1. This contest is open to all regions. Entries must be original and include downloadable design files and photographs of the finished physical project.
2. Entries must have actual 3D structure or real layers made by cutting, folding, assembly, or layering. Flat 3D visual illusions and digital-only renders are not eligible.
3. Cheating, plagiarism, manipulated engagement, and unauthorized third-party IP will result in disqualification.
4. Core Awards are ranked by a combined final score: 50% 3D Creativity & Craftsmanship, 30% Documentation & Reproducibility, and 20% combined Atomm Downloads + Bookmarks. Only valid engagement received during the contest period counts; see Judging Criteria for normalization and tie-breaking rules. Social Sharing Awards follow the separate public-post rules. A participant qualifying for both receives only the higher-value gift-card prize; the other award passes to the next eligible participant.
5. Painted or colored projects are more likely to receive featured showcases or promotional exposure.
6. Winners will be announced on December 4, 2026 (UTC), and contacted via the email address associated with their Atomm account within one week of the announcement. Winners must respond within 30 days of receiving the notification to claim their prize. All Credit rewards will be distributed together after the contest ends, within one week of the winner announcement. These include the 50-Credit Participation Award and, where applicable, the 50-Credit Structure Build bonus. Each participant may receive these Credit rewards only once, for a maximum of 100 Credits.
7. Gift-card amounts are denominated in USD; local currency conversion follows the applicable rate at issuance.