Understanding Steam player counts
A current player count is a snapshot of concurrent activity. It is useful, but it is not the same thing as sales, total owners, reviews or lifetime popularity.
Concurrent players are a snapshot
The number shown for a game represents players observed at the snapshot used by the site. It tells you about activity at that moment. It does not tell you how many copies have been sold, how many people own the game or how many unique people played during an entire day.
Why large differences matter visually
Steam audiences can vary enormously. A conventional table gives exact numbers but makes every row occupy the same space. Game Bubbles uses circle size to make the scale difference easier to perceive, then keeps the ranked list underneath for precise comparison.
Time of day can change the picture
Games have different geographic audiences and play patterns. A snapshot taken at one time can therefore look different from another. That is one reason repeated observations are more informative than treating a single count as a permanent ranking.
Player count is not a review score
A large audience does not prove that one game is better than another, and a small audience does not make a game unsuccessful. Price, age, genre, platform availability, updates and community size can all affect activity. Game Bubbles deliberately keeps player activity separate from qualitative judgement.
Use the list as well as the bubbles
The visual map is capped at 60 bubbles for readability. The catalogue list underneath can contain many more matching games, making it useful when you want to move beyond the most visible titles in a category.