1 Year of Zero Day Arena!

Zero Day Arena
Zero Day Arena
1
YearAnniversary
1 Year of Zero Day Arena

One Year of Pwning,Still Unstoppable.

From a bold idea to India's most trusted CTF platform — 2,800+ players, 50+ events, and countless flags later, we're just getting started.

Trusted by 500+ cybersecurity professionals

zero-day-arena — challenges
CryptoDynamic
HARD

The Unwritten Legacy

Decode the hidden cipher embedded within a historical document archive...

750 pts
ReverseDynamic
HARD

VM Madness

Analyze a custom bytecode VM to extract the flag hidden in its execution flow...

750 pts
HOT
ForensicsStandard
HARD

The Final Message

Recover fragments of a deleted communication from a disk image and network capture...

570 pts
$submit --flag flag{s3curity_m4st3r}Correct!

Partnered with Leading Institutions

IIT KANPUR
IIT ROORKEE
SKIT
MAIT
NFSU
HEX HUNT
PHANTOM FLAGS
SECURE WITH TECHIES
  • Web Exploits
  • Cryptography
  • Reverse Engineering
  • Forensics
  • OSINT
  • Binary Exploitation
  • Network Security
  • Steganography
  • Malware Analysis
  • Cloud Security
  • Web Exploits
  • Cryptography
  • Reverse Engineering
  • Forensics
  • OSINT
  • Binary Exploitation
  • Network Security
  • Steganography
  • Malware Analysis
  • Cloud Security
Our Journey

365 Days of Building, Learning & Growing

From a simple idea to India's most trusted CTF platform — here's how the first year unfolded.

01Feb 2025

Zero Day Arena Launched

Platform went live with core CTF hosting, dynamic scoring, and real-time leaderboard.

02Mar 2025

First 500 Players

Crossed 500 registered players within the first month. HEX HUNT v3 onsite event with 60+ teams.

03Apr 2025

IIT Partnerships

Partnered with IIT Kanpur & IIT Roorkee for collaborative CTF events and workshops.

04Jun 2025

Anti-Cheat Engine v2

Launched Investigation Center with IP overlap graphs, suspicion scoring, and automated flag-sharing detection.

05Aug 2025

1,000+ Players Milestone

Hit 1,000+ registered players. Introduced 130+ custom themes and profile card generator.

06Oct 2025

Store & VPN Blocking

Launched the merchandise store. Added VPN/Proxy blocking for onsite event integrity.

07Dec 2025

2,500+ Players

Community grew to 2,500+ players. 40+ events completed across 12 partner institutions.

08Feb 2026

1st Anniversary

Celebrating 1 year with 2,800+ players, 350+ challenges, 50+ events, and counting.

Platform Metrics

Our Impact So Far

Every number tells a story of trust, effort, and community.

0+
Registered Players
0+
Challenges Created
0+
Events Completed
0+
College Partners
0
Days of Uptime
0+
Flags Submitted
How It Works

From Setup to Scoreboard in Minutes

Our streamlined workflow takes you from challenge creation to winner declaration — no complex setup, no DevOps headaches.

01

Upload Your Challenges

Add challenges via our dashboard or import them in bulk. Set categories, difficulty, points, and flags — it takes under 5 minutes.

  • ✓ bulk_import_csv
  • ✓ dynamic_scoring_engine

Title

Category

Points

Drop challenge files here
#1
#2
#3
02

Participants Join & Play

Share a link — participants register, form teams, and start solving. Everything syncs in real-time across all devices.

  • ✓ instant_team_sync
  • ✓ role_based_access
03

Track Progress Live

Watch rankings update the moment a flag is submitted. The scoreboard is instant — no page refresh needed.

Top Teams Live
Team Alpha2450
Null Pointers1890
Root Access1200
Champions
Team Alpha
04

Wrap Up & Share Results

Generate winner reports, export analytics, and let participants download their profile cards to share on social media.

Core Features

What Sets Us Apart

Features you won't find on any other CTF platform — built from real organizer feedback.

Unique

130+ Custom Themes

Let participants pick their vibe — terminal green, cyberpunk purple, or neon blue. Each theme changes the entire UI through CSS variables.

Anti-Cheat

Investigation Center

Catch cheaters with IP overlap graphs, suspicion scoring out of 100, and automated flag-sharing detection between teams.

Real-Time

Live Geo-Tracking

See where your participants are connecting from on a live map. Useful for verifying onsite attendance and blocking remote access.

Social

Profile Card Generator

Participants can generate shareable profile cards in 1:1, 9:16, or portrait format with their stats, rank, and event details.

Fair Play

Dynamic Scoring

Points automatically decrease as more teams solve a challenge. Keeps competition fair without manual intervention.

Security

VPN & Proxy Blocking

For onsite events, block VPN and proxy connections to ensure participants are physically present. Whitelist specific IP ranges.

Analytics

Player Skill Radar

Visualize player performance across 6 metrics: Accuracy, Speed, Team Play, Points, Attempts, and Consistency.

Live

Real-Time Alerts

Toast notifications, full-screen announcements, and sound effects for first bloods, hints, and admin broadcasts.

Protection

Anti-Brute Force

Temporarily locks a challenge for a team after too many wrong attempts. Configurable cooldown and attempt limits.

Admin Experience

Your Admin Dashboard

Manage challenges, monitor teams, and control your entire event from one place.

Admin Dashboard Preview
Testimonials

What Organizers Say About Us

Hear from event organizers and participants who've been part of the Zero Day Arena journey.

"Zero Day Arena completely transformed how I practice and compete. The real-time leaderboard keeps the adrenaline pumping."

Arjun Sharma
Security Researcher

"The variety of challenges and the team management features make this the best CTF platform I've used."

Priya Nair
Penetration Tester

"Our team has grown significantly since we started competing on Zero Day Arena. The platform is rock solid."

Rahul Verma
CTF Team Captain

Plans that fit every event

Whether it's a college workshop or a national-level CTF — we've got you covered.

Limited Time Offer

Ready to Test Your Skills?

Join thousands of cybersecurity professionals pushing their limits and advancing their careers.