Quick Answer
Use the current events page for active event status, the current banner guide for gacha evaluation, and this page when the specific question is how to farm the event efficiently.
Event at a Glance
Content type
Route-selection dungeon event
Event period
June 9, 2026 ~ July 21, 2026 (Tue) 11:59 JST
Main quest
Mechanical Ruins (30-floor dungeon)
Strong enemy
Bamboo Soldier (machine family, ice super weakness)
Key currency
Amulet stones (exchange shop), Skill medals (skill upgrades)
Always confirm
Live event screen, exchange deadline, and challenge conditions
Unlock and Access
The event becomes available from the event menu. To unlock the core content:
- Clear event story chapter 1 (Normal) to unlock Mechanical Ruins and Bamboo Soldier.
- Enter Mechanical Ruins to farm amulet stones and skill medals.
- Use skill medals to unlock and upgrade event adventure skills.
- Exchange amulet stones for rewards at the event exchange shop.
A multiplayer quest “Machine Monster Army” is scheduled to open from June 16, 2026. Check the in-game notice for exact availability.
Event Route: Mechanical Ruins
Mechanical Ruins is a 30-floor route-selection dungeon. At each branch, you choose a route type that determines what you encounter next.
Difficulty Levels
| Difficulty | Recommended Level | Notes |
|---|---|---|
| Hard | Lv. 30 | Standard farming difficulty |
| Very Hard | Lv. 40 | Higher drop rates |
| Challenge | Lv. 50 | Special gauge charge -50% |
Route Types
| Route | What happens |
|---|---|
| Random | Random outcome |
| Treasure | Material drops |
| Heal | HP recovery |
| Battle | Standard enemy fight |
| Battle (Elite) | Fight with slime statue — grants powerful skills (recommended) |
| Mid-boss | Mid-boss encounter |
| Boss | Floor 30 boss fight |
Enemy Weaknesses
Most enemies in Mechanical Ruins are weak to ice and lightning. Build your team around ice weapons first.
| Element | Effectiveness |
|---|---|
| Ice | Super weakness |
| Lightning | Weakness |
| Fire | Resist |
| Other | Neutral |
Recommended Strategy
1. Prioritize Battle (Elite) routes
Slime statues in elite battles grant powerful adventure skills. These skills are essential for reaching deeper floors efficiently. Collect attack speed up+ and damage up+ (gold frame skills) when available.
2. Build around arrow skills
Arrow-type adventure skills are the priority for this event. The recommended skill setup:
| Skill | Effect | Priority |
|---|---|---|
| Arrow Secret Tome | Arrows bounce off walls (up to 2 times) | Highest |
| Hyado Arrow | Fires 2 ice arrows that pierce surrounding enemies | Highest |
| Arrow Boost [Slaughter] | Increases arrow damage | High |
| Arrow Boost [Decelerate] | Arrows inflict slow on hit | Medium |
3. Weapon choice
| Weapon | Element | Why it fits |
|---|---|---|
| Blue Steel Machine Lance | Ice | Top pick; super weakness, machine killer, 4-gauge turret special, arrow skills |
| Ice Staff | Ice | Safe ranged alternative for comfortable clears |
| Crystal Claw | Utility | Equip on sub character to increase arrow count |
4. Avoid claw main
Claw main is not recommended for Mechanical Ruins due to ball gimmick enemies that are difficult to handle with claw attacks.
5. Event skill strengthening
Skill medals dropped in the dungeon are used to unlock and upgrade event-specific adventure skills. Strengthening these skills is essential for comfortable progression. Check the skill upgrade screen after each run.
Key Drops
| Drop | Use |
|---|---|
| Amulet stones | Exchange shop currency |
| Skill medals | Unlock/upgrade event adventure skills |
| Challenge letter for Bamboo Soldier | Collect 10 to challenge the strong enemy |
| Killer Machine memory | Ice physical damage +10%, starts with Hyado Arrow |
Bamboo Soldier Strong Enemy
Bamboo Soldier is a strong enemy match unlocked after clearing event story chapter 1. It serves as a source of cumulative point rewards, including 10 Killer Machine gacha tickets.
Profile
| Property | Value |
|---|---|
| Family | Machine |
| Super weakness | Ice |
| Resist | Fire, Light |
| Special rules | Special gauge charge +100%; Staff equipped damage -50% |
Attack Patterns
Spear Triple Thrust (槍3連突き)
The boss tracks your position with each thrust. Do not try to dodge at the last moment — the tracking is precise and you will get hit. When the red prediction line appears, create distance early and dodge with margin.
Baghi (バギ)
Fires in 6 directions simultaneously. The projectiles reflect off walls and linger on the field for a while. The hitbox is large, so focus on avoiding them rather than squeezing through gaps.
Challenge Conditions
| Condition | What to do |
|---|---|
| Clear without taking 200+ damage | Avoid all attacks or bring strong defense |
| Clear without taking 400+ damage | More forgiving than the 200-damage condition |
| Clear without deaths | Keep your character alive through the full fight |
Recommended Build
Main weapon: Blue Steel Machine Lance (ice spear, machine killer, super weakness damage, wide-range attacks)
Sub weapons: Spirit Staff or Crystal Claw
Armor priorities:
| Armor | Key effect | When to use |
|---|---|---|
| Blue Steel Machine Helm | Machine family damage +6%, ice damage +6%, physical damage +6% | Best in slot for this fight |
| Archmage Hat | Ice spell damage UP + fire resist | Strong alternative for magic builds |
| Sanctuary Headband | Machine family damage UP | Good if you lack the machine armor |
Adventure skills: Arrow build priority (Arrow Secret Tome + Hyado Arrow + Arrow Boost skills)
Main job: Warrior with Blue Steel Machine Lance for optimal damage output.
Cumulative Point Rewards
| Points | Reward |
|---|---|
| 4,000 | Killer Machine gacha ticket x2 |
| 20,000 | Gold ticket x1 |
| 40,000 | Killer Machine gacha ticket x2 |
| 60,000 | Weapon upgrade ticket x1 |
| 80,000 | Killer Machine gacha ticket x2 |
| 100,000 | Metal ticket x1 |
| 120,000 | Killer Machine gacha ticket x2 |
| 140,000 | Gold ticket x2 |
| 160,000 | Killer Machine gacha ticket x2 |
| 180,000 | Weapon upgrade ticket x2 |
| 200,000 | Metal ticket x2 |
| 240,000 | Armor upgrade ticket x2 |
| 280,000 | Gems x50 |
| 320,000 | Metal ticket x2 |
| 360,000 | Gems x300 |
| 400,000 | Metal Brothers ticket x1 |
| 450,000 | Gems x50 |
| 500,000 | Metal Brothers ticket x1 |
| 550,000 | Gems x50 |
| 600,000 | Liquid Metal ticket x1 |
| 700,000 | Gold x100,000 |
| 800,000 | Job panel medium glowstone (rainbow) x1 |
| 900,000 | Explorer upgrade chip x1 |
| 1,000,000 | Job panel medium glowstone (rainbow) x1 |
| 1,100,000 | Explorer upgrade chip x1 |
| 1,200,000 | Job panel medium glowstone (rainbow) x1 |
Bamboo Soldier Memory
Bamboo Soldier memory is a green (common) memory obtained as a reward from the strong enemy match.
| Property | Value |
|---|---|
| Rarity | Green (common) |
| Color | Green |
| HP | 54 / 25 |
| Attack | 61 / 11 |
| Magic | 47 / 13 |
| Heal | 38 / 15 |
| Defense | 30 / 25 |
| Magic Defense | 35 / 20 |
| Dexterity | 21 / 28 |
| Total | 286 / 20 |
| Main effect | Spear physical damage +5% |
Rewards
Free Gacha Tickets
You can obtain 20 Killer Machine series gacha tickets for free during this event:
| Source | Amount | How |
|---|---|---|
| Event exchange shop | 10 | Trade amulet stones |
| Bamboo Soldier cumulative points | 10 | Earn points from strong enemy matches |
New Equipment
| Equipment | Type | Key feature |
|---|---|---|
| Blue Steel Machine Lance | Weapon (spear) | Ice attribute, machine killer, 4-gauge turret special |
| Blue Steel Machine Helm | Head | Machine family damage/resistance, ice damage |
| Blue Steel Machine Armor Top | Top | Machine family damage, ice damage |
| Blue Steel Machine Armor Bottom | Bottom | Freeze resistance, ice damage |
| Accel Gear | Accessory | Event accessory — check in-game for exact stats |
New Memories
| Memory | Color | Key effect |
|---|---|---|
| Killer Machine | Blue | Ice physical damage +10%, starts with Hyado Arrow |
| Bamboo Soldier | Green | Spear physical damage +5% |
Exchange Shop
The event exchange shop uses amulet stones as currency. The exchange deadline is July 21, 2026 (Tuesday) at 11:59 JST — the same as the event end date.
Where to Get Amulet Stones
| Source | Notes |
|---|---|
| Mechanical Ruins clears | Main source from clear rewards and treasure boxes |
| Bamboo Soldier strong enemy | Higher difficulty = more stones |
| Event mission rewards | Claim from mission screen |
Exchange Shop Priority
| Priority | Items |
|---|---|
| High | Killer Machine series gacha tickets, Accel Gear accessory |
| Medium | Metal Brothers tickets, Metal tickets, job panel medium glowstones (all colors), Shrine keys, Medium stamina potions, Multiplayer tickets |
| Low | Killer Turret pose, Killer Machine effect, Tavern background, Large weapon upgrade stones, Large armor upgrade stones |
Before you spend amulet stones, open the in-game exchange shop and compare the current costs, stock limits, and deadline against your account needs.
FAQ
When does the Wandering Merchant and Lost Ruins event end?
The event runs through July 21, 2026 (Tuesday) at 11:59 JST. Exchange shop items and the Killer Machine series gacha share the same deadline. Check the in-game notice for any schedule changes.
What is the best weapon for this event?
Blue Steel Machine Lance is the top pick. It is an ice-attribute spear with machine-family killer, a 4-gauge special that leaves a field turret, and arrow-type adventure skills. It covers the super weakness for both Mechanical Ruins enemies and Bamboo Soldier. Ice Staff is a viable alternative for safe ranged combat.
How do I get all 20 free gacha tickets?
10 tickets come from the event exchange shop (trade amulet stones), and 10 tickets come from cumulative point rewards in the Bamboo Soldier strong enemy match. Check the exchange shop and strong enemy screen for current progress.
Should I pull the Killer Machine series gacha?
Blue Steel Machine Lance is a top-tier ice spear with strong event synergy, and the armor set provides machine-family damage and resistance. Pull if you need ice coverage or spear builds; skip if your weapon plan is already complete.
How do I unlock Mechanical Ruins and Bamboo Soldier?
Clear event story chapter 1 on Normal difficulty. Once unlocked, Mechanical Ruins becomes your main farming source for amulet stones and skill medals, while Bamboo Soldier becomes available as a strong enemy match.
What are the Bamboo Soldier challenge conditions?
The three mission conditions are (1) clear without taking 200+ damage, (2) clear without taking 400+ damage, and (3) clear without any deaths. Build for ice damage and practice dodging the tracking thrust and wall-reflecting Baghi attack.
What is the best route strategy for Mechanical Ruins?
Prioritize Battle (Elite) routes early to collect powerful adventure skills from slime statues. Once your skills are solid, switch to Treasure routes for more amulet stones. Avoid claw main due to ball gimmick enemies.
What should I buy first in the exchange shop?
Priority order: Killer Machine gacha tickets first, then Accel Gear accessory if it fits your build. After that, pick up Metal Brothers tickets, Metal tickets, and job panel glowstones based on your account needs. Check in-game for exact costs.
Related Reads
| Page | Use it for |
|---|---|
| Killer Machine Army Raid Guide | Raid unlock, team composition, attack patterns, and clear rewards for the multiplayer event |
| Blue Steel Machine Lance | Weapon data, ice spear build synergy, and machine killer value |
| Current Events | Confirming active event status and concurrent content |
| Current Banner Guide | Evaluating the Killer Machine series gacha against other banners |
| Exchange Shop Guide | General exchange shop strategy and farming efficiency tips |