A lot of fun online 3D games depended on one's personal preferences. The following are some popular online 3D games for reference: 1 World of Warcraft: This is a massively multiplayer online role-playing game (MMORPG) with rich game content, powerful social functions, and excellent game balance. League of Legends: This is a multiplayer online combat game where players can team up with other players to defeat their opponents through strategy and techniques. PUBG: This is a multiplayer online tactical competitive game where players need to survive and fight against other players on the game map. Fortnite: This is a multiplayer online survival competitive game where players need to build fortifications and fight against other players to protect themselves. 5. Honor of Kings: This is a multiplayer online combat game where players need to team up with other players to defeat their opponents through strategy and techniques. The above games all had high-quality graphics, a smooth gaming experience, and rich game content. You could choose a game that suited you according to your preferences.