Zones and threats

Threat levels

Threat	EXP	Gold	Drop	Max rarity	Variants
Normal	×1	×1	×1	Legendary	no
High	×1.15	×1.15	×1.2	Legendary	no
Severe	×1.3	×1.3	×1.4	Kaiju-Class	yes
Critical	×1.45	×1.45	×1.6	Kaiju-Class	yes
Catastrophic	×1.6	×1.6	×1.8	Kaiju-Class	yes

Zones

Threat	Zone	Zone	Levels	Kaiju	Boss
Normal	Harbor District	1	1–5	Spiny Sewer Rat	Queen of the Galleries
Normal	Harbor District	2	6–10	Rust Crab	Colossus Crab
Normal	Harbor District	3	11–15	Acid Gull	Dock Harpy
Normal	Harbor District	4	16–20	Dock Sludge	Primordial Ooze
Normal	Subway Tunnels	1	21–25	Ash Larva	Larva Mother
Normal	Subway Tunnels	2	26–30	Rail Bat	Siren Bat
Normal	Subway Tunnels	3	31–35	Electric Centipede	High-Voltage Centipede
Normal	Subway Tunnels	4	36–40	Armored Mole	Digger King
Normal	Quarantine Zone	1	41–45	Walking Fungus	Mycelium Colony
Normal	Quarantine Zone	2	46–50	Mutant Hound	Pack Alpha
Normal	Quarantine Zone	3	51–55	Pustular Wasp	Hive Queen
Normal	Quarantine Zone	4	56–60	Mist Specter	Living Mist
Normal	Contaminated Bay	1	61–65	Voltaic Eel	Voltaic Leviathan
Normal	Contaminated Bay	2	66–70	Toxic Urchin	Elder Urchin
Normal	Contaminated Bay	3	71–75	Abyssal Octopus	Reef Kraken
Normal	Contaminated Bay	4	76–80	Armored Shark	Monolith Shark
Normal	Crater Zero	1	81–85	Wandering Crystal	Crystal Heart
Normal	Crater Zero	2	86–90	Magma Golem	Magma Titan
Normal	Crater Zero	3	91–95	Rift Shade	Rift Herald
Normal	Crater Zero	4	96–100	Primordial Wyrm	Ancestral Wyrm
High	Harbor District	1	101–105	Spiny Sewer Rat	Queen of the Galleries
High	Harbor District	2	106–110	Rust Crab	Colossus Crab
High	Harbor District	3	111–115	Acid Gull	Dock Harpy
High	Harbor District	4	116–120	Dock Sludge	Primordial Ooze
High	Subway Tunnels	1	121–125	Ash Larva	Larva Mother
High	Subway Tunnels	2	126–130	Rail Bat	Siren Bat
High	Subway Tunnels	3	131–135	Electric Centipede	High-Voltage Centipede
High	Subway Tunnels	4	136–140	Armored Mole	Digger King
High	Quarantine Zone	1	141–145	Walking Fungus	Mycelium Colony
High	Quarantine Zone	2	146–150	Mutant Hound	Pack Alpha
High	Quarantine Zone	3	151–155	Pustular Wasp	Hive Queen
High	Quarantine Zone	4	156–160	Mist Specter	Living Mist
High	Contaminated Bay	1	161–165	Voltaic Eel	Voltaic Leviathan
High	Contaminated Bay	2	166–170	Toxic Urchin	Elder Urchin
High	Contaminated Bay	3	171–175	Abyssal Octopus	Reef Kraken
High	Contaminated Bay	4	176–180	Armored Shark	Monolith Shark
High	Crater Zero	1	181–185	Wandering Crystal	Crystal Heart
High	Crater Zero	2	186–190	Magma Golem	Magma Titan
High	Crater Zero	3	191–195	Rift Shade	Rift Herald
High	Crater Zero	4	196–200	Primordial Wyrm	Ancestral Wyrm
Severe	Harbor District	1	201–205	Spiny Sewer Rat	Queen of the Galleries
Severe	Harbor District	2	206–210	Rust Crab	Colossus Crab
Severe	Harbor District	3	211–215	Acid Gull	Dock Harpy
Severe	Harbor District	4	216–220	Dock Sludge	Primordial Ooze
Severe	Subway Tunnels	1	221–225	Ash Larva	Larva Mother
Severe	Subway Tunnels	2	226–230	Rail Bat	Siren Bat
Severe	Subway Tunnels	3	231–235	Electric Centipede	High-Voltage Centipede
Severe	Subway Tunnels	4	236–240	Armored Mole	Digger King
Severe	Quarantine Zone	1	241–245	Walking Fungus	Mycelium Colony
Severe	Quarantine Zone	2	246–250	Mutant Hound	Pack Alpha
Severe	Quarantine Zone	3	251–255	Pustular Wasp	Hive Queen
Severe	Quarantine Zone	4	256–260	Mist Specter	Living Mist
Severe	Contaminated Bay	1	261–265	Voltaic Eel	Voltaic Leviathan
Severe	Contaminated Bay	2	266–270	Toxic Urchin	Elder Urchin
Severe	Contaminated Bay	3	271–275	Abyssal Octopus	Reef Kraken
Severe	Contaminated Bay	4	276–280	Armored Shark	Monolith Shark
Severe	Crater Zero	1	281–285	Wandering Crystal	Crystal Heart
Severe	Crater Zero	2	286–290	Magma Golem	Magma Titan
Severe	Crater Zero	3	291–295	Rift Shade	Rift Herald
Severe	Crater Zero	4	296–300	Primordial Wyrm	Ancestral Wyrm
Critical	Harbor District	1	301–305	Spiny Sewer Rat	Queen of the Galleries
Critical	Harbor District	2	306–310	Rust Crab	Colossus Crab
Critical	Harbor District	3	311–315	Acid Gull	Dock Harpy
Critical	Harbor District	4	316–320	Dock Sludge	Primordial Ooze
Critical	Subway Tunnels	1	321–325	Ash Larva	Larva Mother
Critical	Subway Tunnels	2	326–330	Rail Bat	Siren Bat
Critical	Subway Tunnels	3	331–335	Electric Centipede	High-Voltage Centipede
Critical	Subway Tunnels	4	336–340	Armored Mole	Digger King
Critical	Quarantine Zone	1	341–345	Walking Fungus	Mycelium Colony
Critical	Quarantine Zone	2	346–350	Mutant Hound	Pack Alpha
Critical	Quarantine Zone	3	351–355	Pustular Wasp	Hive Queen
Critical	Quarantine Zone	4	356–360	Mist Specter	Living Mist
Critical	Contaminated Bay	1	361–365	Voltaic Eel	Voltaic Leviathan
Critical	Contaminated Bay	2	366–370	Toxic Urchin	Elder Urchin
Critical	Contaminated Bay	3	371–375	Abyssal Octopus	Reef Kraken
Critical	Contaminated Bay	4	376–380	Armored Shark	Monolith Shark
Critical	Crater Zero	1	381–385	Wandering Crystal	Crystal Heart
Critical	Crater Zero	2	386–390	Magma Golem	Magma Titan
Critical	Crater Zero	3	391–395	Rift Shade	Rift Herald
Critical	Crater Zero	4	396–400	Primordial Wyrm	Ancestral Wyrm
Catastrophic	Harbor District	1	401–405	Spiny Sewer Rat	Queen of the Galleries
Catastrophic	Harbor District	2	406–410	Rust Crab	Colossus Crab
Catastrophic	Harbor District	3	411–415	Acid Gull	Dock Harpy
Catastrophic	Harbor District	4	416–420	Dock Sludge	Primordial Ooze
Catastrophic	Subway Tunnels	1	421–425	Ash Larva	Larva Mother
Catastrophic	Subway Tunnels	2	426–430	Rail Bat	Siren Bat
Catastrophic	Subway Tunnels	3	431–435	Electric Centipede	High-Voltage Centipede
Catastrophic	Subway Tunnels	4	436–440	Armored Mole	Digger King
Catastrophic	Quarantine Zone	1	441–445	Walking Fungus	Mycelium Colony
Catastrophic	Quarantine Zone	2	446–450	Mutant Hound	Pack Alpha
Catastrophic	Quarantine Zone	3	451–455	Pustular Wasp	Hive Queen
Catastrophic	Quarantine Zone	4	456–460	Mist Specter	Living Mist
Catastrophic	Contaminated Bay	1	461–465	Voltaic Eel	Voltaic Leviathan
Catastrophic	Contaminated Bay	2	466–470	Toxic Urchin	Elder Urchin
Catastrophic	Contaminated Bay	3	471–475	Abyssal Octopus	Reef Kraken
Catastrophic	Contaminated Bay	4	476–480	Armored Shark	Monolith Shark
Catastrophic	Crater Zero	1	481–485	Wandering Crystal	Crystal Heart
Catastrophic	Crater Zero	2	486–490	Magma Golem	Magma Titan
Catastrophic	Crater Zero	3	491–495	Rift Shade	Rift Herald
Catastrophic	Crater Zero	4	496–500	Primordial Wyrm	Ancestral Wyrm