Greasy Fork is available in English.
always acts as in window
// ==UserScript==
// @name Prevents inactivity
// @namespace http://tampermonkey.net/
// @version 1.0
// @description always acts as in window
// @author meatman2tasty
// @match http://karnage.io/*
// @grant none
// ==/UserScript==
setInterval(function(){
setTimeout(inWindow= true, 2);
}, 10);