Protocol 4: Code Breaker PvP
Hacker Game: Codebreaker Duels
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Standoff duels: set a code for your rival and crack theirs before they crack yours. Then raid their vault and claim territory for your syndicate.
Crack the code before your rival does.
Protocol 4 is a hacker game of pure deduction. Every guess gives you signal readings; you break the passcode with logic, not luck. Play solo, take on the Daily Operation, or duel another operator in real time.
REAL-TIME PvP DUELS
Race: one passcode, two operators. First one through wins.
Standoff: each of you sets the code the other must break. Two codes, one clock, and you watch them close in on yours.
Outsmart your rival and claim the reward.
DAILY OPERATION
A new code every day, the same for everyone. Crack it, climb the daily leaderboard and earn double XP.
BUILD YOUR EMPIRE
Assemble mining rigs, expand your vault, and run overclocks. Your network keeps earning credits while you are away.
SYNDICATES AND TERRITORY
Join one of three syndicates, claim territory on the map, and take your share of the pot that every raid feeds.
RAIDS
Break into a rival operator's grid and take what they left unguarded, then set your own defenses before they come for you.
GLOBAL LEADERBOARD
Earn XP and climb fifteen ranks to become the ultimate Server King.
MORE WAYS TO PLAY
Quick Hacks for fast action, Training to sharpen your deduction, and 18 career contracts plus fresh daily missions.
ARSENAL OF TOOLS
Oracle Scan, Double XP and more hacking tools to gain the upper hand when a code will not give.
Play in English, Turkish, Spanish, French, German or Portuguese, on iPhone and iPad.
Are you ready to initiate Protocol 4?
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
A refreshed App Store page. The game itself is unchanged: Standoff duels, raids and syndicates are right where you left them. See you in the duel lobby, operator.
The developer, HAKAN OZGER, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Purchases
- Identifiers
- Usage Data
- Diagnostics
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- User Content
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- HAKAN OZGER
- Size
- 12.8 MB
- Category
- Puzzle
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 5 more
- English, French, German, Portuguese, Spanish, Turkish
- Age Rating
4+
- 4+
- Infrequent
Contests
Contains
Advertising
User-Generated Content
- In-App Purchases
Yes
- Agent License $4.99
- TRUST FUND $6.99
- PRIORITY PASS · THIS WEEK $2.99
- VAULT EXPANDER $9.99
- OFFSHORE ACCOUNT $13.99
- INSTANT HARVEST $1.49
- HACKER'S STASH $3.99
- OVERCLOCK 24H $1.99
- POCKET CHANGE $0.99
- Master Kit $5.99
- Copyright
- © 2026 Hakan Özger

