attack / defense · tick-based

Everyone gets the same box. Break theirs, patch yours.

An attack/defense CTF platform that runs by the tick. Checkers plant fresh flags in every team's services, you get two minutes to steal them and keep your own services breathing. No question board, no categories, nothing for 400.

Open the dashboard See the scoreboard

One tick, every two minutes

00:00

Checkers plant flags

Every service on every box gets a fresh flag and a health check. Same images, same vulnerabilities, no head start.

00:00 — 02:00

You attack and patch

Run your exploit against the other teams, then close the hole on your own box before they turn it around on you.

02:00

The tick settles

Stolen flags become attack points. A service that failed its check earns nothing that tick and drags your SLA down with it.

Flags rot in 5 ticks

Only fresh flags score. An exploit you wrote an hour ago still has to land right now, against a box that has been patched since.

SLA that bites back

Patch too aggressively and the checker fails. A dead service scores nothing, however many flags you took with it.

Every capture, live

Flags in and out of your team, by service and tick, the moment they land. You see the breach while it is still happening.