I built a tiny browser game that throws rapid-fire addition puzzles at you and tracks your best streaks. Each round is just 5 problems, so it’s all about speed and focus.

Instant guest play (no signup) with a Real-time top-10 leaderboard (shortest time as tiebreaker) and a personal game history.

You can check out the code here: https://github.com/sarthaksoni25/AddVenture