Wordle
Daily 5-letter word puzzle. 6 tries. Takes 3 minutes. Works on literally anything with a browser.
Play on NYT ↗
2048
Slide tiles to combine matching numbers. Simple to learn, surprisingly deep. Pure HTML5.
Play 2048 ↗
Slither.io
Battle royale snake with hundreds of real players. Optimised for mobile browsers. 5–10 min sessions.
Play Slither.io ↗Agar.io
Grow your cell by eating smaller players. One of the lightest multiplayer games around. Very old-device-friendly.
Play Agar.io ↗
Chess.com
Play vs computer or real opponents. Turn-based means very low resource usage — ideal for slow devices.
Play Chess ↗Cookie Clicker
Click a cookie. Build a bakery empire. Been running in browsers since 2013 — runs on anything.
Play Cookie Clicker ↗
GeoGuessr (free)
Dropped into a random Google Street View location — guess where you are. Educational and surprisingly addictive.
Play GeoGuessr ↗
Gartic Phone
Draw a prompt, pass it on, watch it transform into chaos. Mobile-first — just share a link with friends.
Play Gartic Phone ↗Infinite Craft
Combine fire, water, earth, and wind to craft new things — endlessly. Drag-and-tap. Ultra-lightweight.
Play Infinite Craft ↗BombParty
Type words containing a given syllable before the bomb explodes. Fast, frantic, and hilarious with friends.
Play BombParty ↗
Codenames Online
The classic team deduction board game — no account needed, just share a room code and start playing.
Play Codenames ↗Wormate.io
Like Slither.io but with candy and power-ups. Eat sweets to grow, avoid other worms. Very mobile-optimised.
Play Wormate.io ↗Sudoku (Web)
Classic number logic puzzle. Multiple difficulty levels. Touch-optimised, extremely light — works on decade-old phones.
Play Sudoku ↗
Krunker.io
Fast-paced browser FPS shooter. Surprisingly smooth even on older hardware — no download, runs in any browser.
Play Krunker ↗Retro Bowl
Retro-styled American football. Manage your team, call plays, throw touchdowns. Simple graphics = runs on anything.
Play Retro Bowl ↗Minesweeper Online
The classic Windows puzzle game — find all mines without detonating. Pure logic, ultra-lightweight.
Play Minesweeper ↗Skribbl.io
Online drawing and guessing game. One player draws, everyone else guesses. Works great on phone browsers.
Play Skribbl.io ↗Moto X3M
Physics-based motorcycle stunt game with 25+ levels. Short sessions, satisfying difficulty curve. Mobile touch-optimised.
Play Moto X3M ↗Antimatter Dimensions
An incremental idle game that starts simple and evolves into a complex numbers-climbing loop. Runs entirely in-browser.
Play Antimatter ↗UNO Online
The classic card game against real opponents. Simple graphics, instant load. Surprisingly low resource usage.
Play UNO ↗📊 How to get the best performance on an old phone
Works on anything
Text games (Wordle, BombParty), idle games (Cookie Clicker), and card/board games use almost no CPU or GPU.
Need good Wi-Fi
Multiplayer games like Slither.io and Agar.io need a stable connection. On weak Wi-Fi they may lag.
Quick tips
Close all other apps and tabs before playing. Restarting the browser clears RAM and can fix lag on old devices.