GMs can use built-in Roll20 features to verify the integrity of dice rolls and prevent common exploits:
Several community-developed projects on platforms like GitHub demonstrate these vulnerabilities for educational or illustrative purposes: roll20-cheat-dice
: A non-technical "cheat" involves temporarily inflating ability scores or modifiers on a character sheet before rolling, then quickly reverting them before the Game Master (GM) notices. Known Tools and Scripts GMs can use built-in Roll20 features to verify
: Using the platform's 3D Dice feature is often recommended, as these visual representations are harder to manipulate through simple packet editing. roll20-cheat-dice
While Roll20 uses a "Quantum Roll" system to generate random numbers server-side, vulnerabilities often stem from how these results are communicated to and from the player's client.