Core technologies for virtual worlds (RIA) (Virtual Worlds and Photonics Partnerships)
HORIZON Research and Innovation Actions
Basic Information
- Identifier
- HORIZON-CL4-2025-03-HUMAN-14
- Programme
- DIGITAL - CNECT
- Programme Period
- 2021 - 2027
- Status
- Closed (31094503)
- Opening Date
- June 10, 2025
- Deadline
- October 2, 2025
- Deadline Model
- single-stage
- Budget
- €10,000,000
- Min Grant Amount
- €5,000,000
- Max Grant Amount
- €5,000,000
- Expected Number of Grants
- 2
- Keywords
- HORIZON-CL4-2025-03-HUMAN-14HORIZON-CL4-2025-03Computer gamesComputer graphics, computer vision, multi media, computer gamesHuman computer interaction and interface, visualization and natural language processingWearable technologies
Description
Proposals are expected to contribute to developing core technologies for Virtual Worlds, with a focus on better, more realistic and more performant interaction and immersion, at application and components levels. The following outcomes are expected:
- Area A: Better and more realistic immersion through multimodal interaction. Project results are expected to contribute to the following expected outcome:
- Improvement of the multimodal immersion experience combining eXtended Reality with advanced and innovative technologies.
- Area B: Innovative photonics technologies for projection, sensing and perception in virtual worlds. Project results are expected to contribute to the following expected outcome:
- Improved performance of microdisplays or sensing devices serving Virtual Worlds by using innovative Optics and Photonics technologies.
Proposals are expected to focus on either Area A or Area B. The area should be clearly identified within the proposal. Special attention will be given to proposals (whether Area A or Area B) including transdisciplinary research in order to deliver and enhance uptake of suitable, accurate, ethical and safe solutions.
Proposed applications should aim at increasing awareness, acceptance and adoption of virtual worlds applications across sectors.
Scope:Virtual worlds will impact the way people live, work, create and share content, the way public administrations interact with citizens as well as the way businesses operate, innovate, produce and interact with customers.
Multimodal interaction and immersion are key dimensions of Virtual Worlds and will be supported by innovative optics and photonics technologies to achieve the full potential of Virtual Worlds core technologies.
A broader adoption of Virtual Worlds will need better and more realistic immersion and interaction, mixing modalities, sensors and actuators for an ever-improved user experience: touch, smell, haptics, etc will be better stimulated, bringing users closer to real-world sensations, serving Virtual Worlds.
Many challenges remain to be addressed to realize optics and photonics technical solutions that offer high-performance, excellent visual quality, high-quality user experience, and sustainable services and devices, for head-mounted displays (HMD), autostereoscopic displays or sensing devices.
Coupled with display and sensing technologies, algorithms and metrics should be considered to exploit the underlying light (transportation) models given the utilized modality and address e.g. scene representation, content generation, compression, transmission, content reconstruction, content-to-display adaptation, or rendering. Moreover, the quality of integration, both from a user and technological perspective, will be essential for a broad adoption of Virtual Worlds.
The Area A proposals under this topic should develop and demonstrate novel applications for Virtual Worlds that combine several modalities and aim to provide seamless and more realistic immersive interactions. Proposals should investigate novel scientific approaches or push the limit of existing ones to improve the synchronization and integration of the different modalities.
Proposals should focus on an enhanced use of multimodal technologies, integrating at least two modalities within an extended reality application. Modalities include haptics and force-feedback, vision, touch, smell, speech, etc.
The Area B proposals should address the development and integration of advanced innovative and high-performance Optics and Photonics technologies for display and sensing devices serving Virtual Worlds.
- For displays further improve current high-end microdisplays regarding power consumption (<1 mW), device efficiency, resolution (8K and beyond, pixel densities > 10kppi), high dynamic range (HDR), colour gamut, contrast and refresh rate holding the promise for truly immersive experiences;
- For sensing devices improve accuracy in diverse lighting conditions and with different eye physiologies.
Special attention should be given to the design and fabrication of suited waveguide optics, holographic elements, diffractive optics, reflective light guides, freeform optics (including micro-optics), or meta-surfaces with optimal optical properties and behaviour; to support the required field of view (FoV), to be lightweight and safe for the user, and provide excellent colour uniformity and high brightness efficiency; to satisfy the use case requirements for both professional use and mass adoption, i.e., be scalable to large volumes and cost-effective; to integrate targeted systems seamlessly into mixed-reality devices without increasing bulk or reducing comfort.
For both Area A and Area B proposals, the quality of integration, both from a user and technological perspective, will be essential for a broad adoption of Virtual Worlds. The proposals should include a focus on human perception and experience, from subjective, objective, and functional perspectives, and take into account EU values such as inclusivity, privacy, security and safety of users and the protection of their personal data, as well as diversity. Solutions should guarantee the privacy and rights of individuals and companies and ensure secure and trustworthy interactions to deliver and enhance uptake of suitable, accurate, ethical and safe solutions.
The Consortium should pay attention to developing solutions that are reliable, robust and interoperable. Proposals should leverage existing open standards and technologies in the domain of eXtended Reality, while contributing to ongoing standardisation work. Applications should be tested and anchored in real world environments and aimed at least one application domain.
We consider that proposals with an overall duration of typically 36 months would allow these outcomes to be addressed appropriately. Nonetheless, this does not preclude submission and selection of proposals requesting other durations.
Proposals should involve the effective contribution of Social Sciences and Humanities (SSH) disciplines and SSH experts, in order to produce meaningful and significant effects enhancing the societal impact of the related research activities.
This topic is implemented through a joint effort from the co-programmed European Partnership for Virtual Worlds and the Photonics Partnership and all proposals are expected to allocate tasks for cohesion activities with both partnerships, including the CSA HORIZON-CL4-2025-03-HUMAN-17: Specific support for the Virtual Worlds Partnership and the Web 4.0 initiative.
Destination & Scope
New ways of working, assisted by technologies for physical or cognitive augmentation (exo-skeletons, digital twins, collaborative AI, virtual and extended reality) will increase efficiency, safety and quality of work, provided they are trustworthy, safe and reliable, as well as human-centric and free from gender, racial and other social biases by design. Within the dynamic context of flexible organisation and process flows, workers will have to be empowered to co-create their new forms of working and collaboration within and across organisations, through participation, social innovation or living labs, where social economy actors and local grassroots initiatives are of particular importance. New job profiles and skills will emerge, often requiring digital competence, in addition to social and green skills (e.g. awareness of impact, circularity options). Continuous learning, through formal training, on-the-job learning or being immersed in virtual worlds, combined with appropriate certification and reward mechanisms can boost the attractiveness of careers in many sectors, including manufacturing. A new dynamic, in the spirit of Industry 5.0, will be brought to the workplace through better human interaction with production technologies, open innovation, supporting young professionals’ innovations in e.g. manufacturing, as well as participation of new actors, such as fablabs. Digital environments and virtual worlds will enable new forms of collaboration in generating new product and process ideas, assisted by digital twins and AI, in an inclusive, trustworthy and ethical fashion.
Just like today’s internet, the future internet will drive industrial, social and cultural innovation. Destination 6 will develop technologies for an inclusive, gender-equal, trustworthy and humancentric internet. This will build on a more resilient, sustainable, and decentralised architecture, empower end-users with more control over their data and their digital identity, and enable new social and business models that respect European values. The destination will also spearhead the use of virtual worlds and digital twins where they can make a real difference. Industrial virtual worlds could increase productivity, improve working conditions and access to work, and address and anticipate skills gaps for highly complex products/services or for safety-critical operations. Smart communities and ‘citiverses’ can empower public authorities and people to fulfil their aspirations. To reach the ambitious goal of achieving trustworthy AI, ‘compliant by design’ with the AI Act – challenges such as accuracy, robustness, transparency and efficiency have to be addressed, along eliminating biases in data entry to assure fairness in light of individual differences, e.g. in gender or age, and intersectional diversity. Increasing the cognitive level of AI systems (like from combining data-driven and symbolic learning) is crucial for their wider uptake and acceptance. Smart ‘technology-for-trust’ (e.g. blockchain for identity and transaction tracking, AI to counter biases, deep-fake recognition, fact checking) will also have a role. The Cluster will focus particularly on generative AI (addressing algorithms, data and computational resources), foundational models and language technologies to gain strategic autonomy in this area. This is expected to trigger a whole range of new applications in entertainment, education and commerce, starting with assisted and virtual content production, and on demand synthetic media. Beyond these, the possibilities in industrial settings (e.g. robotics, training, process planning, quality assurance), in public services and public administrations are largely untapped. Involvement of social sciences and humanities will help bring benefits and respect for European values. Specific measures are needed to allow start-ups and smaller companies to use and benefit from AI, data (including by enabling access to the high-performance computing power needed), photonics and robotics, and to play an active part in developing the next generation of smart technologies within a diverse and open European innovation ecosystem. Similarly, the responsible use of AI in science, research and engineering is going to be key for keeping up the scientific and technological global competitiveness of the EU. These elements will also contribute to the EU’s Apply AI Strategy, a comprehensive approach aimed at establishing Europe as a global leader in the development and adoption of AI, by fostering a vibrant AI ecosystem and making Europe a hub for AI innovation and growth, where world-class AI models are developed and integrated into strategic sectors. This initiative is designed to drive innovation, economic growth, and competitiveness, while ensuring that the benefits of AI are shared by all. The topics related to Generative AI included in this destination will support the implementation of the GenAI4EU initiative included in the AI Innovation Package of 24 January 2024, and constitute an integral part of the broader Apply AI strategy, aiming to create a cohesive and coordinated approach to AI development and adoption, one that promotes European excellence and leadership in this critical field. A well-functioning European ecosystem of digital commons, based on open technologies and driven by European values, and a thriving culture of collaboration and social innovation are essential for ensuring sovereignty, trust and user empowerment. New software engineering techniques are needed that are applicable from core to edge and across the entire software stack to build the open distributed systems that the cluster envisages. AI-driven as well as low-code methodologies will help address shortages of digital skills, increase productivity and allow for point-of-use configuration and personalisation.
This destination is structured around the following headings:
Virtual Worlds
The objective of this heading is to gain industrial leadership in Virtual Worlds technology at large (eg. eXtended Reality technologies and immersive environments), while ensuring the European values of privacy, ethics and inclusiveness. It also aims at advancing immersive virtual experiences, supporting a user-centered Web 4.0, and building a sustainable digital ecosystem within Europe. The efforts will notably focus on advancing immersive experiences, enhancing virtual world technologies, and support the launch of the new European Partnership on Virtual Worlds that will drive innovation, access resources, and foster industry collaboration across the virtual worlds' value chain.
AI-GenAI / Data / Robotics
The GenAI4EU HUB aims to build a vibrant European GenAI ecosystem by fostering collaboration, visibility, and innovation across strategic sectors. This initiative supports the European Commission's AI Office in creating a trustworthy AI ecosystem that maximizes societal and economic benefits. It will coordinate efforts among stakeholders—ranging from local GenAI communities and startups to large industries—enhancing the EU’s GenAI impact and visibility. Additionally, it will monitor the EU GenAI landscape, assess market needs, and disseminate findings to foster a cohesive and innovative GenAI environment. The HUB also aligns with European partnerships like ADRA, ensuring integration with existing initiatives and contributing to the EU’s leadership in AI and GenAI advancements.
Standardisation and Knowledge Valorisation
Linked to the importance of deploying the results of research and innovation in the Union, in order to achieve economic, environmental and social outcomes, a number of topics in this Work Programme will support essential efforts in knowledge valorisation and standardisation; and in improving access to technology infrastructures.
International Cooperation
The proposed international coordination and support actions are aligned with the Commission’s international priorities. They will help build strong international digital partnerships and promote a human-centred digital agenda. International cooperation will further a level playing field and reciprocity while delivering new solutions to digital challenges. Through evidence-based advice and joint actions with leading semiconductor nations like Japan, South Korea, Taiwan, Singapore, the USA, Canada, and India, the aim is to bolster Europe's role in the global semiconductor value chain. This includes guiding the European Commission on research collaborations and policy measures while providing factual insights into emerging technologies and global supply chains. In parallel, proposed actions will focus on strengthening international cooperation in the semiconductor sector and advancing Generative AI (GenAI) initiatives in Africa. The aim would be to empower African societies, particularly rural communities and women, by equipping local technology companies with the tools to leverage GenAI for innovative solutions in key areas, thereby unlocking its potential for social and economic development in Africa.
Eligibility & Conditions
General conditions
1. Admissibility Conditions: Proposal page limit and layout
2. Eligible Countries
are described in Annex B of the Work Programme General Annexes.
A number of non-EU/non-Associated Countries that are not automatically eligible for funding have made specific provisions for making funding available for their participants in Horizon Europe projects. See the information in the Horizon Europe Programme Guide.
3. Other Eligible Conditions
Subject to restrictions for the protection of European communication networks.
Described in Annex B of the Work Programme General Annexes.
4. Financial and operational capacity and exclusion
are described in Annex C of the Work Programme General Annexes.
5a. Evaluation and award: Award criteria, scoring and thresholds
To ensure a balanced portfolio covering the two areas described, grants will be awarded to applications not only in order of ranking but at least also to two proposals that are the highest ranked within each of the two areas described, provided that the applications attain all thresholds.
Described in Annex D of the Work Programme General Annexes.
5b. Evaluation and award: Submission and evaluation processes
are described in Annex F of the Work Programme General Annexes and the Online Manual.
5c. Evaluation and award: Indicative timeline for evaluation and grant agreement
is described in Annex F of the Work Programme General Annexes.
6. Legal and financial set-up of the grants
is described in Annex G of the Work Programme General Annexes.
Specific conditions
are described in the specific topic of the Work Programme.
Application and evaluation forms and model grant agreement (MGA):
Application form templates — the application form specific to this call is available in the Submission System
Standard application form (HE RIA, IA)
Evaluation form templates — will be used with the necessary adaptations
Standard evaluation form (HE RIA, IA)
Guidance
Model Grant Agreements (MGA)
Additional documents:
HE Main Work Programme 2025 – 1. General Introduction
HE Main Work Programme 2025 – 7. Digital, Industry and Space
HE Main Work Programme 2025 – 14. General Annexes
HE Framework Programme 2021/695
HE Specific Programme Decision 2021/764
EU Financial Regulation 2024/2509
Rules for Legal Entity Validation, LEAR Appointment and Financial Capacity Assessment
EU Grants AGA — Annotated Model Grant Agreement
Funding & Tenders Portal Online Manual
Support & Resources
Online Manual is your guide on the procedures from proposal submission to managing your grant.
Horizon Europe Programme Guide contains the detailed guidance to the structure, budget and political priorities of Horizon Europe.
Funding & Tenders Portal FAQ – find the answers to most frequently asked questions on submission of proposals, evaluation and grant management.
Research Enquiry Service – ask questions about any aspect of European research in general and the EU Research Framework Programmes in particular.
National Contact Points (NCPs) – get guidance, practical information and assistance on participation in Horizon Europe. There are also NCPs in many non-EU and non-associated countries (‘third-countries’).
Enterprise Europe Network – contact your EEN national contact for advice to businesses with special focus on SMEs. The support includes guidance on the EU research funding.
IT Helpdesk – contact the Funding & Tenders Portal IT helpdesk for questions such as forgotten passwords, access rights and roles, technical aspects of submission of proposals, etc.
European IPR Helpdesk assists you on intellectual property issues.
CEN-CENELEC Research Helpdesk and ETSI Research Helpdesk – the European Standards Organisations advise you how to tackle standardisation in your project proposal.
The European Charter for Researchers and the Code of Conduct for their recruitment – consult the general principles and requirements specifying the roles, responsibilities and entitlements of researchers, employers and funders of researchers.
Partner Search help you find a partner organisation for your proposal.
Latest Updates
PROPOSAL NUMBERS
Call HORIZON-CL4-2025-03 has closed on 02.10.2025.
440 proposals have been submitted.
The breakdown per topic is:
HORIZON-CL4-2025-03-DATA-08: 18
HORIZON-CL4-2025-03-DATA-09: 3
HORIZON-CL4-2025-03-DATA-10: 1
HORIZON-CL4-2025-03-DATA-11: 4
HORIZON-CL4-2025-03-DATA-12: 3
HORIZON-CL4-2025-03-DATA-13: 76
HORIZON-CL4-2025-03-DIGITAL-EMERGING-01: 4
HORIZON-CL4-2025-03-DIGITAL-EMERGING-02: 18
HORIZON-CL4-2025-03-DIGITAL-EMERGING-03: 40
HORIZON-CL4-2025-03-DIGITAL-EMERGING-04: 4
HORIZON-CL4-2025-03-DIGITAL-EMERGING-07: 28
HORIZON-CL4-2025-03-DIGITAL-EMERGING-08: 2
HORIZON-CL4-2025-03-HUMAN-14: 59
HORIZON-CL4-2025-03-HUMAN-15: 46
HORIZON-CL4-2025-03-HUMAN-16: 34
HORIZON-CL4-2025-03-HUMAN-17: 3
HORIZON-CL4-2025-03-HUMAN-18: 4
HORIZON-CL4-2025-03-HUMAN-19: 6
HORIZON-CL4-2025-03-MATERIALS-46: 17
HORIZON-CL4-2025-03-MATERIALS-47: 70
Evaluation results are expected to be communicated in January 2026.
Please note that due to a technical issue, during the first days of publication of this call, the topic page did not display the description of the corresponding destination. This problem is now solved.
In addition to the information published in the topic page, you can always find a full description of the Destination 6 ("Digital and industrial technologies driving human-centric innovation") that are relevant for the call in the Work Programme 2025 part for "Digital, Industry and Space". Please select from the work programme the destination relevant to your topic and take into account the description and expected impacts of that destination for the preparation of your proposal.