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Lego Ideas is LEGO's crowdsourcing platform for turning fan-designed models into potential commercial LEGO sets.

Last updated October 14, 2026

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Overview

Lego Ideas is a fan-participation platform operated by The LEGO Group, with technology and community-management support historically associated with Chaordix. It allows members of the public to propose potential LEGO products by publishing a project page that combines a written concept with a digital or physical brick-built model. Other users support projects through the platform, and projects that reach the required support threshold become candidates for formal review by LEGO. The service began in 2008 under the name LEGO CUUSOO. It was created as an international extension of CUUSOO, a Japanese crowdsourcing initiative whose name comes from a Japanese word associated with imagination or fantasy. The platform initially operated as a beta program and gave LEGO a structured way to test demand for ideas generated outside its internal design teams. In 2014, it was renamed LEGO Ideas and moved to the Chaordix software platform, marking a broader international identity and a more developed community model. The defining mechanism of Lego Ideas is its support-and-review system. A submitted project must attract support from distinct users, with 10,000 supporters serving as the principal eligibility threshold for LEGO review. The platform has adjusted the time limits and intermediate support requirements over time. Under a later staged system, projects generally needed to reach an initial level of support within their first 60 days, followed by progressively larger targets before the final 10,000-supporter threshold. Qualified projects are grouped into periodic review rounds, traditionally associated with deadlines in January, May, and September. Reaching the threshold does not guarantee production: LEGO evaluates each project for commercial potential, safety, building quality, licensing feasibility, age appropriateness, legal considerations, and consistency with its product strategy. When LEGO approves a project, the original concept is developed by LEGO's professional designers. The released product may differ materially from the submitted model because the company adapts the design for structural stability, building experience, part availability, packaging, instructions, intellectual-property requirements, and manufacturing constraints. The final product is sold under the LEGO Ideas banner. Recognized fan designers receive credit in the set materials, ten copies of the final set, and a royalty equivalent to 1% of the product's net sales under the program's stated terms. The platform has supported both original concepts and projects based on existing intellectual property. Successful examples have included science-fiction, architecture, vehicles, historical subjects, popular television, and other entertainment properties, although licensing and content rules have progressively narrowed what can be submitted or approved. LEGO has rejected or restricted projects involving adult themes, drugs, weapons represented in certain ways, religious references, post-Second World War warfare, first-person-shooter properties, rival toy-company intellectual property, excessive reliance on new molds, and licenses already covered by existing LEGO product relationships. Later rules also introduced limits on project size and restrictions on duplicating properties already represented by LEGO Ideas or other LEGO lines. Lego Ideas has become a prominent example of community-driven product development in the toy industry. It gives adult fans and younger builders a public route into the LEGO product-development pipeline, while providing LEGO with visible demand signals and a source of concepts that may not emerge from conventional theme planning. At the same time, its review process demonstrates that community popularity is only one factor in commercialization. The program remains an active LEGO sub-brand and online community, combining fan recognition, licensed-product discovery, contests, and limited experimental initiatives with the sale of officia…

History

Lego Ideas developed from CUUSOO, a Japanese crowdsourcing concept that LEGO adapted for fan-generated product proposals. The international program began in 2008 as LEGO CUUSOO and initially operated as a beta service. Its basic premise was that LEGO fans could present original models and gather public support before LEGO considered whether a concept should enter the company's product-development process. The early platform established the central relationship between fan creativity and measurable community demand. A project became eligible for review after reaching 10,000 supporters, although qualification was never equivalent to approval. LEGO retained the right to reject a project because of manufacturing complexity, safety, market fit, licensing problems, inappropriate subject matter, or conflicts with existing product lines. This distinction allowed LEGO to invite broad participation without surrendering control over design, production, or brand standards. In 2014, the service was renamed LEGO Ideas and transferred to the Chaordix software platform. The change gave the program a clearer LEGO identity and supported its growth as an international community. Projects were presented through public pages containing descriptions, images, and models, allowing supporters to discover, discuss, and promote concepts. The review process was organized around periodic qualification deadlines, traditionally occurring three times a year. As participation increased, LEGO refined the platform's rules. Projects originally had wider freedom of subject and format, but later submission policies restricted content and technical approaches that created legal, safety, or brand concerns. The rules addressed such matters as adult material, certain weapons, drugs, religious references, post-Second World War warfare, first-person-shooter properties, competing toy-company intellectual property, and concepts requiring too many newly manufactured molds. LEGO also limited project size and excluded some properties already represented by LEGO products or covered by existing licensing arrangements. These changes reflected the difference between an attractive fan concept and a viable mass-market construction set. The development stage begins after a project passes community support and survives LEGO's review. LEGO designers then redesign or refine the model for production. This can involve changing proportions, substituting elements, improving structural integrity, simplifying construction, adapting the model to available parts, and resolving intellectual-property or packaging requirements. The final set is credited to the fan designer, who receives ten copies and a 1% royalty on net sales according to the program's published terms. Lego Ideas expanded beyond the standard submission pipeline through contests and experimental programs. Fan competitions have offered LEGO prizes and, in selected cases, the opportunity for a winning design to become a promotional gift-with-purchase set. In 2022, LEGO introduced an invite-only Test Lab challenge focused on digitally designed models built from a limited palette. Nine designs were selected in January 2023 for online release during that year. The service experienced particularly rapid growth during the COVID-19 lockdown period. The 2020 review rounds recorded unusually high numbers of projects reaching the 10,000-supporter threshold, and LEGO linked the increase partly to the greater amount of time people spent at home. A similarly large qualification count continued into the first 2021 review. The growth increased the importance of screening, review capacity, and submission rules. Lego Ideas remains a hybrid of fan community, market-research channel, licensing discovery mechanism, and product brand. Its commercial output is selective rather than automatic: most supported projects do not become sets, while approved projects are professionally redesigned and manufactured by LEGO. The program's continuing appeal comes from giving builders a visible role in product discovery while preserving LEGO's control over quality, intellectual property, safety, and commercial execution.

  • 2024

    The maximum project size is increased

    [1]

    An update raises the maximum permitted element count from 3,000 to 5,000, adds a 200-element minimum, and introduces a minifigure-to-element ratio.

  • 2023

    Nine Test Lab designs are selected

    [1]

    Nine designs are chosen for online sale during 2023 through the Test Lab initiative.

  • 2022

    Test Lab challenge opens

    [1]

    LEGO Ideas launches an invite-only experimental challenge for digitally designed models made with a limited palette.

  • 2021

    The first review reaches another record

    [1]

    The first 2021 review includes 57 qualifying projects after one project is removed because of an intellectual-property conflict.

  • 2020

    Record qualification volumes are recorded

    [1]

    Twenty-six projects qualify for the first 2020 review and 35 for the second, with LEGO linking the surge partly to pandemic lockdowns.

  • 2016

    Submission standards are tightened

    [1]

    LEGO introduces additional rules covering content, project size, weapons, duplicate properties, and other eligibility concerns.

  • 2015

    A review round selects no projects

    [1]

    The first 2015 review, announced in October, produces no selected projects after LEGO rejects the qualifying concepts for various reasons.

  • 2014

    The program becomes LEGO Ideas

    [1]

    The service is rebranded as LEGO Ideas and transitions to the Chaordix software platform.

  • 2008

    LEGO CUUSOO launches

    [1]

    LEGO begins the international crowdsourcing program under the LEGO CUUSOO name, allowing users to propose potential LEGO products and collect public support.

Products and positioning

A community-powered LEGO product-development platform that converts fan creativity and demonstrated audience support into officially designed and commercially released LEGO sets.

  • Construction sets · 2008

    LEGO Ideas fan-designed sets

    The core offering consists of official LEGO sets developed from public submissions that reach the support threshold and pass LEGO's internal review. The final products cover original concepts and licensed subjects, and are professionally redesigned for structural quality, building experience, manufacturing, safety, and legal compliance. Fan creators receive attribution and program benefits when their designs are produced.

  • Promotional and community products

    LEGO Ideas contests

    Contests invite fan designers to create models around specified themes or briefs. Prizes may include LEGO products and, for selected competitions, the possibility that a winning design will be developed as a promotional gift-with-purchase set.

  • Experimental digital-design sets · 2022

    LEGO Ideas Test Lab

    Test Lab was an invite-only experiment focused on digitally designed models using a limited element palette. Nine designs were selected in January 2023 for online purchase during that year, providing a smaller-scale test of community-created products outside the standard review pipeline.

Marketing campaigns

  • 2022LEGO Ideas Test Lab Challenge

    Global online community

    LEGO Ideas invited selected fan designers to create digitally designed sets from a limited palette of elements, testing a controlled route from community design to online retail.

    Outcome. Nine designs were selected in January 2023 for release through LEGO's online store during 2023.

  • LEGO Ideas fan contests

    Global online community

    The platform runs themed competitions for fan designers, offering LEGO prizes and, in some cases, a route for the winning concept to become a gift-with-purchase product.

    Outcome. The reference material records six competitions awarded with a prize of this type, but does not provide a complete campaign-by-campaign list.

Brand decisions

  • 2024

    Expansion of permitted project sizeStrategy

    Background

    The platform updated its technical submission framework as fan projects and model complexity continued to develop.

    Action taken

    LEGO increased the maximum element count from 3,000 to 5,000, established a 200-element minimum, and added a minifigure-to-element ratio.

    Aftermath

    The revised limits permitted larger submissions while adding more specific controls over model composition.

  • 2022

    Launch of the Test Lab experimentProduct launch

    Background

    LEGO Ideas was testing additional ways to use fan creativity and digitally created models beyond the conventional 10,000-supporter review path.

    Action taken

    LEGO opened an invite-only challenge requiring designs to use a limited element palette.

    Aftermath

    Nine designs were selected for online sale during 2023.

  • 2016

    Tightening of project eligibility rulesStrategy

    Background

    Growing submission volumes and repeated qualification of concepts that LEGO could not produce created a need for clearer screening standards.

    Action taken

    LEGO restricted project size and excluded or limited categories involving certain weapons, adult content, inappropriate subject matter, duplicate LEGO Ideas properties, and other feasibility or brand concerns.

    Aftermath

    The changes reduced the range of eligible concepts while making the review pipeline more compatible with LEGO's manufacturing, licensing, and audience requirements.

  • 2014

    Rebrand and platform transitionStrategy

    Background

    The original LEGO CUUSOO service was evolving from a beta-style initiative into a broader international fan platform.

    Action taken

    LEGO renamed the service LEGO Ideas and moved it to the Chaordix software platform.

    Aftermath

    The program gained a distinct LEGO identity and continued as the company's principal public crowdsourcing route for potential fan-designed sets.

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