Solve fast.Or die trying.
A multiplayer arena where arithmetic is a weapon. Three seconds a question. Every correct answer lands damage, every miss costs you blood. Queue a 1v1 duel or drop into a battle royale and outlast the lobby.
Pick your arena
Both modes run on the same engine and the same three-second clock. What changes is who is pointing the damage at you.
1v1 Duel
Head-to-head. Every correct answer chips 5 HP off your opponent — more if you are fast, double on a critical. Miss, and you take 10 to the chest. Let the clock run out and it costs 15.
Battle Royale
A full lobby, one survivor. Every 3 seconds the arena ranks everyone by speed and accuracy. Top 20% take nothing. The bottom 30% bleed. Under 10 players left, sudden death doubles all of it.
Three seconds is a lifetime
Queue
Pick duel or royale. Matchmaking pairs you by ELO and drops the lobby into a ready check.
Solve
A fresh expression every three seconds. Four options, keys 1–4, no partial credit and no second chances.
Survive
Damage is a function of speed, streak and momentum. Health never regenerates. Last player standing takes the rating.
Answer window
0Fixed for everyone. Answer under half a second and you earn the full speed bonus.
Speed bonus
0Extra damage scaling from a 500ms answer down to nothing at the 3s buzzer.
Streak to crit
0Five in a row unlocks bonuses; ten stacks a critical multiplier on top.
Momentum window
0A rolling window of your recent answers. Stay hot and every hit lands harder.
Two ratings.
One reputation.
Duel and battle royale carry separate ELO. Winning a duel against a stronger opponent moves you further than farming a lobby of recruits — and the global board only shows the top 50 of each.
Everyone starts at 1200. Tier names below are how the ladder reads at a glance.
Show us your arithmetic
Free to play. No download. Sign up, pick a mode and you are in a match in under a minute.
Create your account