Critters in Animal Crossing: New Horizons include fish, bugs, and sea creatures. These are the collectible creatures players can catch throughout the game, and they are tracked in the Critterpedia on the NookPhone. Because ACNH critters are tied to collecting and completion, they are one of the most important categories for players working on long-term island goals.

In ACNH, critters generally mean fish, bugs, and sea creatures. Fish and bugs are core creature categories across the Animal Crossing series, while sea creatures are also included in New Horizons. That broad definition is why the critters collection can cover multiple types of catchable creatures instead of only one group.

ACNH critters are mainly collected for Critterpedia progress, museum goals, and completion. Players catch critters to fill out their records, support collection progress, and work toward a more complete Animal Crossing: New Horizons experience. Critters are especially important for players who enjoy collecting every available creature category.

Yes, fish, bugs, and sea creatures are all part of the Critterpedia in ACNH. The Critterpedia app in Animal Crossing: New Horizons records the insects, fish, and sea creatures a player has caught. That makes it one of the clearest in-game systems connected to the critters category