Immersion Pack: Europa Universalis IV - Origins enhances the gameplay of the base game with a wealth of new features designed to deepen the simulation experience. This expansion introduces the Jewish religion, allowing Ethiopian Jews of Beta Israel to participate, along with nine distinct religious characteristics that empower players' national strengths. The addition of new regional mission trees specifically tailored for minor powers in Central, East, and West Africa, as well as the African Horn, provides fresh strategic possibilities for players.

In addition to the new missions, players can enjoy four new army sprites representing the Congo, Great Lakes, Southern Africa, and Bantu nations, adding visual diversity to the game. The expansion also introduces two new missionary models, featuring African Coptic and African Fetishist animations, enhancing the cultural richness of the gameplay. Overall, this expansion offers a robust set of content that enriches the historical simulation experience in Europa Universalis IV.