We thank all of our colleagues participating in the AGORA Project for their collaborative spirit, which has allowed the AGORA Collaboration to remain strong as a platform to foster and launch multiple science-oriented comparison efforts. We also thank Volker Springel for providing the original versions of Gadget-3 to be used in the AGORA Project. We thank the UCSC Foundation Board Opportunity Fund for supporting the AGORA Project papers as well as the AGORA annual meetings. This research used resources of the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility supported by the Office of Science of the U.S. Department of Energy under contract No. DE-AC02-05CH11231 using NERSC award HEP-ERCAP0024062. S.R.-F. and O.A. acknowledge support from the Knut and Alice Wallenberg Foundation, the Swedish Research Council (grant 2019-04659), and the Swedish National Space Agency (SNSA Dnr 2023-00164). S.R.-F. also acknowledges financial support from the Spanish Ministry of Science and Innovation through projects PID2020-114581GB-C22, PID2022-138896NB-C55, and PID2021-123417ob-i00. J.K. acknowledges support from the Samsung Science and Technology Foundation under project No. SSTF-BA1802-04. His work was also supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT; Nos. 2022M3K3A1093827 and 2023R1A2C1003244). His work was also supported by the National Institute of Supercomputing and Network/Korea Institute of Science and Technology Information with supercomputing resources including technical support, grants KSC-2020-CRE-0219, KSC-2021-CRE-0442, and KSC-2022-CRE-0355. A.G. would like to thank Ruediger Pakmor, Volker Springel, Matthew Smith, and Benjamin Keller for help with Arepo and Grackle. Art-I simulations were performed on the Brigit/Eolo cluster at the Centro de Proceso de Datos, Universidad Complutense de Madrid, and on the Atócatl supercomputer at the Instituto de Astronomía de la UNAM. Ramses simulations were performed on the Miztli supercomputer at the LANACAD, Universidad Nacional Autónoma de México, within the research project LANCAD-UNAM-DGTIC-151 and on the Laboratorio Nacional de Supercm´puto del Sureste-Conacyt. Changa simulations were performed on the Atócatl supercomputer at the Instituto de Astronomía de la UNAM. Gadget3-Osaka simulations and analyses were performed on the XC50 systems at the Center for Computational Astrophysics (CfCA) of the National Astronomical Observatory of Japan (NAOJ), Octopus at the Cybermedia Center, Osaka University, and Oakforest-PACS at the University of Tokyo as part of the HPCI system Research Project (hp190050, hp200041). Arepo simulations were performed on the High-Performance Computing resources of the Freya cluster at the Max Planck Computing and Data Facility (MPCDF, https://www.mpcdf.mpg.de) in Garching operated by the Max Planck Society (MPG). The publicly available Enzo and yt codes used in this work are the products of collaborative efforts by many independent scientists from numerous institutions around the world. Their commitment to open science has helped make this work possible.