Registers a single achievement-safe console command, /fsn-pulse, that reports the server's current tick, speed, and pause state over RCON so FactorioServers.com can graph UPS. No event handlers, no gameplay changes, no data collection. Fully auditable: https://github.com/factorioservers/fsn-pulse
Providing the player with new tools or adjusting the game interface, without fundamentally changing gameplay.