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Challenges

A new theme every Monday with exactly one rule. On Sunday evening, the top three are decided.

Running now

Lighthouse

No more than 60 bricks.

October 25, 2026 – November 1, 2026 · 0 entries

How to take part

  1. Build a model that fits the theme and follows the rule.
  2. Publish it and tick the challenge box in the dialog.
  3. After Sunday 11:59 pm, the three most popular models get a badge, and everyone who took part gets the “Took part” badge.