Remix: Clanka.io

Build a small, playable browser game inspired by "Clanka.io" (Action, Shooter, Stealth).
Concept: A 1-bit ink-on-paper FPS where clanker assassins (clankas) hunt each other across a passenger ship, and shooting a passenger ends your run.
Tone/hook (from the game's own page): Hunt clanker assassins (clankas) disguised as passengers. A 1-bit io FPS.
Tech: use Vanilla JS / Canvas; keep it to a single page that loads instantly with no login or install.
Controls (as seen on the original's screen): WASD to move, mouse to aim or look, tap on mobile. Show them on a short how-to-play screen.
Multiplayer: the original is listed as multiplayer. Start with a local or bot opponent, then add online play (e.g. WebSockets) once the core loop is fun.
Core loop: include a visible score, a timer or round clock, an optional local high-score table, progress saved in localStorage.
Steps: 1) get the core mechanic playable with placeholder shapes, 2) add win/lose conditions and restart, 3) polish feel, visuals and sound, 4) add your own twist (setting, character or one new rule).
Make it your own: don't copy the original's name, art, text or code.