If you are interested in how developers build these buttons for their own games, here is a tutorial on creating a Kill All developer product:
To kill all players, the script must iterate through the Players service and find the Humanoid object of each character. Aimblox BETA KILL AL....txt
Built by the game owner, usually restricted to admins or sold as a game pass/developer product. If you are interested in how developers build
Many games offer "Kill All" as a one-time purchase using Robux. This is done via MarketplaceService . When the ProcessReceipt confirms a successful purchase, the killAllPlayers function is triggered. 3. Exploits vs. Features Aimblox BETA KILL AL....txt