This repository contains the complete code and dataset of the European energy system model PERSEUS-PtX, a member of the PERSEUS model family. The model enables the analysis of European energy system transformation pathways with a particular focus on hydrogen and reactive metals. All components required for model runs and for the production of results, including processed output diagrams, are included. Background information on the model’s development, key features, and detailed instructions for execution and citation are provided in the accompanying README file. Funding is gratefully acknowledged, including support from the following organizations: Stiftung Energieforschung Baden-Württemberg, European Institute for Energy Research (EIFER), German Federal Ministry of Economic Affairs (BMWi/BMWK/BMWE), German Federal Ministry for the Environment, Climate Protection, Nature Conservation and Nuclear Safety (BMU/BMUB/BMUV/BMUKN), German Federal Ministry of Education and Research (BMBF), Baden-Württemberg Ministry for the Environment, Climate and Energy Sector, VolkswagenStiftung, Helmholtz-Gemeinschaft Deutscher Forschungszentren e.V., European Commission, Interreg, Deutsche Forschungsgemeinschaft (DFG), Projekt- und Studienfonds der schweizerischen Elektrizitätswirtschaft, BKW Energie AG, and Kraftwerke Oberhasli AG.