Efficacy Testing Simulation Arena Event Guide

Efficacy Testing Simulation Arena is the combat mini-game for the Mega Meka Melee event in Genshin Impact 4.0. See all the Efficacy Testing Simulation Arena stages, how to play, and rewards here!

Mega Meka Melee Event Guides
Dance Dance Revolution	Torrential Turbulent Charge	Efficacy Testing Simulation Arena

Efficacy Testing Simulation Arena Schedule and Stages

Event Schedule

Stage	Unlock Date
Day 1 - Replica Tactic	August 24, 2023
Day 2 - Skill Simulation	August 26, 2023
Day 3 - Combat Recreation	August 28, 2023

Efficacy Testing Simulation Arena Day 1 Guide

Efficacy Testing Simulation Arena Day 1 Map

Efficacy Testing Simulation Arena Day 1 Enemies

Areas	Enemies
Replica Tactic I	Treasure Hoarders - Scout x 3 Treasure Hoarders - Pugilist x 1 Geological Survey Mek x 1 Treasure Hoarders - Crusher x 2 Assault Specialist Mek x 1 Construction Specialist Mek x 1
Replica Tactic II	Nimble Harvester Mek x 2 Treasure Hoarders - Marksman x 2 Annihilation Specialist Mek x 1 Treasure Hoarders - Crusher x 2 Suppression Specialist Mek x 1
Replica Tactic III	Recon Log Mek x 2 Treasure Hoarders - Pugilist x 2 Suppression Specialist Mek x 1 Fatui Electro Cicin Mage x 1 Annihilation Specialist Mek x 1

Efficacy Testing Simulation Arena Day 2 Guide

Efficacy Testing Simulation Arena Day 2 Map

Efficacy Testing Simulation Arena Day 2 Enemies

Areas	Enemies
Skill Simulation I	Bubbler Seahorse x 2 Cherubic Sea Hare x 2 Electro Slime x 6 Mutant Electro Slime x 2 Large Electro Slime x 2
Skill Simulation II	Hilichurl Berserker x 2 Hydro Hilichurl Rogue x 1 Frostarm Lawachurl x 1 x 1 Cryo Slime x 2 Hydro Slime x 1 Large Hydro Slime x 2
Skill Simulation III	x 3 Large Cryo Slime x 2 Cryo Slime x 2 Hydro Slime x 3 Large Hydro Slime x 1

Efficacy Testing Simulation Arena Day 3 Guide

Efficacy Testing Simulation Arena Day 3 Map

Efficacy Testing Simulation Arena Day 3 Enemies

Areas	Enemies
Combat Recreation I	Sternshield Crab x 3 Cherubic Sea Hare x 2 Cryo Slime x 4
Combat Recreation II	Large Shatterstone Breacher Primus x 2 Shatterstone Breacher Primus x 2 Large Overgrown Breacher Primus x 1
Combat Recreation III	Fatui Skirmisher (Pyro-Slinger Bracer) x 1 Treasure Hoarders - Hydro Potioneer x 4 Treasure Hoarders - Crusher x 1 Annihilation Specialist Mek x 2 Assault Specialist Mek x 1

Efficacy Testing Simulation Arena Information

Part of the Mega Meka Melee Event

Efficacy Testing Simulation Arena is the combat mini-game for Mega Meka Melee! Explore the wilderness of Fontaine and defeat different kinds of opponents in this sub-event.

Mega Meka Melee Event Guide

How to Play Efficacy Testing Simulation Arena

Go to the Designated Areas

In each stage, players must head to three designated areas and defeat a certain number of opponents to complete the challenge. These areas are marked by two clashing swords
Fontaine Map Guide

Defeat Enemies in Fontaine

To complete an area, simply defeat all the enemies of three waves. Once all enemies are defeated, you can move on to the next area.

Fontaine Map Guide

Efficacy Testing Simulation Arena Rewards

All Efficacy Testing Simulation Rewards

Total Rewards
Primogem x270	Mora x 270,000
Hero's Wit x27	Enigmatic Copper Mainspring x810

Rewards Breakdown

Day 1: Replica Tactic Rewards

Stage	Objective	Rewards
1	Complete Replica Tactic I	Primogem x30 Enigmatic Copper Mainspring x90 Mora x30,000 Hero's Wit x3
	Complete Replica Tactic II	Primogem x30 Enigmatic Copper Mainspring x90 Mora x30,000 Hero's Wit x3
	Complete Replica Tactic III	Primogem x30 Enigmatic Copper Mainspring x90 Mora x30,000 Hero's Wit x3

Day 2: Skill Simulation Rewards

Stage	Objective	Rewards
1	Complete Skill Simulation I	Primogem x30 Enigmatic Copper Mainspring x90 Mora x30,000 Hero's Wit x3
	Complete Skill Simulation II	Primogem x30 Enigmatic Copper Mainspring x90 Mora x30,000 Hero's Wit x3
	Complete Skill Simulation III	Primogem x30 Enigmatic Copper Mainspring x90 Mora x30,000 Hero's Wit x3

Day 3: Combat Recreation Rewards

Stage	Objective	Rewards
1	Complete Combat Recreation I	Primogem x30 Enigmatic Copper Mainspring x90 Mora x30,000 Hero's Wit x3
	Complete Combat Recreation II	Primogem x30 Enigmatic Copper Mainspring x90 Mora x30,000 Hero's Wit x3
	Complete Combat Recreation III	Primogem x30 Enigmatic Copper Mainspring x90 Mora x30,000 Hero's Wit x3

Genshin Impact Related Guides

Mega Meka Melee Event Guide

Mega Meka Melee Mini-Games

Mega Meka Melee Event Guides
Dance Dance Revolution	Torrential Turbulent Charge	Efficacy Testing Simulation Arena

Mega Meka Melee Quest Guides

Mega Meka Melee Event Quests
The Toy War: Shots Fired	The Toy War: Heating Up
The Toy War: An Armistice

Related Gameplay Guides

Fontaine Gameplay Guides
Fontaine Map Guide	Underwater Map Guide

All Genshin Impact Events

List of Current & Upcoming Events