Greasy Fork is available in English.
Ultimate Slither.io Mod Menu - Optimized & Fixed!
// ==UserScript==
// @name SLITHER.IO ULTIMATE MOD MENU 2025/2026 (PRESS M)
// @namespace http://tampermonkey.net/
// @version 9.6
// @description Ultimate Slither.io Mod Menu - Optimized & Fixed!
// @author GITHUB.COM/DXXTHLY - HTTPS://DSC.GG/143X discord: dxxthly. & waynesg
// @match http://slither.io/
// @match https://slither.io/
// @match http://slither.com/io
// @match https://slither.com/io
// @grant none
// ==/UserScript==
// New versions on GitHub & Discord
(function () {
'use strict';
// === CONFIG ===
const config = {
menuPosition: 'right',
defaultCircleRadius: 150,
circleRadiusStep: 20,
minCircleRadius: 50,
maxCircleRadius: 300,
deathSoundURL: 'https://www.myinstants.com/media/sounds/minecraft-death-sound.mp3',
godModeVideoURL: 'https://youtu.be/ghAap5IWu1Y'
};
// === STATE ===
const state = {
features: {
circleRestriction: false,
autoCircle: false,
performanceMode: 1,
deathSound: true,
fpsDisplay: false,
autoBoost: false,
showServer: false,
},
menuVisible: true,
zoomFactor: 1.0,
circleRadius: config.defaultCircleRadius,
fps: 0,
fpsFrames: 0,
fpsLastCheck: Date.now(),
deathSound: new Audio(config.deathSoundURL),
isInGame: false,
boosting: false,
autoCircleAngle: 0,
ping: 0,
server: '',
leaderboard: [],
lastSnakeAlive: true,
boostingInterval: null,
};
let autoCircleRAF = null;
// === MENU CREATION ===
const menu = document.createElement('div');
menu.id = 'mod-menu';
menu.style.position = 'fixed';
menu.style.top = '50px';
menu.style.background = 'rgba(17, 17, 17, 0.92)';
menu.style.border = '2px solid #4CAF50';
menu.style.borderRadius = '10px';
menu.style.padding = '20px';
menu.style.zIndex = '9999';
menu.style.color = '#fff';
menu.style.fontFamily = 'Arial, sans-serif';
menu.style.fontSize = '14px';
menu.style.width = '460px';
menu.style.boxShadow = '0 0 15px rgba(0,0,0,0.7)';
menu.style.backdropFilter = 'blur(5px)';
menu.style.transition = 'all 0.3s ease';
menu.style.userSelect = "text";
if (config.menuPosition === 'left') {
menu.style.left = '50px';
} else if (config.menuPosition === 'center') {
menu.style.left = '50%';
menu.style.transform = 'translateX(-50%)';
} else {
menu.style.right = '50px';
}
document.body.appendChild(menu);
// FPS display
const fpsDisplay = document.createElement('div');
fpsDisplay.id = 'fps-display';
fpsDisplay.style.position = 'fixed';
fpsDisplay.style.bottom = '10px';
fpsDisplay.style.right = '10px';
fpsDisplay.style.color = '#fff';
fpsDisplay.style.fontFamily = 'Arial, sans-serif';
fpsDisplay.style.fontSize = '14px';
fpsDisplay.style.zIndex = '9999';
fpsDisplay.style.display = 'none';
fpsDisplay.style.background = 'rgba(0,0,0,0.5)';
fpsDisplay.style.padding = '5px 10px';
fpsDisplay.style.borderRadius = '5px';
document.body.appendChild(fpsDisplay);
// Ping display
const pingDisplay = document.createElement('div');
pingDisplay.id = 'ping-display';
pingDisplay.style.position = 'fixed';
pingDisplay.style.bottom = '35px';
pingDisplay.style.right = '10px';
pingDisplay.style.color = '#fff';
pingDisplay.style.fontFamily = 'Arial, sans-serif';
pingDisplay.style.fontSize = '14px';
pingDisplay.style.zIndex = '9999';
pingDisplay.style.display = 'block';
pingDisplay.style.background = 'rgba(0,0,0,0.5)';
pingDisplay.style.padding = '5px 10px';
pingDisplay.style.borderRadius = '5px';
document.body.appendChild(pingDisplay);
// Circle restriction visual
const circleVisual = document.createElement('div');
circleVisual.id = 'circle-visual';
circleVisual.style.position = 'fixed';
circleVisual.style.border = '2px dashed rgba(76, 175, 80, 0.7)';
circleVisual.style.borderRadius = '50%';
circleVisual.style.pointerEvents = 'none';
circleVisual.style.transform = 'translate(-50%, -50%)';
circleVisual.style.zIndex = '9998';
circleVisual.style.display = 'none';
circleVisual.style.transition = 'all 0.2s ease';
document.body.appendChild(circleVisual);
// === MENU CONTENT ===
function updateMenu() {
menu.innerHTML = `
<div style="display:flex;justify-content:space-between;align-items:center;margin-bottom:10px">
<h2 style="margin:0;color:#4CAF50;">GAY MANS MOD MENU</h2>
<div style="color:#aaa;font-size:12px">v9.1</div>
</div>
<div style="display: grid; grid-template-columns: 1fr 1fr; gap: 15px; margin-bottom:15px">
<div>
<h3 style="color:#4CAF50;border-bottom:1px solid #444;padding-bottom:5px;margin-top:0">MOVEMENT</h3>
<p><strong>K: Circle Restriction:</strong> <span style="color:${state.features.circleRestriction ? 'lime' : 'red'}">${state.features.circleRestriction ? 'ON' : 'OFF'}</span></p>
<p><strong>J/L: Circle Size:</strong> ${state.circleRadius}px</p>
<p><strong>A: Auto Circle (left):</strong> <span style="color:${state.features.autoCircle ? 'lime' : 'red'}">${state.features.autoCircle ? 'ON' : 'OFF'}</span></p>
<p><strong>B: Auto Boost:</strong> <span style="color:${state.features.autoBoost ? 'lime' : 'red'}">${state.features.autoBoost ? 'ON' : 'OFF'}</span></p>
<h3 style="color:#4CAF50;border-bottom:1px solid #444;padding-bottom:5px;margin-top:15px">ZOOM</h3>
<p><strong>Z: Zoom In</strong></p>
<p><strong>X: Zoom Out</strong></p>
<p><strong>C: Reset Zoom</strong></p>
</div>
<div>
<h3 style="color:#4CAF50;border-bottom:1px solid #444;padding-bottom:5px;margin-top:0">VISUALS</h3>
<p><strong>1-3: Performance Mode</strong> <span style="color:${['lime','cyan','orange'][state.features.performanceMode-1] || '#aaa'}">${['Low: Minimal','Medium: Balanced','High: Quality'][state.features.performanceMode-1] || 'Off'}</span></p>
<p><strong>F: FPS Display:</strong> <span style="color:${state.features.fpsDisplay ? 'lime' : 'red'}">${state.features.fpsDisplay ? 'ON' : 'OFF'}</span></p>
<p><strong>V: Death Sound:</strong> <span style="color:${state.features.deathSound ? 'lime' : 'red'}">${state.features.deathSound ? 'ON' : 'OFF'}</span></p>
<p><strong>T: Show Server IP:</strong> <span style="color:${state.features.showServer ? 'lime' : 'red'}">${state.features.showServer ? 'ON' : 'OFF'}</span></p>
<h3 style="color:#4CAF50;border-bottom:1px solid #444;padding-bottom:5px;margin-top:15px">LINKS</h3>
<p><strong>G: GitHub</strong></p>
<p><strong>D: Discord</strong></p>
<p><strong>Y: GODMODE</strong></p>
</div>
</div>
<div style="display:grid;grid-template-columns:1fr 1fr;gap:10px;background:rgba(76, 175, 80, 0.1);padding:10px;border-radius:5px;margin-bottom:15px">
<div>
<h3 style="color:#4CAF50;margin-top:0;margin-bottom:10px">STATUS</h3>
<p><strong>Game State:</strong> ${state.isInGame ? 'In Game' : 'Menu'}</p>
<p><strong>Zoom:</strong> ${Math.round(100 / state.zoomFactor)}%</p>
<p><strong>Ping:</strong> <span id="ping-value">${state.ping} ms</span></p>
<p><strong>FPS:</strong> ${state.fps}</p>
</div>
<div>
<h3 style="color:#4CAF50;margin-top:0;margin-bottom:10px">EXTRA</h3>
<p><strong>Server:</strong> ${state.features.showServer ? (state.server || 'N/A') : 'Hidden'}</p>
<p><strong>Leaderboard:</strong><br>
${state.leaderboard.length ? state.leaderboard.map((x,i)=>`${i+1}. ${x}`).join('<br>') : 'N/A'}
</p>
</div>
</div>
<div style="text-align:center;font-size:12px;color:#aaa;border-top:1px solid #444;padding-top:10px">
Press <strong>M</strong> to hide/show menu | <b>DSC.GG/143X</b> | <strong>P</strong> Screenshot<br>
<span style="color:#aaa;">Made by: <b>dxxthly.</b> & <b>waynesg</b> on Discord</span>
</div>
`;
}
updateMenu();
// === GAME STATE DETECTION ===
function checkGameState() {
const gameCanvas = document.querySelector('canvas');
const loginForm = document.getElementById('login');
state.isInGame = !!(gameCanvas && gameCanvas.style.display !== 'none' && (!loginForm || loginForm.style.display === 'none'));
setTimeout(checkGameState, 1000);
}
checkGameState();
// === CIRCLE RESTRICTION ===
function drawCircleRestriction() {
if (state.features.circleRestriction && state.isInGame) {
const centerX = window.innerWidth / 2;
const centerY = window.innerHeight / 2;
circleVisual.style.left = `${centerX}px`;
circleVisual.style.top = `${centerY}px`;
circleVisual.style.width = `${state.circleRadius * 2}px`;
circleVisual.style.height = `${state.circleRadius * 2}px`;
circleVisual.style.display = 'block';
} else {
circleVisual.style.display = 'none';
}
requestAnimationFrame(drawCircleRestriction);
}
drawCircleRestriction();
document.addEventListener('mousemove', function restrictToCircle(e) {
if (!state.features.circleRestriction || !state.isInGame) return;
const centerX = window.innerWidth / 2;
const centerY = window.innerHeight / 2;
const dx = e.clientX - centerX;
const dy = e.clientY - centerY;
const distance = Math.sqrt(dx * dx + dy * dy);
if (distance > state.circleRadius) {
e.stopImmediatePropagation();
e.preventDefault();
const angle = Math.atan2(dy, dx);
const newX = centerX + Math.cos(angle) * state.circleRadius;
const newY = centerY + Math.sin(angle) * state.circleRadius;
const canvas = document.querySelector('canvas');
if (canvas) {
const event = new MouseEvent('mousemove', {
clientX: newX,
clientY: newY,
bubbles: true
});
canvas.dispatchEvent(event);
}
}
}, true);
// === FIXED AUTO CIRCLE (now stays smooth) ===
function autoCircle() {
if (!state.features.autoCircle || !state.isInGame) return;
state.autoCircleAngle += 0.04;
const centerX = window.innerWidth / 2;
const centerY = window.innerHeight / 2;
const radius = state.circleRadius * 0.8;
const moveX = centerX + Math.cos(state.autoCircleAngle) * radius;
const moveY = centerY + Math.sin(state.autoCircleAngle) * radius;
const canvas = document.querySelector('canvas');
if (canvas) {
const event = new MouseEvent('mousemove', {
clientX: moveX,
clientY: moveY,
bubbles: true
});
canvas.dispatchEvent(event);
}
autoCircleRAF = requestAnimationFrame(autoCircle);
}
// === AUTO BOOST ===
function autoBoost() {
if (!state.features.autoBoost || !state.isInGame) {
if (state.boosting) {
state.boosting = false;
if (typeof window.setAcceleration === 'function') window.setAcceleration(0);
document.dispatchEvent(new KeyboardEvent('keyup', { key: ' ' }));
}
return;
}
if (!state.boosting) {
state.boosting = true;
if (typeof window.setAcceleration === 'function') window.setAcceleration(1);
document.dispatchEvent(new KeyboardEvent('keydown', { key: ' ' }));
}
}
// === FPS COUNTER ===
function fpsCounter() {
state.fpsFrames++;
const now = Date.now();
if (now - state.fpsLastCheck >= 1000) {
state.fps = state.fpsFrames;
state.fpsFrames = 0;
state.fpsLastCheck = now;
if (state.features.fpsDisplay) {
fpsDisplay.textContent = `FPS: ${state.fps}`;
}
}
requestAnimationFrame(fpsCounter);
}
fpsCounter();
// === DEATH SOUND ===
function deathSoundObserver() {
let lastState = true;
setInterval(() => {
if (!state.features.deathSound) return;
if (window.snake && lastState && !window.snake.alive) {
state.deathSound.pause();
state.deathSound.currentTime = 0;
state.deathSound.play();
}
const died = document.getElementById('died');
if (died && died.style.display !== 'none' && lastState) {
state.deathSound.pause();
state.deathSound.currentTime = 0;
state.deathSound.play();
}
lastState = window.snake ? window.snake.alive : false;
}, 100);
}
state.deathSound.preload = 'auto';
state.deathSound.load();
state.deathSound.addEventListener('ended', () => {
state.deathSound.currentTime = 0;
});
deathSoundObserver();
// === PERFORMANCE MODES ===
function applyPerformanceMode() {
if (typeof window !== "undefined") {
switch (state.features.performanceMode) {
case 1: // Low
window.want_quality = 0;
window.high_quality = false;
window.render_mode = 1;
break;
case 2: // Medium
window.want_quality = 1;
window.high_quality = false;
window.render_mode = 2;
break;
case 3: // High
window.want_quality = 2;
window.high_quality = true;
window.render_mode = 2;
break;
default:
break;
}
}
updateMenu();
}
// === ZOOM LOCK ===
function zoomLockLoop() {
if (typeof window.gsc !== 'undefined') {
window.gsc = state.zoomFactor;
}
requestAnimationFrame(zoomLockLoop);
}
zoomLockLoop();
// === PING DISPLAY ===
function pingLoop() {
let ping = 0;
if (window.lagging && typeof window.lagging === "number") {
ping = Math.round(window.lagging);
} else if (window.lag && typeof window.lag === "number") {
ping = Math.round(window.lag);
}
state.ping = ping;
pingDisplay.textContent = `Ping: ${ping} ms`;
const pingValue = document.getElementById("ping-value");
if (pingValue) pingValue.textContent = `${ping} ms`;
setTimeout(pingLoop, 500);
}
pingLoop();
// === SCREENSHOT BUTTON (P) ===
document.addEventListener('keydown', function (e) {
if (e.key.toLowerCase() === 'p' && state.isInGame) {
try {
const canvas = document.querySelector('canvas');
if (canvas) {
const dataURL = canvas.toDataURL('image/png');
const a = document.createElement('a');
a.href = dataURL;
a.download = `slitherio_screenshot_${Date.now()}.png`;
a.click();
}
} catch (err) {
alert('Screenshot failed.');
}
}
});
// === GET SERVER IP ===
function getServerIP() {
if (window.bso && window.bso.ip) {
state.server = window.bso.ip;
} else if (window.bso && window.bso.url) {
state.server = window.bso.url;
} else {
state.server = '';
}
}
setInterval(getServerIP, 1000);
// === GET LEADERBOARD ===
function getLeaderboard() {
const lb = [];
for (let i = 1; i <= 3; ++i) {
const el = document.getElementById('lb' + i);
if (el && el.textContent) lb.push(el.textContent.trim());
}
state.leaderboard = lb;
}
setInterval(getLeaderboard, 1000);
// === MAIN LOOPS ===
function mainLoop() {
autoBoost();
requestAnimationFrame(mainLoop);
}
mainLoop();
// === KEYBOARD SHORTCUTS ===
document.addEventListener('keydown', function (e) {
if (e.target.tagName === 'INPUT' || e.target.tagName === 'TEXTAREA') return;
switch (e.key.toLowerCase()) {
case 'm':
state.menuVisible = !state.menuVisible;
menu.style.display = state.menuVisible ? 'block' : 'none';
break;
case 'k':
state.features.circleRestriction = !state.features.circleRestriction;
updateMenu();
break;
case 'j':
state.circleRadius = Math.max(config.minCircleRadius, state.circleRadius - config.circleRadiusStep);
updateMenu();
break;
case 'l':
state.circleRadius = Math.min(config.maxCircleRadius, state.circleRadius + config.circleRadiusStep);
updateMenu();
break;
case 'a':
state.features.autoCircle = !state.features.autoCircle;
if (state.features.autoCircle) {
autoCircle();
} else {
if (autoCircleRAF) {
cancelAnimationFrame(autoCircleRAF);
autoCircleRAF = null;
}
}
updateMenu();
break;
case 'b':
state.features.autoBoost = !state.features.autoBoost;
updateMenu();
break;
case 'z':
state.zoomFactor = Math.max(0.3, state.zoomFactor - 0.1);
updateMenu();
break;
case 'x':
state.zoomFactor = Math.min(2.0, state.zoomFactor + 0.1);
updateMenu();
break;
case 'c':
state.zoomFactor = 1.0;
updateMenu();
break;
case '1':
case '2':
case '3':
state.features.performanceMode = parseInt(e.key);
applyPerformanceMode();
break;
case 'f':
state.features.fpsDisplay = !state.features.fpsDisplay;
fpsDisplay.style.display = state.features.fpsDisplay ? 'block' : 'none';
updateMenu();
break;
case 'v':
state.features.deathSound = !state.features.deathSound;
updateMenu();
break;
case 't':
state.features.showServer = !state.features.showServer;
updateMenu();
break;
case 'g':
window.open('https://github.com/Dxxthly', '_blank');
break;
case 'd':
window.open('https://dsc.gg/143x', '_blank');
break;
case 'y': // GODMODE Easter Egg
window.open(config.godModeVideoURL, '_blank');
break;
}
});
// === INITIAL SETUP ===
applyPerformanceMode();
})();