Your world should meet the following requirements:

• Review the Documentation on Remixable worlds.
• The remixable world can be a new world or an existing world made remixable for others to use by the Entrant during the duration of the competition and not have been previously entered into any other open source world challenge or competition, sweepstakes, or promotion
• The remixable world must be ORIGINAL to each Entrant (or include content that is in the public domain or that is provided to Entrant by Meta specifically for use in the Contest)
• Be a remixable world made for consumption in Meta Horizon using the Meta Horizon desktop editor tool.
• The remixable world is only built with Meta Horizon tools that are available to the general public and/or available to MHCP members. Use of Meta tools that have not been released to the Meta Horizon Creator Program (MHCP) members or the general public is not permitted.
• Creators can submit their remixable worlds as either mobile-only or compatible with both mobile and VR devices. 
• Must follow Meta Horizon Content Guidelines for 10+, 13+, and 18+ to help keep Meta Horizon a fun and welcoming place for everyone.
• The world must include content that is interactive for mobile players.
• If a project uses any third party tools, code or assets, the participant must be authorized to use them in accordance with any terms and conditions or licensing requirements of the tools, code or assets.
• Comply with all relevant MHCP/Meta policies and terms (e.g., MHCP Program Terms, Community Standards, Conduct in VR Policy, Partner Monetization Policies, Content Monetization Policies, and Meta Horizon Content Guidelines). 
• Must not include: 
  • Any malware, spyware, viruses, or similar harmful code or content
  • Any content that is false, fraudulent, deceptive, misleading, defamatory, libelous (including trade libel), disparaging, harassing, threatening, profane, obscene, pornographic or otherwise adult-oriented, hateful, indecent, inappropriate, or injurious to any party.