Defense Scenarios are tower defense mini-games for the Mutual Security Enhancing Simulation event in Genshin Impact 4.7. See all Defense Scenario stages, how to play, and event rewards here!

Mutual Security Enhancing Simulation Guides
Event Guide	Assault	Defense

All Defense Scenarios Stages and Unlock Dates

Defense Scenarios Stages

Stage	Unlock Date
Build an AA Umbrella	June 7, 2024
Overwhelming Air Superiority	June 7, 2024
Force Concentration	June 7, 2024
Flexible Defensive Countermeasures	June 9, 2024
Stronghold Firepower Response	June 9, 2024
Effective AoE and Delaying Actions	June 11, 2024
Minefield-Supported Combined Arms Operation	June 11, 2024

Stage 1: Build an AA Umbrella

Build an AA Umbrella Stage Overview
Leadership Skill	Sweeping Whirlwind: The wild winds converge, drawing in opponents within a certain radius for 6s and dealing Anemo DMG. 45s CD. Has 2 initial usages.
Combat Units
Frontline Building
Enemies

Place As Much AOE Units as You Can!

Stage 1 of Defense Scenario is loaded with Team units who can bruteforce their way through your home base with ease. Make sure you have your Pyro Potioneer and Pyro Mechanism ready to poke the Cicins, and your Blazing Axe Mitachurl and Sunfrost, to attack aground enemies!

Defense Scenario Stage 1 Guide

Stage 2: Overwhelming Air Superiority

Overwhelming Air Superiority Stage Overview
Leadership Skill	Blazing Breakthrough: Unleashes flames that deal Pyro DMG to opponents and lower their DEF. 45s CD. Has 2 initial usages.
Combat Units
Frontline Building
Enemies

Reserve Your Leadership Skill on Beefier Enemies!

Stage 2 of the Defense Scenario is the most straightforward of all stages, so make sure to leverage on your units' strengths and weaknesses to easily defend your Home Base.

With the Mitachurl, and Ruin Guard leading the opponent's infantry, make sure to reserve your Leadership Skill: Blazing Breakthrough for them, as this will lower their defense so your units can easily defeat them!

Defense Scenario Stage 2 Guide

Stage 3: Force Concentration

Force Concentration Stage Overview
Leadership Skill	Blazing Breakthrough: Unleashes flames that deal Pyro DMG to opponents and lower their DEF. 45s CD. Has 2 initial usages.
Combat Units
Frontline Building
Enemies

Take Note of Enemies' Elemental Types!

The third stage of Defense Scenarios forces players to not only defend their home bases, but also analyze the elemental affinity of each enemy. Each flank of the stage will have at least a Specter or Slime spawning, which means placing a combat unit of the same elemental type renders all your attacks useless!

Defense Scenario Stage 3 Guide

Stage 4: Flexible Defensive Countermeasures

Flexible Defensive Countermeasures Stage
Leadership Skill	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. 45s CD. Has 2 initial usages.
Combat Units
Frontline Building
Enemies

Cover Both Flanks with Units in Between!

Effectively cover both flanks by placing your combat units in between the two paths. This way, their detection area will cover both sides and they can deal with enemies no matter which Flank they come from!

Defense Scenario Stage 4 Guide

Stage 5: Stronghold Firepower Response

Flexible Defensive Countermeasures Stage
Leadership Skill	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. 45s CD. Has 2 initial usages.
Combat Units
Frontline Building
Enemies

Use Shackling Mines on Bigger Opponents

Similar to the fourth stage, place your combat units in between the two paths to cover more ground. Shackling Mines are best used against the larger or more aggressive opponents to stop them in their tracks!

Defense Scenario Stage 5 Guide

Stage 6: Effective AoE and Delaying Actions

Effective AoE and Delaying Actions Stage
Leadership Skill	Blazing Breakthrough: Unleashes flames that deal Pyro DMG to opponents and lower their DEF. 45s CD. Has 2 initial usages.
Combat Units
Frontline Building
Enemies

Keep the Left Flank Busy and Focus on the Right

Keep the Ruin Guards on the Left Flank busy with your Stronghold Mechanisms while you whittle them down with a unit or two, and focus your efforts on the right flank to thin down the opposition.

Defense Scenario Stage 6 Guide

Stage 7: Minefield-Supported Combined Arms Operation

Minefield-Supported Combined Arms Operation Stage
Leadership Skill	Sweeping Whirlwind: The wild winds converge, drawing in opponents within a certain radius for 6s and dealing Anemo DMG. 45s CD. Has 2 initial usages.
Combat Units
Frontline Building
Enemies

Play Reactively and Play to Counter

As there is plenty of variety in the enemy ranks, players must strategically place their units to effectively counter theirs and gain the advantage.

And if all else fails, placing down more units than the enemy should do the trick!

Defense Scenario Stage 7 Guide

How to Play Defense Scenarios

Defend Your Stronghold

To play Defense Scenarios, you must defend your Stronghold, and avoid receiving damage as much as you can. Your Stronghold is located at the very center of the Scenario platform, each featuring a different terrain layout, making each challenge unique!

Deploy Combat Units

To defend your Stronghold, you must deploy combat units to help defend, and attack enemies from all sides of the terrain. Each Combat Unit have strengths and weaknesses duly logged based on the Suppression Rules, and exploiting them gives you advantage on each stage.

Collect Supply Beacons

After defeating enemies, they will drop Supply Beacons which you must collect, no matter what. Supply Beacons are an extremely important resource in-game, which lets you summon additional Combat Units or Frontline Building, to easily turn the tide in the battle!

Be mindful of the screen prompt that a Supply Beacon has appeared, as these beacons can easily be overlooked, especially in the heat of the moment!

Leverage on Elemental Reactions

Elemental Reactions also work inside the Defense Scenarios, so make sure to use this to your advantage, especially when facing difficult enemies!

Defense Scenario Information

Part of the Mutual Security Enhancement Simulation Event

Defense Scenario is part of the Mutual Security Enhancement Simulation event, Version 4.7's Flagship Event. This tower defense mini-game runs alongside the Assault Scenario mini-game, where we actively defeat enemies to capture their base!

Mutual Security Enhancing Simulation

Defense Scenario Rewards

All Defense Scenario Stage Rewards

Stage	Objectives	Rewards
1	Complete the Scenario	Primogem x50 Iron Talisman of the Forest Dew x5 Analysis Progress x80
	Complete the Scenario with Defense Level over 50%	Hero's Wit Guide to Admonition Analysis Progress x80
	Complete the Scenario with Defense Level over 75%	Mora Agnidus Agate Fragment Analysis Progress x80
2	Complete the Scenario	Primogem x50 Oasis Garden's Kindness x5 Analysis Progress x80
	Complete the Scenario with Defense Level over 50%	Hero's Wit Guide to Ingenuity Analysis Progress x80
	Complete the Scenario with Defense Level over 75%	Mora Varunada Lazurite Fragment Analysis Progress x80
3	Complete the Scenario	Primogem x50 Remnant Glow of Scorching Might x5 Analysis Progress x80
	Complete the Scenario with Defense Level over 50%	Hero's Wit Guide to Praxis Analysis Progress x80
	Complete the Scenario with Defense Level over 75%	Mora Vayuda Turquoise Fragment Analysis Progress x80
4	Complete the Scenario	Primogem x50 Chapter of an Ancient Chord x5 Analysis Progress x80
	Complete the Scenario with Defense Level over 50%	Hero's Wit Guide to Equity Analysis Progress x80
	Complete the Scenario with Defense Level over 75%	Mora Shivada Jade Fragment Analysis Progress x80
5	Complete the Scenario	Primogem x50 Sublimation of Pure Sacred Dewdrop x5 Analysis Progress x80
	Complete the Scenario with Defense Level over 50%	Hero's Wit Guide to Order Analysis Progress x80
	Complete the Scenario with Defense Level over 75%	Mora Prithiva Topaz Fragment Analysis Progress x80
6	Complete the Scenario	Primogem x50 Analysis Progress x80 Wine Goblet of the Pristine Sea x5
	Complete the Scenario with Defense Level over 50%	Analysis Progress x50 Hero's Wit x5 Guide to Order x5
	Complete the Scenario with Defense Level over 75%	Analysis Progress x50 Mora x50,000 Vajrada Amethyst Fragment x2
7	Complete the Scenario	Primogem x50 Analysis Progress x80 Hero's Wit x5
	Complete the Scenario with Defense Level over 50%	Analysis Progress x50 Hero's Wit x5 Sanctifying Unction x5
	Complete the Scenario with Defense Level over 75%	Analysis Progress x50 Mora x50,000 Nagadus Emerald Fragment x2

Genshin Impact Related Guides

Mutual Security Enhancing Simulation

Security Enhancing Simulation Guides

Mutual Security Enhancing Simulation Guides
Assault Scenarios	Defense Scenarios

Assault Scenario Stage Guides

Assault Scenario Stage Guides
1 - Power Algorithm	2 - Outflank and Encircle
3 - Saturation Fire Theory	4 - Contested River Crossings
5 - Maneuver, Maneuver, and More Maneuver	6 - Tactical Reserves
7 - Crushing Pincer Maneuver

Defense Scenario Stage Guides

Defense Scenario Stage Guides
1 - Build an AA Umbrella	2 - Overwhelming Air Superiority
3 - Force Concentration	4 - Flexible Defensive Countermeasures
5 - Stronghold Firepower Response	6 - Effective AoE and Delaying Actions
7 - Minefield-Supported Combined Arms Operation

All Event Guides

List of Current & Upcoming Events