what are the best multiplayer games online on a chrome for free

Playing games online directly through a Chrome browser can be a great way to enjoy gaming without having to download any software. Many great multiplayer games can be played for free using just your browser. Below are some popular online multiplayer games you can enjoy on Google Chrome:

1. **Agar.io** - A competitive game where you control a small circle (cell) that grows by eating smaller dots and other players' cells.

2. **Slither.io** - Inspired by the classic Snake game, you control a snake and consume orbs to grow longer while avoiding other snakes.

3. **Krunker.io** - A fast-paced first-person shooter with blocky graphics that can be played in a browser.

4. **Shell Shockers** - A quirky first-person shooter where you play as an egg and try to crack your opponents.

5. **Skribbl.io** - A fun drawing and guessing game where players take turns drawing a word assigned to them while others guess what it is.

6. **HaxBall** - A real-time multiplayer soccer game where you control a single disc-shaped player and try to score goals.

7. **Town of Salem** - A strategy game that challenges players to deduce the roles of other players and survive the night in a town full of secret roles.

8. **Catan Universe** - The classic board game Catan, where you collect and trade resources to build roads, settlements, and cities.

9. **Forge of Empires** - A strategy game where you build a city and develop it from the Stone Age onward throughout the various periods of history.

10. **Runescape** - An in-depth massively multiplayer online role-playing game (MMORPG) with simple graphics that can be played in a browser.

Keep in mind that the performance of these games can depend on various factors like your computer specs, internet speed, and the browser's capability. Also, while these games are free to play, some may feature in-game purchases or premium versions. Be sure to check the game's website or the Chrome Web Store for the most up-to-date options available to you.