HP Supplement

HP Supplement is a special item in Counter-Strike Online.

Overview[]

This item is only available after Zombie Scenario Re:boot.

A combat assistance product developed by Dr.A. This will help your HP to take attack from zombies in the battle. By possessing this item in your inventory, your health will upgrade to a certain level varying on the grade of the item.

Acquisition[]

HP Supplements can be obtained randomly by opening Dr. A's Trunk after Zombie Scenario Re:boot. The grades of HP Supplements acquired vary on the grade of Dr. A's Trunk. For instance, opening Low Grade Dr. A's Trunk will give you a Low Grade HP Supplement.

Grades[]

Item	Grade	Effect
	Inferior	Health will upgrade to stage 3 in zombie scenario mode
	Intermediate	Health will upgrade to stage 5 in zombie scenario mode
	Superior	Health will upgrade to stage 7 in zombie scenario mode

Trivia[]

This item replaces the Stamina Drug which was removed after Zombie Scenario Re:boot.

Items

Lobby

Reward Preview • Special Mission Reset • Promotion reward ( KR • TW/HK • CHN • IDN • CSN:Z • VN ) • Channel Chat • Experience Coupon • Game Points Coupon • Battlefield Supply • Ignore Defeat • Ignore Penalty • Ignore Defeat + Penalty • Joker Character • Craft Item Duffel Bag • Duration Extender • Experience Up • Point Up • Double Up • Mileage Duffel Bag • Mileage Lottery Ticket • Weapon Lottery Ticket • Bingo Ticket • Premium Moderator

Boxes

C-Box ( KR • TW/HK • CHN • JPN • SG/MY • IDN • TL • TR • CSN:Z • VN ) • Z-Box • Military • Treasure • Darkness • Xmas • Jackpot • S-Box • B-Box • J-Box • M-Box • Random • Life Weapon ( Transcendent ) • Mileage • Rare ( Halloween ) • Buff ( Class ) • Summer • Part Weapon Special • Part Item • Transcendent Chest • 10th Anniversary • CSOGS • Epic • Siege • Mileage • Challenge • Settlement Support • Part Weapon Selection • FLEX • ENH • Old-Time • Z Starter • Rare Selection • Class Selection • ENH Selection • Costume Selection • Unique Selection • Transcendence Selection • Upgrade • Xmas • Gold • Mystery • Costume Selection • Desert • All-In-One • Epic Selection • Refined • Classic • 2023 • Paint • Hopeful Chest • Special Buff • 2024 Event • Blank • Series

Decoder

Classic • Advanced (A • B) Mileage (Crate) • Premium • Buff (A • B• C) • Package • Brand • Top 50 • Epic • Top Class • Rare • Unique • Class • Event • Drakar • Paint • Trace • Plus • All-In-One

Event

Advance Unit's Supply Box • Reversed Map • Soccer Ball • Heart Bomb • Pumpkin Grenade • New Year Box • Silver Bell • Golden Bell • Mystery Gift • Seed • Sprout • Fruit (Harvested) • Fortune bag • Timed Bomb • Fortune Cookie • Lucky Coin • Ice Breaking • Soy's SD Zombie Maker • Baseball • Reservation Ticket • Discount Coupon • Level Up Coupon • Transcendence Piece • Gold Moon Cake • Gunsmith Toolbox • Drakar Coin • Epic Decoder Supply Ticket

Supply Box • Point Up • Double Up • EXP Up • All Set • Floating Damage • Damage Meter

In-game

Battle Revival • Emergency Medicine • Round Retry

Clues

Set 1	Operational Map • Damaged Equipment • Andrey's Diary • Phobos' DNA

Set 2	Siege Type's Blood • Siege Type's Frame • Siege Type's DNA

Set 3	Dione Pursuit Diary ( No.1 • No.2 • No.3 • No.4 )

Set 4	Confidential Weapons Document ( No.1 • No.2 • No.3 • No.4 )

Set 5	Frozen Terror's Mane • Gluttony's Tongue

Reboot	Confidential Documents • Secret Map • Research Tools • Zombie Sample • HP Supplement • Attack Amplifier • Bulletproof Armor • Combat Boots • Spare Magazine • Weakness Analysis Device • Level Up Amplifier

Dr. A

Stamina Drug • Power Amplifier • Money Extractor • Secret Research Funds

Others

Nightmare key • Poisoning key • Illusion key • Madness key • Melee Weapons License • Origin Weapons License • SD Zombie • Weakness Analyzer (Season 1 • Season 2 • Season 3) • Dr. A's Trunk (1 • 2 • 3)

Reboot II

Venom Guard Damage Down • Zombie Grenade Damage Down

Sentry Gun • Comanche Record Device • Pilot Tag • Drone Control Chip • EXP Medals

Craft

Durability Material • Weapon Recipe • Combat Blueprint ( CSN:Z • Vietnam • Indonesia ) • Lucky Craftsman • Recycle • Recipe Exchange coupon • Perfect Pick Recipe

Cosmetic

Wings	Protector • Black Dragon • Repulsor • Soul • Radiance • Frost • Wolf

Others	Tattoo • Santa hat • Costumes (Box) • Paint • Nameplate • Zombie Respawn FX