• Difficulty: Easy.
• Duration: Medium.

First enemies

• Initial enemies: 2 Molten Oscillators (Veteran), Molten Resonator (Veteran) and Molten Stalker (Veteran).
• When one dies: Molten Brawler (Silver).

Tunnel

• Tunnel has 5 pockets each containing a random group of 3 enemies. Enemies run to start of tunnel. You can wait outside and then just skip them
  - Cave Bats, Cave Spiders, Earth Elementals, Embers, Lashtail Devourers, Murellows, Red Oozes, Tar Elementals, Toxic Oozes, Translucent Oozes.
• First pocket: 3 Veterans.
• Second pocket: 1 Silver and 2 Veterans.
• Third pocket: 1 Silver and 2 Veterans
• Fourth pocket: 2 Silver and 1 Veterans
• Fifth pocket: 2 Silver and 1 Veterans.
• After tunnel: A random group of 4 enemies (Champion + 3 Silvers). Needs to be killed to proceed.
  - Embers, Translucent Oozes, Cave Trolls.

Steam traps

• Secret: Turn right before steam to access Orichalcum. It is guarded by 2 Cave Spiders (Silver) and ~10 Spider Hatchlings (Normal) which keep respawning.
• Wait for steam to go off and run past quickly.
• Steam: Very high damage (50% of maximum health), and Knockback (Stability gets removed).

Weapon testing

• Bug: Door won't open if you wipe. You must leap over fence (right side).
• While in area you have Stressed-debuff which deals and heals 1 damage every few seconds. This prevents getting out-of-combat regeneration and switching stuff.
• 3 tests in random order:
  - At each corner crushers use Pound.
  - Multiple Fire Tornadoes appear on random sides and move over area.
  - Multiple waves of multiple Fireballs at whole area.
• Pound: Growing PBAoE-field. Passing causes ~1500 damage and Knockdown (2 s). Can't be blocked. "Crushers smashing".
  - Jump over or evade.
  - Easier if you stand in one corner (only closest one may hit you).
• Fire Tornado (2nd test): Piercing projectile. Medium damage, Burning (656 dmg in 2 s) and Launch (2.4 s). "Moving fire effects".
  - Look from which side they are coming and hide behind Core.
  - Evade.
  - Bug: Stand on corner near Dredge for safe-spot.
• Fireball: Projectile with ticking AoE. Initial effect: ~500 damage. Burning per tick.
  - Find location which isn't getting hit. Move if needed.
  - Bug: Stand on corner near Dredge for safe-spot (projectile will hit wall).
• After 1st test: 4 Molten Shamans (Veteran) appear at sides (respawns if killed). Damage Core to 75% to proceed (enemies disappear).
  - Stay close to middle to avoid aggroing!
• After 2nd test: Molten Protector (Veteran) appears at middle near entrance (respawns if killed). Damage Core to 50% to proceed (enemy disappears).
  - If you stay at opposite side you can avoid aggro (and Shielding).
• After 3rd test: Previous enemies (4 + 1) appear. Damage Core to 25% to proceed (enemies disappear).
  - If you stay at opposite side and near Core you can avoid all aggro.
• 4th test: All tests go on. Damage Core to 0% to proceed.

Freezer

• All enemies can be skipped, but you must destroy door at the end. If NPCs die they must be resurrected normally. After door run to right and jump over fence to lose aggro.
  - Much easier and faster just kill everything (unless you know what you are doing).
• Gain Supercooled-stacks (damage per tick) when close to Coolant Box (Structure).
  - You don't have to destroy Boxes but makes fighting easier.
• Molten Gunner (Silver), 3 Veteran-Molten (Axe Fiend, Bladestorm, Disaggregator, Oscillator, Resotator, Shadowblade).
• Molten Brawler (Silver) and Molten Gunner (Silver) protect Coolant Box.
• Molten Axe Fiend (Veteran), Molten Shadowblade (Veteran) and Molten Shaman (Silver) protect Coolant Box.
• 2 Molten Axe Fiend (Veteran), Molten Disaggregator (Veteran), Molten Effigy (Veteran) and 2 Molten Shaman (Silver) protect Coolant Box.
• Ambush when you hit the gate: Molten Brawler (Silver) and Molten Gunner (Silver).
  - Don't hit gate until area is clear.

Prisoners

• Bug: Don't kill enemies near prisoners unless NPCs are with you. If you do, dungeon may get stuck.
• Bug: Don't aggro any enemies while NPCs talk or dungeon may get stuck.
• First prisoner: Molten Axe Fiend (Veteran), Molten Oscillator (Veteran) and Molten Fire Shaman (Veteran).
• Secret: Corpse in thingy hanging from ceiling.
• Molten Protector (Silver) and Molten Axe Fiend (Veteran).
• Second and third prisoner: Molten Gunner (Silver), Molten Shaman (Silver), Molten Fire Shaman (Veteran), Molten Axe Fiend (Veteran) and Molten Stalker (Veteran),
• Molten Protector (Silver), Molten Oscillator (Veteran) and Molten Disaggregator (Veteran).
• Fourth prisoner: Molten Gunner (Silver), Molten Shaman (Silver) and Molten Brawler (Silver).
• Molten Protector (Silver) and Molten Resonator (Veteran).
• Fifth prisoner: Molten Gunner (Silver), Molten Brawler (Silver) and Molten Shaman (Silver)
• Molten Protector (Silver) and Molten Blademaster (Veteran).
• Secret: Corpse under bridge.
• Sixth prisoner: Molten Gunner (Silver), Molten Brawler (Silver) and Molten Shaman (Silver).
• Last 4 prisoners: Molten Protector (Silver), Molten Gunner (Silver) and Molten Shaman (Silver).

After prisoners

• Secret: Corpse before gate on right.
• Molten Gunner (Silver), Molten Smoke Shaman (Veteran), Molten Disaggregator (Veteran) and Molten Igniter (Veteran).
• Molten Protector (Silver) and Molten Mining Suit (Veteran).
• Steam trap: Wait for opening and rush in. Or just use Stability.
  - Disable right after corner on right.

End bosses

• Molter Berserker (Legendary) and Molten Firestorm (Legendary).
  - Decided which one to focus (I suggest Firestorm, Berserker is easy to kite and Firestorm deals good ranged damage).
  - If you wipe and bosses are near bridge it is possible to pull them over (even split them up).
• At 75%: Other boss gains Enraged (50 stacks).
• At 50%: Other boss gains Enraged (50 stacks).
• At 25%: Other boss gains Enraged (50 stacks).
• At 0%: Other boss gets fully healed and enters Solo-phase. All players and NCPs get resurrected and fully healed.
• Enraged: Uses different attacks. Hit to remove stack. End effect: Stun (~10 s).

Molten Berserker (Legendary)

• Smash (1): Melee [~1000 damage]. Basic attack. "Swings left arm (0.2 s)".
  - Does full combo even though if it doesn't hit.
  - Tank.
• Bash (2): 2 melee-hits in 0.8 s [~1000 damage per hit]. "Swings left arm (0.5 s)".
• Uppercut (3): Cone [~2000 damage]. "Hugs hands and raises them (1 s)".
  - Evade, block, out-range or just tank.
• Shadowstep: Teleport to target. Only used at distant targets. "Turns right and leaps (0.5 s)".
  - If Clap is active this attack causes it to hit (it's bit weird).
• Pound/Clap: Used 1 time. Pound if target is at distance. Clap if target is at melee. Also used skill is bit random. "Glows and jumps (1 s)".
• Pound: Growing PBAoE-field. Passing causes ~4250 damage. Min-range(stack). Max-range(~1200). Can't be blocked. "Jumps, white ring".
  - Evade, jump over, stay inside Berserker or get out of range.
  - Don't run along the ring or you get constantly hit!
• Clap: Growing PBAoE-field. Passing causes ~4250 damage and Launch (2.4 s). Min-range(stack). Max-range(~1200). Can't be blocked. "Claps, blue ring".
  - Evade, jump over, stay inside Berserker or get out of range.
  - Has different hit-box than Pound, evade/jump bit later.
  - Don't run along the ring or you get constantly hit!
  - Seems bit buggy (hits when its not supposed to hit).

Molten Berserker, Enraged (Legendary)

• Smash (1): ~1250 damage and Knockdown (1.5 s).
  - Keep kiting. Try bait this attack (evade/block) to force him to do entire combo.
  - Use Stability, teleport or well-timed stun-break.
• Bash (2): ~1250 damage and Knockdown (1.5 s) per hit.
• Uppercut (3): ~2500 damage and Launch (2.3 s).
• Pound/Clap: Used 2 times (3-4 times when other boss is below 25%).

Molten Berserker, Solo (Legendary)

• Pound/Clap: Used 4 times.
• Shield (1): Evade + Ticking AoE-field. Passing causes Burning (1 s). Shielding (2 s) every 2 s. "Hands down (0.5 s)".
  - Let Berserker come out of Shielding.
• Jetpack Pound (2): Growing PBAoE. Extreme damage and Knockdown. Can't be blocked. "Rises to air, laughes and drops to ground (5 s)".
  - Evade or get out of range. (jump may work)
• Frost Siege (3): ~30 delayed (2 s) AoEs in area during 15.5 s. Low damage and Knockdown (3 s). Non-channeled.
• Shielding: Take no damage.

Molten Firestorm (Legendary)

• Fireball: Projectile with ticking AoE. Medium damage and Burning (1136 dmg in 2 s). Low damage and Burning (1136 dmg in 2 s) per tick.
  - Damage seems inconsistent. Avoid every circle.
• Fireball: Projectile with 2 ticking AoEs. ~3500 damage and Burning (1136 dmg in 2 s). ~3500 damage and Burning (1136 dmg in 2 s) per tick.
  - Damage seems inconsistent. Avoid every circle.
• Bouncing Fireball: Projectile with ticking AoE (~10 hits in 10 s), bounces once on ground. ~1000 damage per hit. ~1000 damage and Burning (568 in 1 s) per tick.
• Retreat: Ticking AoE + Evade back + PBAoE. ~1000 damage and Burning (568 in 1.4 s) per hit.

Molten Firestorm, Enraged (Legendary)

• Fireball: Bigger radius.
• Bouncing Fireball: Projectile does high damage and Launch (2.3 s). Bigger AoEs.

Molten Firestorm, Solo(Legendary)

• Sonix Vortex: Permanent AoE-ring. ~750 damage and Launch. Used at the beginning.
  - Makes fighting area smaller. Prevents getting to outer side.
  - Firestorm can't be meleed while he is in Vortex.

Escape

• Plant 3 bombs (at NPC), talk to NPC and run.
  - Wait until everyone is close because door closes quickly.
  - Doesn't matter if you won't make it (you get downed and teleported to elevator).