Latest, 12 Nov 2026:3 usersMove the mouse over the chart for any month
Ratings count
monthly, 9 months
Latest, 12 Nov 2026:0 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Grey-Box Testing
Greybox Testing is an experimental indie online game that recreates the game testing process during its early development stages, where graphics are incomplete and everything exists only as basic blocks. The concept of "greybox" in game design refers to the step of building the mechanical structure before applying complete visuals and effects, and this game transforms that process into an interactive experience. When playing Greybox Testing browser game, you will explore mechanics, test movement, interact with the environment, and find areas for improvement in the design.
Unlike traditional games, this is a game about game development, suitable for those interested in programming, level design, and systems thinking. As a free indie browser experience, Greybox Testing is not only entertaining but also helps players better understand how a game is built from its foundation to a finished product.