If by “stock market prediction game” you mean pick stocks with fake money, compete against other players, and see whether your predictions outperform, these are the best free options I found in 2026:
This is particularly good if you want to set up a league with friends, family, or a club. You can customize starting cash, trading rules, contest dates, and eligible investments while using real-time prices.
Best for: a structured stock-picking competition.
🥉 Best casual option: MarketWatch Virtual Stock Exchange
This is a strong choice if you want a straightforward virtual stock market competition using real stocks and market data, without as much educational material surrounding it. Current 2026 comparisons continue to list it among the leading free options.
Best for: quickly creating/joining a stock-picking game.
If you mean actual prediction, not paper trading
There's an important distinction. Most “stock market games” have you buy stocks and compete on portfolio returns. A true prediction game instead asks something like:
“Will this stock go up or down over the next 5 minutes?”
and scores you on prediction accuracy.
For that specific format, newer games such as Downstox and DeepTicker are worth looking at; they are more game-like than traditional simulators.
My ranking
Game
Free
Real market data
Competition
Game-like
Best for
Wall Street Survivor
✅
✅
⭐⭐⭐⭐⭐
⭐⭐⭐⭐⭐
Best overall
HowTheMarketWorks
✅
✅
⭐⭐⭐⭐⭐
⭐⭐⭐
Friends/classes
MarketWatch VSE
✅
✅
⭐⭐⭐⭐
⭐⭐⭐⭐
Casual competition
Downstox
✅
—
⭐⭐⭐⭐
⭐⭐⭐⭐⭐
Actual prediction
DeepTicker
✅
✅
⭐⭐⭐⭐
⭐⭐⭐⭐⭐
Gamified trading
My pick: Start with Wall Street Survivor if you want to learn + compete. If what you really want is a game where you make individual up/down predictions and earn points for accuracy, tell me that—I can find the best pure prediction game rather than a paper-trading simulator.
If you are looking for the best free-to-play stock market games and simulators, the right choice depends on whether you want a pure educational/competitive simulator using real market data or a gamified/fictional environment where you can trade fast without real-world anchors.
The top options available span different styles:
Investopedia Stock Simulator : Widely considered the gold standard for virtual trading. It is completely free, gives you a pool of virtual cash, and lets you trade real-time stocks and ETFs based on actual market data from the NYSE and Nasdaq. You can join public competitions or create private custom games to compete against friends.
MarketWatch Virtual Stock Exchange : A fast, browser-based, highly accessible simulator. It allows you to quickly set up or join public and private trading rooms, trade stocks and options, and track leaderboards seamlessly without heavy setup.
Wall Street Survivor : This platform gamifies the learning process heavily. It gives you a virtual $100,000 portfolio, pairs stock trading with interactive multimedia courses/lessons, and features regular monthly contests with prizes, making it feel much more like an actual progression game.
Moshimo StockSim : A newer browser-based entry if you prefer a fictional sandbox. It utilizes AI-driven news generation and a shared virtual market where player trades and generated events directly move prices, letting you trade fictional companies without real-world constraints.
Webull Paper Trading or Thinkorswim : If you want a zero-risk simulator that maps 1:1 to an actual professional brokerage terminal, major platforms offer robust, free paper-trading accounts loaded with real-time data, advanced charting, and technical indicators.
Are you looking for something that uses real-time live market data to practice realistic strategies, or a more gamified competition with leaderboards and courses ? Let me know and I can help you pick the exact platform.