
The following is a breakdown of a large selection of formable nations available at the launch of Europa Universalis 5, organized alphabetically.
Europe offers a blend of historical unification projects and intriguing fantasy revivals.
| Nation | Key Requirements | Type |
| Albania | Albanian Culture, Own 75% of Albania, North Epirus, Illyria Provinces | Historical |
| Austria | Danube Bavarian or Southern Bavarian Culture, Own key provinces including Vienna, Linz, and Braunau. | Historical |
| Bavaria | Danube Bavarian Culture, Own 75% of Bavaria region, Own Munich, Not have the Bavarian Share of Land Estate Privilege. | Historical |
| Belgium | Walloon or Low Franconia Culture, Age of Revolutions, Own 75% of Wallonia and Flanders. | Historical |
| Bohemia | Czech or Moravia Culture, Own 75% of Bohemia and Moravia, Own Prague. | Historical |
| Bulgaria | Bulgarian Culture, Own 90% Bulgaria. | Historical |
| Burgundy | Arpitan, Franc-Comtois, etc. Culture, Own 50% of Savoy, Lyonnais, Franche-Comte, Western/Central Switzerland. | Plausible |
| Byzantium | Greek group Culture, Orthodox Religion, Own 50% of Balkan and Anatolia Regions, Own Constantinople. | Historical |
| Celtica | Celtic group Culture, Celtic Traditions Reform, Own 90% Ireland, Wales, Scottish Highlands/Lowlands, Brittany, Cornwall. | Fantasy |
| Croatia | Croatian Culture, Own 50% of Croatia and Slavonia, Own Zagreb. | Plausible |
| Denmark | Danish Culture, Own 75% of Denmark and Skaneland. | Historical |
| England | English Culture or Language, Own 75% of key English provinces. | Historical |
| Finland | Finnish Culture, Own 50% of Finland. | Historical |
| France | French Culture group, Own 75% of France, Own Paris. | Historical |
| Germany | German Culture group, Own 75% of North and South Germany. | Plausible |
| Great Britain | Any British Culture, Own 75% of Great Britain, Hundred Years' War must be over. | Historical |
| Greece | Greek Culture group, Byzantium must not exist, Own 50% of key Greek regions, Own Athens. | Historical |
| Holy Roman Empire | Must already exist with you as a member, Own 75% of North and South Germany. | Plausible |
| Hungary | Hungarian Culture group, Own 75% of key Hungarian regions, Own Pest & Buda. | Historical |
| Ireland | Hibernian Culture group, Lead the Irish High Kingship, Own 75% of Ireland. | Historical |
| Italy | Italian Culture Group, Own 75% of Italy, Own Milano, Florence, Naples. | Plausible |
| Netherlands | Netherlandish Culture group, Own 30% of key low-country regions. | Historical |
| Poland | Polish Culture group, Own 75% of Polish areas, Own Krakow, Warsaw. | Historical |
| Polish-Lithuanian Commonwealth | Polish or Lithuanian Culture group, Own 50% of Polish/Lithuanian areas, Own Krakow, Vilnius, Warsaw. | Historical |
| Prussia | German Culture group, Own 75% of Prussia, Clergy Power under 20%, Noble Power above 20%. | Historical |
| Romania | Romanian Culture group, Own 50% of Wallachia, Transylvania, Moldavia, Own Bucharest. | Plausible |
| Roman Empire | Be Byzantine or own Rome, Christian/Hellenism Religion, Own 75% of vastEuropean/Mediterranean areas, Own Rome & Constantinople. | Fantasy |
| Russia | Russian Culture group, Own 50% of Russia, Ural, Steppe, Own Moscow & Novgorod. | Historical |
| Scandinavia | Scandinavia Culture group, Own 75% of Scandinavia & Iceland. | Plausible |
| Scotland | Scottish Culture group, Own 75% of Scottish Highlands, Lowlands, Herbrides. | Historical |
The game features numerous formable nations across the rest of the globe,focusing on regional consolidation and established empires.
| Nation | Key Requirements | Type |
| Air | Tuareg Culture, Own 75% of Air Area. | Historical |
| Andalusia | Maghrebi or Iberian Culture, Muslim, Own 75% of Iberia Region, No independent non-Muslims in Iberia. | Plausible |
| Arabia | Arabian group Culture, Own 75% of Arabia Region. | Plausible |
| Aztec | Nahua Culture, Nahuatl Religion, Own 75% of Mesoamerica, Own Tenochtitlan. | Historical |
| Bengal | Bengali Culture, Own 80% of Bengal. | Historical |
| China | Chinese group Culture, Middle Kingdom not active, Own 70% of key Chinese regions. | Historical |
| Deccan | Marathi, Kannada, or Telugu Language, Sunni Religion, Own 70% of Deccan. | Historical |
| Delhi | Indian, Iranian, Mongolian or Turkic Cultural groups, Muslim Religion, Own 70% Hindustan, Own Delhi. | Historical |
| Egypt | Not Mamluk, Own 75% of Egypt. | Historical |
| Ethiopia | Agaw, Amhara, etc. Culture, Own 60% of Ethiopia, Own Axum, Lalibela, or Gonder. | Historical |
| Hindustan | Own 70% of the Indian sub-continent. | Plausible |
| Inca | Quechuan Language, Andean Religion, Own 80% of Acamama and Puna. | Historical |
| Kongo | Bantu Religion, Own 50% of West Kongo & Kongo. | Historical |
| Malaysia | Malay Culture, Muslim Religion, Own 90% of Malay Peninsula. | Historical |
| Mughal Empire | Muslim Religion, Iranian, Turkic or Afghani Culture, Own 80% of Hindustan, Own Delhi, Agra, Lahore. | Historical |
| Persia | Iranian Culture group, Own 50% of Persia. | Historical |
| Rum | Turkic Culture group, Muslim Religion, Own 85% of Anatolia. | Historical |
With 114 choices available from the launch, Europa Universalis 5 offers an unparalleled canvas for players to pursue historical fidelity or forge completely new and legendary empires.