What virtual worlds don't require flash adobe?

Many modern virtual worlds do not require Adobe Flash, as it has been largely phased out due to security concerns. Examples include platforms like Roblox, Fortnite, and VRChat, which run on HTML5 or proprietary engines. Additionally, games and environments built in Unity or Unreal Engine are also Flash-free and accessible directly through Web Browsers or dedicated applications. These platforms often provide rich, immersive experiences without needing Flash.