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Mutual Security Enhancing Simulation is a tower defense and assault event in Genshin Impact 4.7. See how to play the Security Enhancing Simulation event, how to get the free Cloudforged bow, how to unlock the event, and all rewards here!
| Mutual Security Enhancing Simulation Guides | ||
|---|---|---|
Event Guide |
Assault |
Defense |
List of Contents
| Stage Scenarios | Unlock Dates |
|---|---|
| Assault Scenarios Unlock Stage 1 - Power Algorithm Stage 2 - Outflank and Encircle Stage 3 - Saturation Fire Theory |
June 7, 2024 |
| Defense Scenarios Unlock Stage 1 - Build an AA Umbrella Stage 2 - Overwhelming Air Superiority Stage 3 - Force Concentration |
|
| Assault Scenarios Stage 4 - Contested River Crossings Stage 5 - Maneuver, Maneuver, and More Maneuver |
June 9, 2024 |
| Defense Scenarios Stage 4 - Flexible Defensive Countermeasures Stage 5 - Stronghold Firepower Response |
|
| Assault Scenarios Stage 6 - Tactical Reserves Stage 7 - Crushing Pincer Maneuver |
June 11, 2024 |
| Defense Scenarios Stage 6 - Effective AoE and Delaying Actions Stage 7 - Minefield-Supported Combined Arms Operation |

To start the Mutual Security Enhancing Simulation event, go to the bridge leading into Liyue Harbor and complete the Commanders and Wargames quest! Simply talk to Su Ding to complete the quest.

In Assault Scenarios, players need to place Combat Units strategically to defeat enemies and capture towers in the opposite base. Players can only choose 6 Combat Units and 1 Leadership Skill to be used in a stage.
Different unit types are stronger or weaker against one another, so make sure to analyze your opponents and the battlefield thoroughly.

For Defense Scenarios, players will instead use their units to defend their home base against waves of enemies from different directions.
Defeated enemies will sometimes drop Support Beacons which can be used to summon additional units to help you!
| Unit Types | Characteristics |
|---|---|
Single-Target |
Strong against AoE Weak against Team |
Team |
Strong against Single-Target Weak against AoE |
AoE |
Strong against Team Weak against Single-Target |
Melee |
Strong against Ranged Weak against Flying |
Ranged |
Strong against Flying Weak against Melee |
Flying |
Strong against Melee Weak against Ranged |
| Unit Status | Characteristics |
Siege |
Only attacks Stronghold mechanisms and will not attack other enemy combat units. |
Cannot Target Flying |
Cannot hit Flying Units and are weak against them. |
Deploy Freely |
Can be deployed anywhere on the field, including outside your base territory. |
| Skill and Description |
|---|
| Sweeping Whirlwind The wild winds converge, drawing in opponents within a certain radius for 6 seconds and dealing Anemo DMG. 45 second CD. Has 2 initial usages. |
| Blazing Breakthrough Unleashes flames that deal Pyro DMG to opponents and lower their DEF. 45 second CD. Has 2 initial usages. |
| Momentous Wave Attack your opponents with billowing waves, dealing AoE Hydro DMG, and causing nearby allied units to recover healt over the next 2.5 seconds. 45 second CD. Has 2 initial usages. |
| List of All Combat Units | ||
|---|---|---|
Pyro Slime
![]() |
Electro Slime
![]() |
Hilichurl Fighter
![]() |
Cryo Hilichurl Shooter
|
Electro Cicin
|
Hydro Cicin
|
Treasure Hoarders - Pyro Potioneer
|
Eremite - Sunfrost
![]() |
Kairagi: Dancing Thunder
![]() |
Kairagi: Fiery Might
![]() |
Hydro Samachurl
![]() |
Electro Hilichurl Shooter
|
Nobushi: Kikouban
|
Cryo Specter
|
Pyro Specter
|
Blazing Axe Mitachurl
![]() |
Geovishap Hatchling
![]() |
Hydro Mimic Finch
![]() ![]() |
Ruin Guard
![]() |
Bubbler Seahorse
|
Suppression Specialist Mek
|
Nimble Harvester Mek
![]() |
Eremite - Desert Clearwater
![]() |
Floating Anemo Fungus
|
| List of All Frontline Buildings | ||
|---|---|---|
Stronghold Mechanism - Pyro
|
Stronghold Mechanism - Cryo
|
Stronghold Mechanism - Hydro
|
Stronghold Mechanism - Electro
|
Home Base
|
Support Beacon
|
Anti-Personnel Mine
|
Shackling Mine
|
|

To play the Mutual Security Enhancing Simulation event, you must be at least Adventure Rank 20, and complete the Archon Quest Prologue Act 3 - Song of the Dragon and Freedom.
Prologue: Act 3 Archon Quest Guide

It's recommended to complete Archon Quest Chapter 4 Act 5, Masquerade of the Guilty, to get the best experience from the event, but it is not required to unlock the event.
Chapter 4 Act 5 Archon Quest Guide

| Event Start | June 7, 2024 |
|---|---|
| Event End | June 17, 2024 |
| How to Unlock | Reach Adventure Rank 20+ Complete Archon Quest Prologue - Act 3 Optional: Complete Archon Quest Chapter 4 Act 5 |
| Event Rewards |
+ 4-Star Bow Cloudforged and Refinement |
The Mutual Security Enhancing Simulation event is a combat and defense event, where players get to use Combat Units against enemies and Mechanici to increase their Analysis Progress and gain rewards!
Other Current & Upcoming Events

Reach 300 Analysis Progress to get the 4-Star bow weapon, Cloudforged, in Mutual Security Enhancing Simulation! You can also get its refinement material, Cam and Cables of Law, through this event.
| Analysis Progress | Rewards |
|---|---|
| Assault Stages | Rewards |
|---|---|
| Power Algorithm | |
| Outflank and Encircle | |
| Saturation Fire Theory | |
| Contested River Crossings | |
| Maneuver, Maneuver, and More Maneuver | |
| Tactical Reserves | |
| Crushing Pincer Maneuver | |
| Defense Stages | Rewards |
| Build an AA Umbrella | |
| Overwhelming Air Superiority | |
| Force Concentration | |
| Flexible Defensive Countermeasures | |
| Stronghold Firepower Response | |
| Effective AoE and Delaying Actions | |
| Minefield-Supported Combined Arms Operation |

Completing certain parts of the event will give you Battle Pass achievements, and let you raise your BP level!
| No known events! |
| Event Guide | Date and Rewards |
|---|---|
Marvelous Merchandise 6.2 Rerun
|
01/05/2026 - 01/12/2026
|
Bing-Bang Finchball
|
12/05/2025 - 12/15/2025
|
Soulblazers' Snowbound Journey
|
12/19/2025 - 01/05/2026
|
Heroic Clash: Saurian Brawl
|
12/29/2025 - 01/07/2026
|
| Event Guide | Date and Rewards |
|---|---|
To Temper Thyself and Journey Far
|
12/01/2025 - 02/23/2026
|
Stygian Onslaught
|
12/10/2025 - 01/13/2026
|
Travelers' Tales
|
Permanently Available after Version 6.0
|
Repertoire of Myriad Melodies
|
Permanently Available
|
Test Run
|
Permanently Available
|
Hangout Events
|
Permanently Available after Version 1.4
|
Baptism of Song
|
Permanently Available
+ Free Barbara
|
Daily Check-In
|
2021/03/01 - Permanently Available
|
Stellar Reunion Returnee Event
|
Permanently Available
|
This is one of the worst events they've ever made. It's not fun, not interesting, and takes a long time to succesfully complete. Who thought this was a good idea?
Mutual Security Enhancing Simulation Event Guide



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I play again after 3year, i forget all about the game except the freely feeling i have when i play, then i play only one round of this and miss 950 primo :). Worse, i want navia in the next banner :)), hope me luck