Honkai: Star Rail

Ruin 4 Surface and Deep Exploration Guide

Honkai Star Rail - Ruin 4 Surface and Deep Exploration Guide

The Underground Treasure Hunt Day 4 is the Ruin 4 Stages for the Surface and Deep Exploration Levels in Honkai: Star Rail. See the best characters for Ruin 4, the exploration guides, and all the rewards here!

Underground Treasure Hunt Guides
Honkai Star Rail - Underground Treasure HuntEvent Guide Honkai Star Rail - Underground Treasure Hunt Ruin 1Ruin 1 Honkai Star Rail - Underground Treasure Hunt Ruin 2Ruin 2
Honkai Star Rail - Underground Treasure Hunt Ruin 3Ruin 3 Honkai Star Rail - Underground Treasure Hunt Ruin 4Ruin 4 Honkai Star Rail - Underground Treasure Hunt Ruin 5Ruin 5

Best Characters for Ruin 4

Best Team for Ruin 4

Underground Treasure Hunt Day 4 Best Team
Blade Blade Silver Wolf Silver Wolf Bronya Bronya Luocha Luocha

Blade and Luocha are the trial characters for Day 4 which specializes in Basic ATK DMG, Blade's speciality! Luocha also heals Blade whenever his HP goes down too much.

Silver Wolf and Bronya are the best for this stage because Silver Wolf can apply another weakness while Bronya can give Blade more turns and give hims massive buffs.

There's a chance that you can find Bronya within the ruins. If you don't have her or Silver Wolf, you can use Serval and Pela instead. There are also many enemies with ice as their weaknesses.

Other Trial Characters and Alternatives

Trial Characters Found in Ruins
Star Rail - Bronya Star Rail - Clara Star Rail - Gepard Star Rail - Seele Star Rail - Hook Star Rail - Natasha Star Rail - Pela Star Rail - Sampo Star Rail - Serval
Alternative Characters
Star Rail - Bailu Star Rail - Bronya Star Rail - Himeko Star Rail - Jing Yuan Star Rail - Welt Star Rail - Asta Star Rail - Dan Heng Star Rail - March 7th Star Rail - Qingque Star Rail - Tingyun Star Rail - Yukong Star Rail - Luka

Ruin 4 Exploration Guides

How to Reach Surface Exploration Level 8

Level Ruin 4 Surface Exploration Day 4
1
Level Details: Relic Trotter - A Sequence Trotter carrying an ancient relic appears!
• Immediately head for the Treasure Trotter enemy and if you get blocked by another enemy, defeat them.
• Defeat the Sequence Trotter and the other enemies with it to get a relic.
• Keep pressing on the tiles until you find another Elite Enemy then defeat it.
• The door card is likely at the top or bottom row of the area.
2
Level Details: Relic Trotter - A Sequence Trotter carrying an ancient relic appears!
• Press around the tiles available to you and near the ambush ability enemy. You'll likely get a bomb.
• Use the bomb on the furthest ambush enemy and look for more bombs if you also have two ambush enemies.
• Head for Sequence Trotter enemy before it runs out of time. Defeat it to get another relic.
• Invite the other trial character within the area to aid you in the stage.
• The door card is likely on the top or bottom row of the stage.
3
Level Details: Bomb Trotter - A Trotter of Destruction carrying an ancient bomb appears!
• Go to the Trotter of Destruction and defeat it immediately. Use the relic you got from Level 2 to do it fast.
• Once done, all the tiles will be flipped and you can get what you need from it.
• Use bombs on any enemies with a summoning ability.
• The door card will likely be on the top or bottom row of the stage.
4
Level Details: Supply Trotter - A Trotter of Abundance carrying supplies appears!
• Go to the Trotter of Abundance and defeat it at the start.
• After that invite the trial character in your stage if you have them.
• The door card is likely on the left or right column. Once you get it, you can skip defeating the rest of the enemies and head for the next level!
5
Level Details: Equipment Trotter - A Trotter of Preservation carrying a piece of ancient equipment appears!
• Use Ancient Bombs on the Ambush Enemies.
• Then head straight for the Trotter of Preservation to defeat them.
• The door card is likely on the top or bottom rows of the stage.
6
Level Details: Card Trotter - A Warp Trotter carrying a door card appears!
• The card in this level will be on the trotter but it's likely that if you defeat another elite enemy you get another door card for it.
• Focus on defeating the trotter. Once you have the door card, you can continue to defeat the elite enemy within to get more items or you can head to the next floor immediately!
7
Level Details: Subsurface Encounter - You might encounter other Treasure Hunters in this level.
• Aim to get to the Trotter of Abundance and defeat it.
• After that, you can recruit your character and invite the trial character within the area!
8
Level Details: Siege Breaker - After defeating all enemies, you can activate the teleporter.
• If you happen to have saved bombs from the other stages, use them on the normal buffing enemies.
• Go to the trotter enemy and defeat it.
• Head for the Elite Enemy with a buffing ability and beat it to open the teleporter!

How to Reach Deep Exploration Level 6

Level Ruin 4 Deep Exploration Day 4
1
Level Details: Relic Trotter - A Sequence Trotter carrying an ancient relic appears!
• Defeat the Surprise Attack enemy first.
• Then, defeat the Support enemy.
• You can get the Trial Character before attacking the Sequence Trotter.
• Fight the Sequence Trotter to obtain an Ancient Relic to aid you in the next stage.
• Pick up the Door Card that is most likely located at the corners of the stage.
2
Level Details: Relic Trotter - A Sequence Trotter carrying an ancient relic appears!
• Defeat the Support enemy first to weaken the enemies surrounding it. Don't use your Ancient Relic during this fight.
• Defeat the Growth enemy and use the Ancient Relic to make the fight easier. Don't forget to clear the objective to earn a reward.
• Fight the Sequence Trotter to get an Ancient Relic.
• The Door Card is likely located at the center.
• Get the Ancient Equipment scattered around the stage before moving on to the next stage.
3
Level Details: Supply Trotter - A Trotter of Abundance carrying supplies appears!
• Use the Ancient Bombs to destroy the Support enemies before attacking the Trotter.
• Defeat the Trotter of Abundance to get some supplies. You can use the Ancient Relic you have during this fight.
• Get the Door Card that is likely located at the corners of the stage.
4
Level Details: Card Trotter - A Warp Trotter carrying a door card appears!
• Defeat the Surprise Attack enemy first. You can use an Ancient Bomb if you want.
• Then, defeat the Warp Trotter immediately as it will escape with the Door Card.
• Get the Trial Character.
• Explore the squares around the Garrison enemy to weaken it further and defeat it.
• Pick up the loot scattered around the stage before proceeding to the next stage.
5
Level Details: Trotter Party - Multiple types of Trotters appear!
• Defeat the two Trotters to earn rewards.
• The Door Card is most likely located at the bottom right corner of the stage.
• Search the rest of the stage for loot to prepare for the last stage.
6
Level Details: Razor's Edge - After defeating all enemies, you can activate the teleporter.
• Use an Ancient Bomb to defeat the Support enemy.
• Pick up the Trial Character.
• Fight the Sequence Trotter to get an Ancient Relic.
• Finally, defeat the last Support enemy to clear the Deep Exploration stage.

Ruin 4 Stage Details

Day 4 Trial Character Builds

Character Trial Character Builds
Blade Blade Light Cone:

Cavern Relics & Planar Ornaments:
Luocha Luocha Light Cone:

Cavern Relics & Planar Ornaments:

Day 4 Enemies and Weaknesses

Weaknesses Elite Enemies
QuantumPhysicalWind
WindLightningFire
Weaknesses Other Possible Enemies
LightningIceFire
Elite Enemy Only Found in the Ruins
ImaginaryLightningIce
Elite Enemy Only Found in the Ruins
ImaginaryPhysicalWind
Elite Enemy Only Found in the Ruins
QuantumPhysicalIce
Elite Enemy Only Found in the Ruins
ImaginaryWindLightning
PhysicalLightning
WindLightning
ImaginaryFire
QuantumIceFire
QuantumPhysicalFire
ImaginaryWindIce
QuantumPhysicalLightning
WindFire
PhysicalIce
QuantumWind
PhysicalIce
ImaginaryPhysicalIce
ImaginaryQuantumPhysical
Honkai Star Rail - Warp Trotter Warp Trotter (Sequence)
QuantumPhysicalLightning
QuantumWindIce
ImaginaryIceFire

Underground Travelogue Part 4 Mission Guide

Day 4 Mission Walkthrough

Quest Walkthrough
1 Talk to Aksay to enter the ruins.
2 Complete ruin 4 in the Underground Treasure Hunt.
3 Talk to Aksay again to complete the mission!

Ruin 4 Rewards

All Day 4 Objective and Rewards

Objectives Rewards
Complete Surface Exploration level 4 for ruin 4.
Complete Surface Exploration level 8 for ruin 4.
Complete Deep Exploration level 2 for ruin 4.
Complete Deep Exploration level 4 for ruin 4.
Star Rail - Credit Item Credit x60,000
Complete Deep Exploration level 6 for ruin 4.
Star Rail - Credit Item Credit x60,000
Complete Travelogue Part 4 Mission
Star Rail - Credit Item Credit x10,000

Ruin 4 Event Information

Part of the Underground Treasure Hunt Event

Honkai Star Rail - Underground Treasure Hunt
Event Duration August 09, 2023 - August 28, 2023

Ruin 4 is the fourth part of the Underground Treasure Hunt Event. The main stat for Day 4's stage is _,

Underground Treasure Hunt Event Guide

Honkai: Star Rail Related Guides

Honkai Star Rail - Underground Treasure Hunt Event

Underground Treasure Hunt Event Guide

Underground Treasure Hunt Day Guides

Stage Trial Characters
Honkai Star Rail - Underground Treasure Hunt Ruin 1Ruin 1
Honkai Star Rail - Underground Treasure Hunt Ruin 2Ruin 2
Honkai Star Rail - Underground Treasure Hunt Ruin 3Ruin 3
Honkai Star Rail - Underground Treasure Hunt Ruin 4Ruin 4
Honkai Star Rail - Underground Treasure Hunt Ruin 5Ruin 5

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