<p>In 2024, research was solicited by the Regional Natural Park of Martinique (RNPM) to help redefine a shared vision for the re-domestication of feral pigs in Martinique and co-develop production strategies. Since 2016, the RNPM has led a niche market program involving the capture, genotyping, and re-domestication of feral pigs in agroecological systems. Governance changes disrupted stakeholder engagement, pausing the breeding plan. This study aimed to co-design with stakeholder’s innovative re-domestication systems of feral pig based on agroecological principles. A workshop was conducted using the Knowledge, Concepts and Proposals (KCP) method included three phases: (i) knowledge sharing, (ii) concept exploration and (iii) action plan development. A serious card game, based on Forage Rummy^® and adapted for creole pig breeding in Martinique enabled the participants to co-design three action plans balancing conservation and development of the pig population. A roundtable with the main stakeholders illustrated the strengths and weaknesses of the feral pig re-domestication project. Co-designed action plans promote outdoor pig farming system with a diet based on local resources (banana, sugar cane, forage) to supply high-quality products (smoked ham, dry ham) highlighted by labels within a short supply chain (sold at farms, butcher). Stakeholders proposed creating a selection organization independent of commercial structures, to promote genetic diversity, control reproduction and distribute breeding stock to breeders. This study highlights the effectiveness of an original participatory approach that actively engages project leaders and stakeholders in co-developing sustainable breeding strategies. These collaboratively designed scenarios will strengthen the RNPM’s breeding program development.</p>