solve · summon · duel
Interview prep as a multiplayer auto-battler
Explore a living island where every region is a coding topic. Solve real interview problems to summon an army — then battle monsters, bosses, and your friends with it.
Free to play · 250 hand-crafted problems across 11 topics
actual gameplay
A world made of problems
Every region of the island is a coding topic — arrays, graphs, dynamic programming. Solving clears the mist and unlocks new lands.
Solve to summon
Each solve powers your army. Take it into auto-battles against roaming monsters, topic bosses, and your friends.
Train like it's the real thing
Timed solves in six languages, system-design whiteboards, and voice mock interviews that push back like a real interviewer.
Your next interview is a boss fight.
Train for it somewhere you'll actually keep coming back to.
Start your run — it's free