Check out these tutorials on creating kill-all systems and exploring the demo:
If you're a developer wanting to add a button to your own game: UNTITLED FPS GAME DEMO KILL ALL SCRIPT
Making enemies' head sizes larger for easier shots. Anti-Idle: Preventing you from being kicked for inactivity. Check out these tutorials on creating kill-all systems
Often implemented by developers as a "Developer Product" or button that allows a player to reset all other players in the server. 🎬 How to Use (For Developers) UNTITLED FPS GAME DEMO KILL ALL SCRIPT
Insert a script into the button that uses MarketplaceService to prompt a purchase.
Create a script in ServerScriptService that listens for the purchase and loops through all players to set their Humanoid.Health to 0.