RuneScape is a massively-multiplayer online game (MMOG), set in a fantasy world of warring races, ravaged landscapes and sinister powers. Having chosen an adventurer, players are free to find their role within it: to live by the sword and face hundreds of enemies, to further the storyline in RuneScape's quests, or to train in any of a number of skills.

RuneScape has a gigantic world and detailed settings. It's in fact a tiny MMO with an 11MB Java client. As one of the earliest 3D browser games, RuneScape being upgraded constantly has the world's second most users now - only fewer than those of World of Warcraft.

Tanki Online is a massively multiplayer online action game based on Adobe Flash technology. Players fight each other online, earning money and advancing their careers, with their tank!

Tanki Online is one of the latest 3D browser based games. With great graphics and simple control, this tank-shooting game has spread fast since its first release. But there are also some problems challenging Tanki Online. The simple gameplay content may get boring after hours of play. And the shooting tracks should also be improved. Anyhow, Tanki Online is still one of the 3D browser games worth a try.

Tiger Woods PGA TOUR Online is a web based sports game with several world class championship courses, such as Pebble Beach, TPC Sawgrass and St. Andrews.

Unlike most online text-based sports managers, Tiger Woods PGA Tour Online is a real-time action golf game based on the browser. Although Tiger Woods get into trouble these days, this game is still one of the best online golf games.

Earth Eternal is a high-quality, free, 3d MMO. It takes place in an epic fantasy world full of fantastical monsters, beautiful environments, and whimsical touches.

This is undoubtedly the browser-based game most similar to World of Warcraft. The settings are unique - all the races in EE are animal based. So if you want to taste a weird world with familiar control and interface on your browser, this game must be your choice.