Missions
Code challenges graded instantly against real test cases, from easy to advanced.
SoloSYSTEM ONLINEv0.6.0
Code.Decrypt.Levelup.
Learn to code the way you infiltrate a network. Real-time graded missions, a guided academy, live PvP duels and a playground — in a native desktop app.
Free to start · Windows · macOS · Linux
- 8
- Languages
- 192+
- Missions
- Real time
- Grading
CIPHER_OSLIVE DEMO
XP 2 840CR 1 280 7d STREAK
RÉSEAU · CARTENŒUDS: 192/192
AVANCÉ
MOYEN
FACILE
MISSION · BRIEFING
Sum a List
Infiltre le nœud. Résous le défi pour progresser.
RÉCOMPENSE+50 XPCRÉDITS+80 CR
Three moves, one climb
Every node on the network is a code challenge. Infiltrate, solve, rank up.
- 01Infiltrate
Pick a node
Open the network map and choose a mission matched to your level and language.
- 02Decrypt
Solve the challenge
Write your code in the built-in editor. It runs and gets graded live against the test cases.
- 03Level up
Climb the ranks
Earn XP, credits and ranks. Unlock new sectors and take on other players in the arena.
A full game, not a tutorial
Four modes tied together by a single progression.
Academy
Structured tracks per language — lessons, examples and derived exercises that ramp in difficulty.
GuidedArena
Live code duels against other players, with a leaderboard and a rating delta on every win.
PvPPlayground
A multi-language sandbox to prototype, test an idea and run code with no constraints.
FreeDownload CIPHER
Available on Windows, macOS and Linux