PlayIndex

PlayIndex turns live Steam concurrent player counts into a market where games are the stocks. Player counts update every 10 minutes, and you buy and sell fictional shares as prices move. You build a portfolio around games you think may gain players, then sell before interest fades.

Trade the market

You can buy and sell any game on the board using fractional shares. Limit buys, take-profits and stop-losses trigger during market scans, even while you are away. Charts show prices alongside player-count history, with 1D, 1W, 1M and All ranges, average-buy and trade markers, and candlesticks that unlock as you progress. New Steam releases enter through IPOs, which have an opening window before their prices settle.

Follow market moves

Sharp price changes are logged as Market Events and paired with Steam headlines that may explain them, such as a free weekend, a major patch or a controversy. A live tape includes a movers ticker and a feed of other traders’ activity. Aggregated news headlines are flagged when a story moves a price, and a watchlist keeps selected games close at hand.

Progress and compete

Trades and milestones earn levels and XP. Rotating weekly objectives and badges reward credits and XP, and have matching Steam achievements. You can unlock equippable titles, name colours, avatar frames and terminal colour themes.

The global leaderboard ranks all-time net worth and links each trader to a public profile. Monthly Seasons rank players by portfolio growth, rather than starting time, while private Groups let friends compare their results on separate leaderboards.

Invest in The City

At Level 10, you unlock a savings account and a property market. Buy lots in a city whose districts follow game genres, then build there as a way to hedge against a poor week in the market.

There are eight building types, each with three tiers. Some earn rent every hour; others produce materials, lower trading fees, increase the value of neighbouring lots or pay interest on savings. Building materials are earned through play and traded between players in The City's flea market. Cosmetic building facades can drop as you play; these are Steam Inventory items that you can trade or sell on the Steam Community Market.

Streamer Mode

Streamer Mode opens a second window designed for OBS and styled like a financial news channel. It shows a live trade tape, movers ticker, a banner naming the game on screen and a chart, with your camera filling the frame. Chroma-key mode removes unused space for compositing. Your balance, portfolio and orders remain on your private screen; the broadcast shows only the market.

Check in when you like

The market updates every 10 minutes, so you can check charts, trade and leave. When you return after a few hours, a digest totals rent earned and summarizes market changes during your absence. A desktop Companion app keeps your portfolio visible while PlayIndex is closed and sends tray alerts when a game you hold or watch makes a sharp move.