On July 9, 2025, PUBG MOBILE launched Chapter 27 of its popular Metro Royale mode — “Crystal Outbreak”. A mysterious crystal has crashed into the Zombie Uprising map, triggering a sweeping Crystal Erosion Energy Storm that has transformed the battlefield. This chapter introduces crystallized monsters, an energy-based progression system, dual bosses, a boss incubation mechanic, legendary loot, and an intense risk-reward dynamic. Get ready for the most dangerous and rewarding extraction experience in Metro Royale history.
▍Crystalized Monsters
The energy storm has mutated ordinary zombies into three ranks of crystallized monsters. The closer you get to the storm’s core, the stronger and more aggressive these creatures become.
Defeating these monsters drops Energy Crystals, which serve as the core progression mechanic for Chapter 27:
· Boost your damage output and reduce incoming damage.
· Crystals share their power with teammates, enhancing your entire squad.
· They also help with leveling up mid-match, empowering both survival and combat capabilities.
▍Dual Boss System
Two brand-new bosses have entered the battlefield, each offering unique challenges:
Shielded Sickle Wielder (Outer Zone):
· Armed with a shield and sickle, this boss charges at high speed.
· Shield rams knock you back and disrupt your movement.
· Break its shield to temporarily stun it.
· Once stunned, you can freely attack from all sides — a crucial opportunity to defeat it.
Crystal Reactor Guardian (Core Building, Radiation Zone):
· Located on the main rooftop at the storm’s epicenter.
· Uses mixed ranged and melee attacks.
· When HP drops below 50%, nearby energy tanks activate to heal it and reduce damage taken.
· To defeat it, you must find cover, fend off attacks, and focus fire on the energy tanks to cut off its healing.
▍Genetic Code & Boss Incubation System
Defeating a boss grants a Genetic Code, which can be used to incubate a new boss inside a specialized chamber.
· The higher the code’s quality, the more powerful the incubated boss.
· Elite bosses provide tougher fights but better loot.
At night, Incubation Airdrops may descend — destroy them to collect high-tier supplies, but be warned: you might awaken a hidden monster.
Additionally, random boss spawns can now occur across all Metro Royale maps — not just Zombie Uprising — meaning no one is ever truly safe.
▍New Exploration Mechanics
To enrich the tactical depth, Chapter 27 includes numerous interactive features and new systems:
Portable Experiment Server:
· Decrypt successfully to receive rare loot.
· Fail, and you'll trigger a zombie horde alert — prepare for immediate combat.
Traveling Merchant:
· Trade regular sellables for high-value items or consumables.
· Adds flexibility and strategic choice to mid-match progression.
Password-Locked Rooms:
· Hidden behind locked doors across the map.
· Discovering the correct password grants access to valuable hidden loot.
Fabled Sellables Introduced:
· Includes the Portable Microscope and Portable Centrifuge.
· These rare, ultra-valuable items cannot be placed in the lockbox, meaning players must extract manually to keep them.
· The decision to carry them introduces a new layer of high-risk strategy.
▍Legendary Melee Weapon
This chapter introduces a new legendary melee weapon — Thunderclap Adjudicator:
· Extremely effective against zombies and crystallized monsters.
· Grants a massive movement speed buff to its wielder.
· Most notably: it persists across seasons — even if you fail to extract, you won’t lose it.
· Obtained by defeating crystallized monsters or killing the special boss in Zin-Deph.
▍Collection Cabinet
Chapter 27 also expands the Collectibles System:
· New collectibles from the Crystal Outbreak theme can be stored in your Collection Cabinet.
· Acquiring Fabled Collectibles grants powerful temporary stat bonuses, which remain active until the end of the following season.
· Players may also obtain Lucky Packets — giftable in the Metro Royale channel — and share valuable rewards with friends.
▍Season Duration & Participation Details
· Event Period: July 9 to September 2, 2025
· Map Availability: Zombie Uprising and selected Metro Royale maps
· Pro Tips:
· Build a consistent squad to maximize energy sharing.
· Coordinate to locate bosses, incubation zones, and traders.
· Evaluate whether ultra-rare loot is worth extracting with — or better left for a safer match.
▍Conclusion
Metro Royale Chapter 27: Crystal Outbreak pushes players to the limit with its dangerous terrain, mutated monsters, and tactical decision-making. With permanent gear, shareable buffs, high-value loot, and ever-present threats, every match becomes a story of survival and risk.
Will you brave the crystal storm and escape with legendary rewards — or be consumed by the outbreak?
Join the mission. Embrace the chaos. Fight for glory.
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