Profile

Your progress, badges, and streak.

Your rank

Intern

Day one. The arcade is yours to explore.

0 days
streak · best 0
0 XP total · 0 areas explored
0% to Junior1,284 XP to go
Breadth · 0 / 1 areas
Earn more XP and explore more areas to reach Junior.
  1. 0 xpIntern
  2. 1,284 xpJunior
  3. 3,853 xpSenior
  4. 7,707 xpStaff
  5. 12,845 xpPrincipal
  6. 17,983 xpDistinguished
  7. 23,121 xpFellow
  8. 25,690 xpEmeritus
You're Intern · 0 / 1,284 XP
1,284 XP to Junior
Recommended next
Git Basics
~8 min

Progress over time

last 30 days

XP earned per day

0 XP · peak 0
2026-03-292026-04-27

Activity

0 / 30 active
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Area mastery

sorted by completion
  • Encoding
    0 / 5
  • Classical Ciphers
    0 / 4
  • Modern Symmetric
    0 / 5
  • Public Key
    0 / 1
  • Hashing
    0 / 5
  • Applied
    0 / 5
  • Security Practice
    0 / 2
  • AI Systems
    0 / 12
  • Foundations
    0 / 4
  • Networking
    0 / 4
  • CI/CD
    0 / 4
  • SRE
    0 / 10
  • APIs
    0 / 4
  • Git
    0 / 4
  • Databases
    0 / 5
  • Frontend
    0 / 5
  • Unix
    0 / 5
  • macOS
    0 / 6
  • IT
    0 / 14
  • Data Types
    0 / 5
  • Containers
    0 / 5
  • Web Security
    0 / 3
  • Cloud
    0 / 5
  • Languages & Runtimes
    0 / 5
  • Algorithms
    0 / 14
No solves yet — try the recommended next level above.

Activity · last 365 days

0 solves
Solve your first level to start the chain.

Badges

0 of 45 earned

Milestones (0 / 11)

Mastery

No-hint Master

Complete every level in an area without using a single hint.

First-Try Area

Solve every level in an area on the first try.

Polyglot

Solve at least one level in every area.

Track Finisher

Complete 100% of a homepage section (Start here, Dive deeper, or Security).

Pristine Encoder

Solve every Encoding level first try with zero hints.

Volume

Solver

Solve 10 levels.

Regular

Solve 25 levels.

Dedicated

Solve 50 levels.

Completionist

Solve every level in the arcade.

Hard mode

Hard Mode Clear

Solve any hard-mode challenge.

Hard Mode Hero

Solve every level that ships a hard-mode challenge. The bar rises as more hard-mode levels land.

Specialists (0 / 25)

Encoding Specialist

Not encryption.

Classical Ciphers Specialist

Puzzles before math.

Modern Symmetric Specialist

AES and friends.

Public Key Specialist

The key exchange miracle.

Hashing Specialist

Integrity, not secrecy.

Applied Specialist

TLS, PGP, Signal, real systems.

Security Practice Specialist

Real-world security for engineers.

AI Systems Specialist

How language models actually work.

Foundations Specialist

Everyday engineering basics.

Networking Specialist

How packets become pages.

CI/CD Specialist

Build, test, ship.

SRE Specialist

Keep the service alive.

APIs Specialist

HTTP, REST, auth, pagination — the interfaces between services.

Git Specialist

Version control, for real this time.

Databases Specialist

SQL, indexes, transactions.

Frontend Specialist

HTML, CSS, React, rendering, performance.

Unix Specialist

The system around the shell.

macOS Specialist

Mac power-user skills.

IT Specialist

Helpdesk to fleet: the skills the company actually depends on.

Data Types Specialist

Numbers, collections, nulls, strings — what the bits actually mean.

Containers Specialist

Docker, Kubernetes, and the space between.

Web Security Specialist

XSS, CSRF, SSRF, CSP — the web attacker's playbook.

Cloud Specialist

Mental models for the big three.

Languages & Runtimes Specialist

How code becomes execution.

Algorithms Specialist

Sorting, searching, traversing — watch them unfold.

Flag Finds (0 / 9)

Inspector

Curious minds look under the hood.

Deep Inspector

Attributes can hide treasures.

Codebreaker

The hex lesson is more than instructional.

Decoder

Base64 speaks volumes.

Apprentice Cartographer

Somewhere, a transmission looks suspiciously like the Caesar lesson itself.

Breadcrumb Cryptographer

Two suspicious hex strings around the site are the same length — that's rarely an accident.

Waypoint Listener

The Network tab carries more than JSON — headers speak too.

Classic Gamer

Some combos never die.

Explorer

Go where the map ends.

Easter Eggs

You've found 0 of 9 flags

Hidden `DECIMA{...}` strings live throughout the arcade. Find them, paste them below, collect badges.

Inspector

Locked
Curious minds look under the hood.
Locked
Attributes can hide treasures.

Puzzle

Locked
The hex lesson is more than instructional.
Locked
Base64 speaks volumes.
Locked
Somewhere, a transmission looks suspiciously like the Caesar lesson itself.
Locked
Two suspicious hex strings around the site are the same length — that's rarely an accident.
Locked
The Network tab carries more than JSON — headers speak too.

Curiosity

Locked
Some combos never die.
Locked
Go where the map ends.