Call for Domains

We are delighted to announce the first Epistemic Planning track of the next International Planning Competition (IPC-26), hosted at the ICAPS 2026 conference in Dublin. It empirically evaluates state-of-the-art epistemic planning systems on a number of benchmark problems. The goals of the track are to promote epistemic planning research, highlight challenges in the epistemic planning community, and provide new and interesting problems as benchmarks for future research.

If you would like to design a domain for the Epistemic Planning track of the competition please contact us before March 5, 2026 (eplanning.competition@gmail.com). An informal email telling us you want to make a submission is enough. We will then collaborate in adapting the domains to suit the track, but we ask you to think about the ability to easily scale problem difficulty. If you don't have a domain yourself, but you can think of someone who might have an interesting planning problem, please share this call with them. The final deadline for domain submissions is set to April 23, 2026.

Domains can be submitted for any level of the track (see main call for a description of the each level). Domains for the Basic and Intermediate tracks should be conformant to the respective action type libraries provided in the official webpage. Domains for the Hard track should instead be submitted together with a compatible action type library. While not necessary, it is desirable for domains to be developed for multiple levels, providing increasingly complex versions of the same domain. Moreover, if a domain-dependent planner (to compute optimal solutions for the submitted domain), or a generator with controllable difficulty are available, please include them in the submission.

We will consider all submissions and select the highest quality subset to be included. The quality will be evaluated on the features of the domain described above (definition of multi-level variations, presence of a domain-dependent planner, presence of a generator). We are aware that participants that submit a domain that is used have some advantage with respect to performance on that domain. We view this as a good incentive for teams to submit high quality proposals.

If you have an epistemic planning domain in mind but have doubts whether it would be appropriate for the track, don't hesitate to contact us!