Doomsday Skyline Trivandrum
[ SYSTEM STATUS ]
[ THREAT LEVEL: CRITICAL ]
[ NODE: TRIVANDRUM ]
[ OFFENSO TRIVANDRUM PRESENTS ]

DOOMSDAY-CTF

THE WORLD IS DOWN.
YOUR SYSTEM IS NEXT.

An offline cybersecurity Capture The Flag experience where exploitation, investigation and problem-solving determine who survives the final breach.

01-October-2026 (Offline Event)
Trivandrum, Kerala (Venue: OFFENSO TVM)
ENTER THE CTF MISSION BRIEF
SCROLL DOWN
DOOMSDAY PROTOCOL
14
DAYS
08
HOURS
31
MINUTES
42
SECONDS
PARTICIPANTS ·············· 180
NODES COMPROMISED ······· 047
SYSTEM STATUS ············· CRITICAL
TRIVANDRUM
// THE MISSION

THE COLLAPSE HAS BEGUN.

Something has breached the network. Critical systems are falling. Information is disappearing and the remaining infrastructure is being attacked from within.

Your team has one mission: identify the weaknesses, exploit the systems, uncover what happened and recover before the final shutdown.

LEARN MORE
Hacker Operator Terminal

RECON

Find the weakness.

>_

EXPLOIT

Break the system.

SURVIVE

Capture the flag.

// CHALLENGE TRACKS

CHOOSE YOUR BATTLEFIELD

WEB

Web vulnerabilities, authentication bypasses, injection and hidden endpoints.

Sample Challenges:
  • 404: Reality Not Found
  • Broken Gate
  • The Last Login
  • Ghost Endpoint

CRYPTO

Decryption, encoding and cryptographic weaknesses.

Sample Challenges:
  • Dead Drop
  • Cipherfall
  • The Final Key

FORENSICS

Recover the evidence before it disappears.

Sample Challenges:
  • Black Box
  • Lost Packet
  • Digital Ashes

OSINT

Find the truth buried in the open.

Sample Challenges:
  • Who Was Here?
  • Vanished Identity
  • Signal Lost

PWN

Exploit vulnerable binaries and systems.

Sample Challenges:
  • Core Dump
  • Root of All Evil
  • System Failure

MISC

Unexpected problems for unconventional thinkers.

Sample Challenges:
  • DOOM.EXE
  • Unknown Protocol
  • End of Line
// DIFFICULTY

THREAT LEVEL

01
STABLE
02
COMPROMISED
03
CRITICAL
04
CATASTROPHIC
05
EXTINCTION
// SCHEDULE

EVENT TIMELINE

08:30 Gates Open
09:00 Check-in
09:30 Mission Briefing
10:00 Systems Live
13:00 Lunch / Network Reset
14:00 Final Breach
16:30 System Lockdown
17:00 Flags Verified
17:30 Awards
// RULES & SCORING

PLAY FAIR. BREAK SYSTEMS. NOT THE EVENT.

SCORING FLOW
Challenge
Value
Solve
Submit
Flag
Validation
Score
KEY RULES
  • Individual or team participation (max 4 per team)
  • Flags must be submitted through the official platform
  • No attacking infrastructure outside designated CTF targets
  • No denial-of-service against event infrastructure
  • No disruption of other teams
  • Organizers' decisions regarding scoring are final
  • Tie breaking based on submission time
// REGISTRATION

READY TO ENTER?

THE CLOCK IS ALREADY RUNNING.

REGISTER YOUR TEAM
Team Size 1 - 4 members
Registration Fee Free per team
Eligibility Students & Professionals
Laptop Required Yes (with required tools)
Registration closes OCT - 1
// ONSITE CHECK-IN

BEFORE YOU ARRIVE

Laptop
Charger
Team ID / Registration confirmation
Required software
Valid identification
Backup hotspot
CHECK-IN FLOW
ARRIVE
VERIFY
GUIDE
BRIEFING
ENTER
// VENUE & MAP

TRIVANDRUM

KERALA, INDIA
(Venue details will be shared soon)
GET DIRECTIONS
Trivandrum Satellite HUD Map
// FAQ

FREQUENTLY ASKED QUESTIONS

The event is open to students, security enthusiasts, and working professionals with an interest in cybersecurity, penetration testing, and digital forensics. Both beginners and experienced CTF players are welcome.

Bring your laptop, power adapter/charger, valid student/government ID, registration confirmation email, and your preferred CTF tools (Kali Linux / WSL / VMs pre-installed). A backup mobile hotspot is highly recommended.

Yes! We have designed challenges spanning multiple difficulty tiers, starting from STABLE (Tier 01) up to EXTINCTION (Tier 05). Even if this is your first CTF, there will be approachable web, crypto, and forensics tasks.

Challenges award points upon submitting valid flags. We utilize dynamic scoring where points adjust according to the number of solves. In case of ties, the team with the earliest submission time ranks higher.

No prior CTF experience is strictly required, though familiarity with basic Linux commands, web technologies, and security concepts will be helpful. Team collaboration is encouraged!

Onsite Wi-Fi and designated local CTF network infrastructure will be provided. However, we advise all teams to carry a backup mobile 4G/5G personal hotspot for uninterrupted connectivity.

Late check-in is permitted until 10:30 AM, but missing the mission briefing at 09:30 AM will put your team at a tactical disadvantage. Please try to arrive before 09:00 AM.

No, on-spot registrations are not accepted. All teams must register online prior to the official deadline of November 15, 2025.