PunkBuster

PunkBuster 3.8

Free
It is a tool designed to combat cheating in some of the most popular games

PunkBuster is a tool designed to combat cheating in some of the most popular games. It provides real-time memory scanning on player's computers searching for known hacks/cheats with frequent status reports, highly encrypted, sended to the PB Server. The PB Admins can request actual screenshot samples from specific players and/or can configure the PB Server to randomly grab screenshot samples from players during gameplay.

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