The online citizen science project Marine Creatures developed within Task 10.4 of the NAUTILOS project in the platform Zooniverse was presented during Session 2 “How to ensure engagement in your Citizen Science project” of the 6th International Marine Science Communication Conference (CommOCEAN 2024). The conference took place on 26-27th November 2024 hosted at the Málaga Oceanographic Centre and organised by the European Marine Board Communication Panel and the Spanish Institute of Oceanography (IEO-CSIC).