
- ↑ Winston Zeddemore (2015). IDW Comics- "Ghostbusters: Get Real Issue #1" (2015) (Comic p.20). Winston says: "Like Pete said, we were stuck in an other-dimensional limbo once -- and I'm in no hurry to accidentally wind up in another one."
- ↑ Ray Stantz (2015). IDW Comics- "Ghostbusters: Get Real Issue #3" (2015) (Comic p.3). Ray says: "But, if I'm being honest, I really want to get a look at an alternate dimension we don't have to detonate our way out of."
- ↑ Narrator (2015). Cryptozoic Entertainment- "Ghostbusters: The Board Game" (2015) (Comic p.4). Narrator says: "Most recently, he was pulled into a limbo by a band of demons that he had intended to set on the Ghostbusters."