This visualization shows the average monthly player counts for several popular games on Steam from 2015 to 2021. The data is displayed as a stacked area chart called a ThemeRiver, using color-coded streams that flow over time to reveal trends and comparisons in player engagement. The visualization is rendered with SVG using D3 v6, leveraging `d3.stack`, `d3.area`, and `d3.curveCardinal` for smooth curves. The underlying data comes from the SteamCharts.csv file, with dates parsed using moment.js before being mapped to scales.