Code Arena
Solve timed programming problems in the browser, test them against hidden cases, and earn Zeal and Jolt.
Spot Quiz
Generate or play five-question quizzes on dozens of topics, try the game modes, and earn Zeal and Jolt.
Challenge labs (CTF)
Deploy a capture-the-flag lab, start missions, find and submit flags, and play as a team with your clan.
Events
Register for a CTF event on your own or with your clan, play while it is live, and follow the event leaderboard.
Leaderboards and leagues
Every leaderboard on the platform, what each one ranks by, and how the League of Ronin levels work.
Clans and clubs
Clans are competitive teams for challenge labs and events; clubs are communities for discussion. How to create, join and run both.
Fair play
How integrity is kept in Code Arena, Spot Quiz, challenge labs and events — what is enforced, what is recorded, and what counts as cheating.