| Description | Nervous system |
|---|---|
| Signature | None (reason unknown) |
| Feature | Severe frostbite |
| Sighting | Museum floor right before closing |
Generate anomalies
| Description | Evil waveform |
|---|---|
| Signature | None (reason unknown) |
| Feature | Panic attacks |
| Sighting | That part of the woods no one visits |
| Description | Evil waveform |
|---|---|
| Signature | Wave (multiple civilians agitated) |
| Feature | Irritable snaps |
| Sighting | College campus on a party night |
| Description | Night hag |
|---|---|
| Signature | Breach (time-space sinkhole) |
| Feature | Quiet footsteps |
| Sighting | Some seedy harbor during bad weather |
| Description | Inhuman clown |
|---|---|
| Signature | Spike (large-scale anomalous zone) |
| Feature | Irritable snaps |
| Sighting | Behind a diner, where people smoke |
| Description | Malicious voices |
|---|---|
| Signature | Wave (multiple civilians agitated) |
| Feature | Strange growths |
| Sighting | Blocking a rural road or highway |
| Description | Inhuman clown |
|---|---|
| Signature | Wave (multiple civilians agitated) |
| Feature | Urge to build |
| Sighting | The moonlit empty desert |
| Description | Vanishing hitchhiker |
|---|---|
| Signature | Blip (briefly sighted) |
| Feature | Strange growths |
| Sighting | The confines of a prison cell |
| Description | Machine elf |
|---|---|
| Signature | Blip (briefly sighted) |
| Feature | Cracked walls |
| Sighting | Atop an oddly shaped mountain |
| Description | Night hag |
|---|---|
| Signature | Breach (time-space sinkhole) |
| Feature | Cracked walls |
| Sighting | Museum floor right before closing |