Developers & game makers
Plan, build and test browser and mobile games with practical examples and tool comparisons.
Test the edge of each rule deliberately
Retest the working parts after every meaningful change
Control the variables that make a game test repeatable
Check the paths between game states
Make persistence behavior intentional and testable
Prioritize browser differences that affect play
Make each iteration answer one useful question
Find the console message that explains the failure
Validate generated content as part of the game
Check hosting permission before placing a game in an iframe
Decide what you need to take out of the game maker
Find out whether you are extending a game or making a new branch