Another idea of a new kind of enemy that I just had recently was maybe hostile plants that grow into your base like tentacles or poison plants that grow in certain biomes.

Thought I'd be cool to instead of just fighting one enemy to have different types of enemies fighting each other besides the player.

For example : You'd have the flying type of enemies (like hornets or bees) that are mostly harmless and depend on plants as a food source, if the player removes their ...