Construction Ruins is the third accessible zone in Hollow Zero. Learn how to unlock Construction Ruins, details for each stage, the best characters, and all its rewards!
List of Contents
- How to Unlock
- Stage Info
- Frontline
- Interior
- Heartland
- Core
- Recommended Resonia
- Rewards
- Related Guides
How to Unlock Construction Ruins
Finish Chapter 2, Old Capital Metro Edge, and Street Lost to Memory
See Also
Samsung Galaxy Z Fold6 and Z Flip6: Singapore pricing, deals, and accessories guideSamsung Galaxy Z Fold 6 vs Galaxy S24 Ultra: Comparing the premium handsetsThe best Samsung Galaxy Z Fold 6 cases you can buy at launchHow to Get and Use Z-Merits | Zenless Zone Zero (ZZZ)｜Game8You can only unlock Construction Ruins after finishing Chapter 2, clearing Old Capital Metro: Edge, and completing Street Lost to Memory commission.
Talk to Ray at Scott Outpost after doing all of those to officially unlock the Construction Ruins
Construction Ruins Stage Info
| Construction Ruins Stages | |
|---|---|
| Frontline | Interior |
| Heartland | Core |
Frontline Details and Walkthrough
Stage Info
| Rec. Level | Level 30 |
|---|---|
| Best Elements |
|
| Elements to Avoid |
|
Best Characters
| Attack | Anton |
|---|---|
| Stun | Anby |
| Support | Nicole Rina |
| Anomaly | Grace |
Tier List and Best Characters
Enemies
| Floor | Featured Enemies |
|---|---|
| #1 | Autonomous Support Unit - Guardian MK II |
| #2 | Unknown Corruption Complex |
List of All Enemies
Floor 1 Walkthrough
| # | Floor 1 Walkthrough |
|---|---|
| 1 |  You will start the stage with a [Research] Resource Conversion and a random set of Resonium right off the bat. The Research Resonium will increase your damage by a certain percent for each 100 Gear Coins you spend. |
| 2a |  After getting the free rewards, you will meet The Opportunist. He will let you borrow Gear Coins that you will have pay later before fighting the final boss. You have the choice to ignore and reject his offer. |
| 2b | Borrowing Gear Coins from The Opportunist comes with positive and negative effect. You will get back some Gear Coins for buying on the shop and receive a free Resonium. If you're unable to pay that amount, you will lose a number of Resonium depending on your current debt. |
| 3 |  Follow the linear path to the right until you defeat the enemy at the end. You will receive Gear Coins, an Artifice Resonium (optional) and a character along the way. |
| 4 |  The next area will have 3 paths you can take to reach the exit. However, moving around the tile will make a path become inaccessible. |
| If you move a step to the right, the column you where standing before will be removed. If you move up or down, the previous row that you were standing on before will disappear. | |
| 5 |  Fight the Guardian MK II at the exit to proceed to the next floor. |
Floor 2 Walkthrough
| # | Floor 2 Walkthrough |
|---|---|
| 1 |  You will be blocked by The Opportunist at the start of Floor 2. You can borrow more Gear Coins, get additional resources, or ignore all his offers. |
| 2 |  Collect all the rewards after talking to The Opportunist before proceeding to the last area using the transmission tile. Make sure to also claim the rewards on the right if you finish the first floor with an S grade. |
| 3a |  There will be three paths to choose from in the last area that similar to the disappearing tiles area in the first floor. After getting to the end, a similar area will spawn, but with five paths this time. |
| 3b |  You will meet The Opportunist again before reaching the exit. You will have to pay him your debt or he would take several Resonium from you. |
| 4 |  Defeat the Unknown Corruption Complex at the exit to complete the stage. |
Interior Details and Walkthrough
Stage Info
| Rec. Level | Level 35-40 |
|---|---|
| Best Elements |
|
| Elements to Avoid |
|
Best Characters
| Attack | Anton Zhu Yuan |
|---|---|
| Stun | Anby |
| Support | Nicole Rina |
| Anomaly | Grace |
Tier List and Best Characters
Enemies
| Floor | Featured Enemies |
|---|---|
| #1 | Autonomous Support Unit - Guardian MK II |
| #2 | Greta - Overclocked |
| #3 | Unknown Corruption Complex |
List of All Enemies
Floor 1 Walkthrough
| # | Floor 1 Walkthrough |
|---|---|
| 1 |  You will get a [Research] Resource Conversion before starting the stage. It will increase your party's damage for every 100 Gear Coins you spent. You can also choose from a random set of Resonium after that. |
| 2a |  The Opportunist will appear after getting your free Resonium, offering loaning services. You can borrow Gear Coins for him or ignore his offer entirely. |
| 2b | Borrowing Gear Coins will increase your spending power at the early part of the stage. Just remember to pay it off at Floor 3 before the final exit or you will lose several Resonium. |
| 3a |  You will spawn after the event in an area with a three-row path. The tile rows or columns will disappear depending on how you move around. |
| 3b | Moving up or down will destroy the row opposite to your direction. Moving to the right will destroy the column on the left. This means you won't be able to go back once you've picked a direction, so path your way wisely! |
| 4 |  Move around the area until you reach the Shop at the end. Spend some Gear Coins or just save it for the next area to get value out of the Research Resonium. |
| 5 |  The same rule will apply to this newly unlocked area. However, you won't be able to avoid fighting enemies this time. |
| 6 |  Head to the exit at the end and beat the floor bosses, which are two Guardian MK II, to proceed to the next one. |
Floor 2 Walkthrough
| # | Floor 2 Walkthrough |
|---|---|
| 1 |  Talk to The Opportunist blocking the way to get more Gear Coins or ignore his offer and pass through. He will also offer other services this time at the cost of HP or Gear Coins. |
| 2 |  Explore the area and collect all the reward tiles before proceeding to the next area. You can claim the rewards on the right if you clear the first floor with an S grade. You can also destroy breakable walls for additional rewards, if there are any. |
| 3 |  The next area will be the same with the ones on the first floor. The thing different this time is the vault, additional event tiles, and enemy at the end of the first part instead of the Shop. |
| 4 |  Move through the tiles and collect all the things you deemed necessary until you reach the floor exit. Defeat Greta - Overclocked to proceed to the final floor. |
Floor 3 Walkthrough
| # | Floor 3 Walkthrough |
|---|---|
| 1 |  The start of Floor 3 is very similar to that of Floor 2. Talk to The Opportunist and explore the area to get rewards before heading to the final area. |
| 2 |  The final area of this floor is also similar to Floor 1 and 2. The area will change depending on how you move, but you will have more options on where to go than the previous ones, as there are now five rows. |
| 3 |  The Opportunist will be waiting next to the exit. You will need to pay your debt on this part or else you will lose several Resonium. You can also spend more Gear Coins on him if you have some to spare as you won't be able to use it anymore. |
| 4 |  You will face the Unknown Corruption Complex at the exit. Defeat it to complete the stage and obtain its rewards! |
Heartland Details and Walkthrough
Stage Info
| Rec. Level | Level 40 |
|---|---|
| Best Elements |
|
| Elements to Avoid |
|
Best Characters
| Attack | Anton Zhu Yuan |
|---|---|
| Stun | Anby |
| Support | Nicole Rina |
| Anomaly | Grace |
Tier List and Best Characters
Enemies
| Floor | Featured Enemies |
|---|---|
| #1 | Greta - Overclocked |
| #2 | Hans - Overclocked |
| #3 | Unknown Corruption Complex |
List of All Enemies
Floor 1 Walkthrough
| # | Floor 1 Walkthrough |
|---|---|
| 1 |
|
| 2 |
|
| 3a |
|
| 3b |
|
| 4 |
|
Floor 2 Walkthrough
| # | Floor 2 Walkthrough |
|---|---|
| 1 |
|
| 2 |
|
| 3a |
|
| 3b |
|
| 4 |
|
Floor 3 Walkthrough
| # | Floor 3 Walkthrough |
|---|---|
| 1 |
|
| 2 |
|
| 3a |
|
| 3b |
|
| 4 |
|
Core Details
Stage Info
| Rec. Level | Level 45-50 |
|---|---|
| Best Elements |
|
| Elements to Avoid |
|
Best Characters
| Attack | Anton Zhu Yuan |
|---|---|
| Stun | Anby |
| Support | Nicole Rina |
| Anomaly | Grace |
Tier List and Best Characters
Enemies
| Floor | Featured Enemies |
|---|---|
| #1 | Autonomous Tactical Unit - Typhon Slugger Assault Gunner |
| #2 | Friday - Energized |
| #3 | Unknown Corruption Complex |
List of All Enemies
Construction Ruins Recommended Resonia
We're currently investigating this section. Check back again soon!
Construction Ruins Rewards
First Clear Rewards
Construction Ruins: Frontline
| First Clear Rewards |
|---|
| Inter-Knot Credit x600 Polychrome x80 Boopon x1 Investigation Point x1000 Withered Crystal: Ink-Yellow x400 |
Construction Ruins: Interior
| First Clear Rewards |
|---|
| Inter-Knot Credit x600 Polychrome x80 Withered Crystal: Ink-Yellow x600 Investigation Point x1500 |
Construction Ruins: Heartland
| First Clear Rewards |
|---|
| Inter-Knot Credit x600 Polychrome x80 Withered Crystal: Ink-Yellow x600 Investigation Point x1500 |
Construction Ruins: Core
| First Clear Rewards |
|---|
| Inter-Knot Credit x600 Polychrome x80 Withered Crystal: Ink-Yellow x1000 Investigation Point x1500 |
Regular Rewards
Construction Ruins: Frontline
| Regular Rewards |
|---|
| Investigation Point x1250 Bangboo Algorithm Module x9 - 10 Bangboo System Widget x3 - 4 Withered Crystal: Ink-Yellow x200 Denny x1200 |
Construction Ruins: Interior
| Regular Rewards |
|---|
| Investigation Point x2500 Bangboo System Widget x8 - 11 Withered Crystal: Ink-Yellow x300 Denny x2000 |
Construction Ruins: Heartland
| Regular Rewards |
|---|
| Investigation Point x3000 Bangboo System Widget x10 - 13 Withered Crystal: Ink-Yellow x400 Denny x2815 |
Construction Ruins: Core
| Regular Rewards |
|---|
| Investigation Point x3500 Bangboo System Widget x13 - 16 Withered Crystal: Ink-Yellow x500 Denny x3380 |
Zenless Zone Zero Related Guides
Hollow Zero Guide
List of Hollow Zero Zones
| All Hollow Zero Zones | |
|---|---|
| Qualification Assessment | Old Capital Metro |
| Construction Ruins | Abandoned Skyscraper |
List of Hollow Zero Upgrades and Mechanics
| Hollow Zero Upgrades and Mechanics | |
|---|---|
| Resonia | Corruption |
