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Game servers sometimes leak a lot of data to the client. I once built an app that would intercept API responses made by my legitimate game client and generate intelligence on every player's troop deployment on the entire server. It got to the point where I could track the logins of every player and predict whether they would login to attack during the next time period. Each player could deploy a fixed number of troops per each 24-hour cycle. There were 3 battles per cycle. Once they deployed all troops, they were just a spectator.

I recruited a 24/7 team and dominated that game. We could predict with 100% accuracy how the opponent's team members would deploy their troops, in what quantity, and when. :)

My data model updated a shared spreadsheet, so my team members could see the actions we still needed to take without having to learn a new UI.




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