Shiyu Defense/Critical Node/2026-09-04

The 2026-09-04 Critical Node is a Critical Node in Shiyu Defense, added in Version 3.1.

1st - 4th Frontiers

Frontier Info

• Agent Ether DMG and Ice DMG increase by 35%, while their CRIT DMG increases by 25%.
• When an Agent with Attack specialty hits a Stunned enemy, enemy DEF drops by 25% for 5s. Repeated triggers reset the duration.

Objectives

• - More than 300s remaining
• - More than 180s remaining
• - Defeat all enemies

First Frontier

Stage Details
Enemy Levels: 50
Recommended Attributes
First Half	Second Half
Enemies
First Half
Wave 1	Wave 2
Light Jaeger Light Jaeger Light Jaeger Light Jaeger Rookie Jaeger Rookie Jaeger Rookie Jaeger Rookie Jaeger	Autonomous Support Unit - Lightfoot Rover Lightfoot Rover
Wave 3	Wave 4
Autonomous Support Unit - Heavy Striker Heavy Striker Light Jaeger Light Jaeger Light Jaeger Light Jaeger	—
Second Half
Wave 1	Wave 2
Tyrfing Tyrfing Tyrfing Tyrfing Tyrfing Tyrfing	Arlaune Arlaune
Wave 3	Wave 4
Tyrfing Tyrfing Tyrfing Tyrfing Alpeca Alpeca Alpeca Alpeca	Hati Hati

Second Frontier

Stage Details
Enemy Levels: 55
Recommended Attributes
First Half	Second Half
Enemies
First Half
Wave 1	Wave 2
Strike Jaeger Strike Jaeger Strike Jaeger Strike Jaeger Strike Jaeger Strike Jaeger	Autonomous Support Unit - Heavy Striker Heavy Striker
Wave 3	Wave 4
Strike Jaeger Strike Jaeger Strike Jaeger Strike Jaeger Light Jaeger Light Jaeger Light Jaeger Light Jaeger	Autonomous Support Unit - Guardian Guardian
Second Half
Wave 1	Wave 2
Hollow Thug - Raider Raider Hollow Thug - Raider Raider Hollow Thug - Raider Raider	Hollow Thug - Bulky Intimidator Bulky Intimidator
Wave 3	Wave 4
Hollow Thug - Raider Raider Hollow Thug - Raider Raider Hollow Thug - Poacher Poacher Hollow Thug - Poacher Poacher	Hollow Thug - Bulky Enforcer Bulky Enforcer

Third Frontier

Stage Details
Enemy Levels: 60
Recommended Attributes
First Half	Second Half
Enemies
First Half
Wave 1	Wave 2
Hollow Thug - Rustler Rustler Hollow Thug - Rustler Rustler Hollow Thug - Ambusher Ambusher Hollow Thug - Ambusher Ambusher	Ionized - Doppelganger - Pulchra Doppelganger - Pulchra
Wave 3	Wave 4
Ionized - Doppelganger - Mors Doppelganger - Mors Ionized - Doppelganger - Bellum Doppelganger - Bellum	—
Second Half
Wave 1	Wave 2
Fossor Fossor Fossor Fossor Fossor Fossor Sordidus Sordidus Sordidus Sordidus	Armored Hati Armored Hati
Wave 3	Wave 4
Goblin Goblin Dullahan Dullahan	—

Fourth Frontier

Stage Details
Enemy Levels: 65
Recommended Attributes
First Half	Second Half
Enemies
First Half
Wave 1	Wave 2
Hollow Thug - Wanted Intimidator Wanted Intimidator Hollow Thug - Wanted Enforcer Wanted Enforcer	Troublemaker - Wanted Enforcer Wanted Enforcer
Wave 3	Wave 4
—	—
Second Half
Wave 1	Wave 2
Haytor Haytor	—
Wave 3	Wave 4
—	—

Fifth Frontier

Objectives

• - Get an S-rating in all rooms and achieve a total score of 100,000
• - Get an S-rating in all rooms
• - Get an A-rating in all rooms
• - Get a B-rating in all rooms

Room 1

Room 1
Details: Agent Ether DMG and Ice DMG increase by 35%, while their CRIT DMG increases by 25%. When an Agent with Attack specialty hits a Stunned enemy, enemy DEF drops by 25% for 5s. Repeated triggers reset the duration. In this stage, dealing DMG to enemies earns you DMG Score. Defeating a single normal/elite enemy will grant you an instance of Elimination Score. In this stage, scores earned at different times will receive additional multiplier bonuses. The earlier in the challenge, the higher the multiplier. The total score cap (including bonus) is 50,000.
Challenge Target: - Reach 25,000 points for the current room - Reach 16,000 points for the current room - Reach 8,000 points for the current room
Enemy Details
Enemy Level: 70 Enemy Weakness: Enemy Resistance:
Wave 1	Wave 2
Corrupted Bandit - Greedy Ranger Greedy Ranger Corrupted Bandit - Greedy Ranger Greedy Ranger Corrupted Bandit - Greedy Ranger Greedy Ranger	Ionized - Pugnus Ionized - Pugnus Corrupted Bandit - Vicious Striker Vicious Striker Corrupted Bandit - Vicious Striker Vicious Striker
Wave 3	Wave 4
Tepes Tepes	—

Room 2

Room 2
Details: If there are 2/3 Agents with the Anomaly specialty in the squad, Attribute Anomaly DMG dealt by Agents increases by 10%/60%, and the whole squad initially gains 500/1,500 Decibels upon entering combat. In this stage, dealing DMG to enemies earns you DMG Score. Defeating a single normal/elite enemy will grant you an instance of Elimination Score. In this stage, scores earned at different times will receive additional multiplier bonuses. The earlier in the challenge, the higher the multiplier. The total score cap (including bonus) is 50,000.
Challenge Target: - Reach 25,000 points for the current room - Reach 16,000 points for the current room - Reach 8,000 points for the current room
Enemy Details
Enemy Level: 70 Enemy Weakness: Enemy Resistance:
Wave 1	Wave 2
Miasmic - Frenzied Maniac Miasmic - Frenzied Maniac Miasmic - Trinox Miasmic - Trinox	Autonomous Assault Unit - Airspace Sentinel Airspace Sentinal
Wave 3	Wave 4
—	—

Room 3

Room 3
Details: Agent DEF increases by 15%, and attacks against enemies ignore 20% of their Electric RES. After an Agent uses EX Special Attack, their CRIT Rate increases by 5% and CRIT DMG increases by 20% for 15s. Repeated triggers reset the duration. In this stage, dealing DMG to enemies earns you DMG Score. Defeating a single normal/elite enemy will grant you an instance of Elimination Score. In this stage, scores earned at different times will receive additional multiplier bonuses. The earlier in the challenge, the higher the multiplier. The total score cap (including bonus) is 50,000.
Challenge Target: - Reach 25,000 points for the current room - Reach 16,000 points for the current room - Reach 8,000 points for the current room
Enemy Details
Enemy Level: 70 Enemy Weakness: Enemy Resistance:
Wave 1	Wave 2
Autonomous Support Unit - Lightfoot Rover MK II Lightfoot Rover MK II Miasmic Trooper - Shieldguard Miasmic Trooper - Shieldguard Miasmic Trooper - Shieldguard Miasmic Trooper - Shieldguard Miasmic Trooper - Shieldguard Miasmic Trooper - Shieldguard Miasmic Trooper - Cannoneer Miasmic Trooper - Cannoneer Miasmic Trooper - Cannoneer Miasmic Trooper - Cannoneer	Lockspring (Boss) Lockspring (Boss)
Wave 3	Wave 4
—	—

Other Languages

Language	Official Name
English	Critical Node
Chinese (Simplified)	剧变节点 Jùbiàn Jiédiǎn
Chinese (Traditional)	劇變節點 Jùbiàn Jiédiǎn
Japanese	激変ノード Gekihen Nōdo
Korean	격변격변激變 구간구간區間 Gyeokbyeon Gugan
Spanish	Nodo inestable
French	Nœud critique
Russian	Критический узел Kriticheskiy uzel
Thai	Critical Node
Vietnamese	ĐiểmĐiểm點 Biến ĐộngBiến Động變動
German	Turbulente Knoten
Indonesian	Critical Node
Portuguese	Nódulo Crítico

Change History