Animal Crossing: New Horizons has a wide range of exciting features that closely represent the actual world. Anyone who has played the game knows how immersive and fun the experience is to catch various critters. Moreover, the social simulation game takes place in real-time and includes natural phenomena like seasons and weather changes.
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Monthly changes and updates are frequent occurrences in the world of New Horizons. The game has new fish, bugs, and sea creatures that cycle in and out every month. Therefore, an assortment of critters will depart both the north and south hemisphere islands after October 31. Some of these critters might not become available for quite some time, so players are advised to catch as many as they can before time runs out.
With the Northern hemisphere transitioning into fall during October, many bugs, fish, and sea creatures will leave the islands here. Meanwhile, Southern hemisphere players will not experience as many critter departures because the pleasant spring months are in full swing.
We list all the Animal Crossing: New Horizons critters, leaving both hemispheres after October below. Players need to keep an eye out, so they don’t miss out on catching any of the creatures towards completing their Critterpedia and donating them to Blather’s Museum. Therefore, it is important to know which critters are leaving to ensure you catch them before October ends.
List of Animal Crossing: New Horizons critters departing Northern Hemisphere after October
The following 10 fish are departing the Northern Hemisphere islands when October ends:
| Name | Location | Shadow size | Time | Price |
| Snapping Turtle | River | Large | 9pm – 4am | 5,000 |
| Catfish | Pond | Medium-large | 4pm – 9am | 800 |
| Tilapia | River | Medium-small | All-day | 800 |
| Angelfish | River | Small | 4pm – 9am | 3,000 |
| Betta | River | Small | 9am – 4pm | 2,500 |
| Rainbowfish | River | Tiny | 9am – 4pm | 800 |
| Moray eel | Sea | Thin | All-day | 2,000 |
| Ribbon eel | Sea | Thin | All-day | 600 |
| Giant trevally | Pier | Large | All-day | 4,500 |
| Mahi-mahi | Pier | Large | All-day | 6,000 |
The following 10 bugs are departing the Northern Hemisphere islands when October ends:
| Name | Location | Time | Price |
| Yellow butterfly | Flying | 4am – 7pm | 160 |
| Tiger beetle | On the ground | All day | 1,500 |
| Stinkbug | On flowers | All day | 120 |
| Scorpion | On the ground | 7pm – 4am | 8,000 |
| Red dragonfly | Flying | 8am – 7pm | 180 |
| Man-faced stink bug | On flowers | 7pm – 8am | 1,000 |
| Ladybug | On flowers | 8am – 5pm | 200 |
| Darner dragonfly | Flying | 8am – 5pm | 230 |
| Bell cricket | On the ground | 5pm – 8am | 430 |
| Banded dragonfly | Flying | 8am – 5pm | 4,500 |
The following 2 deep-sea creatures are departing the Northern Hemisphere islands when October ends:
| Name | Shadow size | Swimming pattern | Time | Price |
| Spotted garden eel | Medium | Slow consistent movement | 4am – 9pm | 1,100 |
| Giant isopod | Large | Quick long lunges | 9am – 4pm & 9pm – 4am | 12,000 |
List of New Horizons critters departing Southern Hemisphere after October
The following 3 fish are departing the Southern Hemisphere islands when October ends:
| Name | Location | Shadow size | Time | Price |
| Dab | Sea | Medium-small | All day | 300 |
| Tuna | Pier | Huge | All day | 7,000 |
| Blue marlin | Pier | Huge | All day | 10,000 |
The following bug is departing the Southern Hemisphere islands when October ends:
| Name | Location | Time | Price |
| Tarantula | On the ground | 7pm – 4am | 8,000 |
The following 3 deep-sea creatures are departing the Southern Hemisphere islands when October ends:
| Name | Shadow size | Swimming pattern | Time | Price |
| Sea cucumber | Medium | Slow consistent movement | All day | 500 |
| Spider crab | Medium | Quick | All day | 12,000 |
| Snow crab | Large | Quick short lunges | All day | 6,000 |
Also Read– Animal Crossing: New Horizons Tips for Beginners to Make their Lives on the Islands Easier