Motivation: Foresight methods are increasingly recognized as essential for decision-making in complex environments, particularly within development and research settings. As foresight methods continue to gain prominence for decision-making, their application in these settings grows. Funders and policy-makers can benefit from the experience of transformative foresight practitioners and researchers who are skilled in designing novel ways to envision alternative and diverse development futures. Purpose: The Seeds of Good Anthropocenes (SoGA) initiative has experimented with transformative foresight since its inception in 2016. We position SoGA within the framework of Minkkinen et al. (2019); we present its transformative capacity through participatory visioning; and we explore how foresight methods can shape strategic development options. Approach and methods: We draw lessons from how SoGA, used extensively in various contexts around the world, has introduced experimental transformative foresight to deal with diversity and complexity. We describe the transformative foresight processes in detail. Findings: SoGA exemplifies how transformative foresight can support policy and change initiatives by providing participants, planners, and decision-makers with opportunities to reinforce the collaborative and transformative objectives of their policy and convening practices. Such engagement not only deepens the strategic impact of policies, it also encourages a more inclusive and participatory approach to policy development, aligning with broader goals for sustainable and impactful change.