2025Solo — design, frontend, backend, data pipeline, deployment
ChartGame
A paper trading simulator that replays real charts bar-by-bar and scores you on alpha, not hindsight.
chartgame.app
Overview
Browser-based trading simulator that strips away hindsight by presenting historical stock data one bar at a time. Players commit to trades before seeing what comes next. Scoring is based on outperformance versus buy-and-hold — so managing risk matters more than chasing returns.
Tech Stack
Next.jsTypeScriptSupabaseTradingView
Key Highlights
Bar-by-bar chart replay with randomised start windows to prevent memorisation
Long and short trading with variable position sizing and averaged entries
Alpha-based scoring system — player return minus benchmark return
Drawing tools, keyboard shortcuts, and adjustable auto-play speed
User auth, session persistence, and per-user results history