Magma Worm

The  is a returning Boss Monster in Risk of Rain 2. Being a Boss, the Magma Worm may be encountered after initiating a stage's Teleporter Event. It can otherwise spawn naturally during higher difficulties.

The Magma Worm has a stronger variant, the. The Overloading Worm is not considered an Elite Magma Worm, but rather a unique Monster.

Behavior
Magma Worms do not attack players in the same vein as other bosses; their primary form of attack is to targets that it makes contact with. Each time a Magma Worm emerges from the ground, the screen changes color to a bright orange to signify the heat. Instead of traditional attacks, the Magma Worm instead has multiple modes of movement.

All attacks have a proc coefficient of 1.0.

Leaping
The Magma Worm erupts out of the ground and launches itself high into the sky, before burrowing back into the ground once more. It will attempt to emerge from the ground close to its target to burn them, and it will aim at a target as it descends and prepares to burrow again. Wherever the Worm exits or enters the ground, it causes molten fireballs to erupt from the ground, which explode on impact.

Grounded
The Magma Worm burrows quickly in and out of the ground and remains in close proximity to its target. When it moves like this, it does not cause fireballs to appear.

Loot
Main Article: Molten Perforator

If the Magma Worm is the Teleporter Boss, there is a 15% chance for the Uncommon item (that drops as a reward for defeating the Magma Worm) to be replaced by its Boss item, the.

Tips

 * It is advisable to fight Magma Worms in wide open spaces, as fighting them in cramped spaces can be troublesome. For example, in Rallypoint Delta's caves, when the Worm leaps, players not only cannot efficiently damage it (as it continuously disappears into the rock above), but they cannot see where the it is about to land as it burrows back into the ground. In a situation where a Magma Worm is spawned from a Teleporter placed in an unfortunate position, it may be a good idea to lead the Worm to a more suitable fighting area before returning to the Teleporter area.
 * Marking the Magma Worm (middle mouse button by default) can help keep track of it when it travels inside terrain.
 * Because of how much ground they traverse compared to other enemies, it is possible that Magma Worms may change targets mid-attack if a new potential victim comes into range. This might be another player, or even an unlucky turret.

Version History

 * PC Patch v1.1.1.2
 * Bug Fixes
 * Updated Magma Worm’s movement speed to be more consistent
 * Anniversary Update
 * Major Content
 * Added New Lore Entry: Magma Worm
 * Quality of Life
 * 🌧 Reduced screen shake and post-process brightness on Magma Worm. Clean up projectiles to be less opaque.
 * Early Access Content Update 5
 * Gameplay Changes
 * 🌧Maximum “Blink” Distance: 600m ⇒ 300m
 * Now considerably more aggressive and better able to hit targets Developer Notes: The blink behavior of both the Imp Overlord and the Magma Worm allows it to follow players between platforms, but it leads a lot of the times to the bosses blinking across the map to attack drones and turrets. While they may still do that, it’ll be a bit less pronounced.
 * Quality of Life
 * Reduced the audio levels of the Magma Worm
 * Early Access Artifacts Content Update
 * Bug Fixes
 * 🌧 Fix Magma Worms and similar monsters from spawning as an elite version in Prismatic Trials. Goodbye.
 * Early Access Patch (Build ID No.3731106)
 * Gameplay Changes
 * [Community Suggestion] Now switches between two modes of movement.
 * Leaping: goes high in the air, raining fireballs when it impacts the ground. This was the Magma worm's only previous stance.
 * Grounded: Snakes low but fast around on the ground.
 * *The intent is to give a break from the Worm's constant leaping and to give short range characters a chance to attack. The Worm should also be an intense fight, not a slog.*
 * [Community Suggestion] Reduced armor from 20 to 15 to make it less tanky.
 * [Community Suggestion] Can now jump off of platforms so it doesn't get stuck on certain ledges.