
Survive intense combat, earn rewards, open cases, unlock rare skins, and customize your arsenal in this high-pressure survival FPS where every run matters.

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Smile Protocol is a high-pressure survival FPS where every run rewards your progress.
Fight through dangerous encounters, earn coins and keys, buy equipment, open cases, expand your collection, and build your own way to survive.
The longer you survive, the greater the rewards.
Earn keys and open cases filled with valuable rewards.
Unlock weapon skins, attachments, gloves, grenade skins, and collectible items to expand your inventory.
Every case is a chance to discover something new.
Build your own collection and customize your equipment.
Unlock and equip:
• Weapon Skins
• Weapon Attachments
• Gloves
• Grenade Skins
• Cosmetic Items
Create a loadout that feels unique to you.
Every unlocked item is permanently added to your collection.
Push deeper into the facility by unlocking new sectors and surviving the threats waiting behind every door.
Explore dangerous areas, manage your resources, and fight your way forward.
Survive a fixed number of increasingly difficult waves.
Each completed wave rewards you with keys and resources.
The further you go, the greater the reward.
Activate the hostage event and defend your position.
Enemies grow stronger and more numerous over time.
The longer you survive, the bigger the reward.
Stay longer for greater rewards or extract at any time and secure your earnings before the pressure becomes overwhelming.
There is no final wave.
Only survival.
Every match rewards you with coins.
Visit the Trader and convert your coins into keys to open even more cases and grow your collection faster.
Play. Earn. Trade. Unlock.
Spend your earned coins to prepare for the next run.
Purchase:
• Weapons
• Ammunition
• Armor
• Health Supplies
• Grenades
• Equipment
Choose your loadout carefully before entering the facility.
The right equipment can mean the difference between survival and death.
Customize who you fight before every run.
Face different enemy types including:
• Humanoids
• Aliens
• Skeletons
Each run can feel different depending on the enemies you choose.
Claim free rewards simply by playing.
Collect additional coins and keys over time to help expand your collection and open more cases.
Keep playing and come back regularly to maximize your rewards.
Create your own challenge.
Customize:
• Manual or Automatic Reload
• Enemy Count
• Enemy Speed
• Enemy Type
• Headshot Only Mode
Harder settings increase your Reward Multiplier, allowing you to earn more coins and keys.
The greater the risk, the greater the reward.
Fight.
Survive.
Earn rewards.
Buy equipment.
Open cases.
Grow your collection.
Return stronger.
Every run matters.