The worm is a mechanics-based creature added to wilds.io. The worm is most noticeable on the forts game mode where it has it's own pit. Here it stays and waits for any player to get near it. It guards the chest in the middle of the pit, and digs underneath the ground. The worm also resides within a certain arena map.
The movement of the worm is based on the movement of the nearest player. Although slow, the worm typically finds a way to get any player who dares to get close enough. If a player runs, jumps, or rolls over the graphics of the worm, it triggers the worm to burst out of the ground, ultimately killing the player. The player dies immediately regardless health or armor status.
The worm cannot be defeated or killed, so your best bet is to stay away from it. It can't dig under floor tiles, only moving around in sand. It can't get past walls or stairs. Its hit box is rather large, so if you press up against the edge of the pit there is a chance it will get you.
The worm can currently attack creatures such as yetis, goblins, and ogres. It one-shots yetis and goblins, and takes two hits to kill an ogre. This makes it one of the fastest methods for killing these monsters.
In previous versions of wilds, the worm animation would kill the player each time he or she died in a Pit. This lead to the infamous team bombing bug where a player on your team could place a bomb to propel you into the pit without dying. Doing so made the player "no clip" meaning they could walk through walls and over pits without dying. This feature was removed because of the bug's severity. The worm was also free to just wander around in the old wilds ruins, not being stuck in a pit. Players had to get inside a building or run away to evade it.