Allows zooming in and out in Slither.io using keys 8 and 9. Key 1 reset the zoom - The domain name changed for slither so this has been updated to work.
// ==UserScript==
// @name Slither.io Zoom Hack WORKING 2025
// @namespace http://slither.io/
// @version 1.0
// @description Allows zooming in and out in Slither.io using keys 8 and 9. Key 1 reset the zoom - The domain name changed for slither so this has been updated to work.
// @author Icewerve
// @grant none
// @match http://slither.com/io
// @match http://slither.io/?c
// @match http://slither.io
// @license MIT
// ==/UserScript==
// Enable debug logging
window.logDebugging = false;
window.log = function() {
if (window.logDebugging) {
console.log.apply(console, arguments);
}
};
window.zoomMultiplier = 1.0;
window.updateZoom = function() {
window.gsc = window.zoomMultiplier;
document.getElementById("zoom_overlay").innerHTML =
`Press (8/9) to change zoom: ${window.zoomMultiplier.toFixed(1)}`;
};
window.recursiveZoomUpdate = function() {
window.gsc = window.zoomMultiplier;
requestAnimationFrame(window.recursiveZoomUpdate);
};
window.resetZoom = function() {
window.zoomMultiplier = 1.0;
window.updateZoom();
};
window.adjustZoom = function(amount) {
window.zoomMultiplier = Math.max(0.2, Math.min(3.0, window.zoomMultiplier + amount));
window.updateZoom();
};
document.oldKeyDown = document.onkeydown;
document.onkeydown = function(e) {
if (typeof document.oldKeyDown === "function") {
document.oldKeyDown(e);
}
if (document.activeElement.parentElement !== window.nick_holder) {
if (e.keyCode === 57) {
window.adjustZoom(0.1);
} else if (e.keyCode === 56) {
window.adjustZoom(-0.1);
} else if (e.keyCode === 49) {
window.resetZoom();
}
}
};
window.initZoomOverlay = function() {
let overlay = document.createElement("div");
overlay.id = "zoom_overlay";
overlay.style = "color: #FFF; font-family: Arial, sans-serif; font-size: 18px; position: fixed; left: 30px; top: 65px; z-index: 1000;";
overlay.innerHTML = "Press (8/9) to change zoom: " +window.zoomMultiplier + '</span>';
document.body.appendChild(overlay);
};
window.initt = function() {
window.initZoomOverlay();
window.updateZoom();
window.recursiveZoomUpdate();
};
window.initt();