Your First Session in EU5: The Day-One Checklist

Every nation guide on this site opens with a “before you unpause” section, and if you read three of them side by side a pattern jumps out: the specifics differ, the checklist doesn’t. This page is that checklist — the universal first session, for any nation — followed by the first-decade loop and the how-do-I questions everyone asks in week one.

Before you unpause: six checks

1. Read your situation panel. If your nation starts inside a scripted situation — Rise of the Turks, the Hundred Years’ War, an Iberian reconquista — that situation’s actions and goals are your campaign’s table of contents. Byzantium’s whole opening is shaped by two disasters; the Ottomans’ by a situation scoreboard. Know which story you’re in before you make plans.

2. Settle the capital. Capital placement drives proximity, and proximity drives control and cost. Day one is when moving is cheapest — Castile players argue about where (Sevilla versus Toledo) but nobody argues about when. If your capital is already where your population and economy concentrate, leave it; if not, decide now.

3. Point the cabinet at stability. Two seats on legitimacy and stability is the standard defensive opening across every guide we publish. Growth jobs — conversion, integration — come once you’re safe. Hire one advisor at most; their salaries compound.

4. Triage the economy. In order: fix shortages (a building without inputs is a subsidy to nowhere), then invest in construction goods — wood, glass, masonry — because they discount everything you build for the rest of the game, then develop whatever your nation is uniquely good at. Turn off or tear down buildings ticking upkeep in territory you barely control.

5. Pick rivals like you’re picking wars. Rival the countries you actually intend to fight in the first two decades — rivalry feeds your diplomacy and your casus belli math. And deliberately don’t rival the country you’ll want to union or ally later; Castile’s guide holds Portugal in reserve for exactly this reason.

6. Set automation honestly. Open the gear menu and automate everything you’re not actively learning. The one system worth taking manual early is trade, whose automation has documented blind spots around input goods and profit maximization.

The first-decade loop

Play the opening ten years as a repeating cycle rather than a plan:

• Parliament session → convert it into casus belli for your next one or two targets (this is the standard CB engine across our guides).
• Situation actions → if you have a situation, spend its actions; they’re usually underpriced (the Ottomans’ Press Claims discount is the archetype).
• One alliance that matters → max relations, profess trust, then ally the neighbor who scares your enemies — France for Castile, nobody at all for the Ottomans. One great ally beats three mediocre ones.
• No fair fights → engage smaller armies, on your terrain, at river crossings, near your forts. Quality over quantity: pushing military quality past 10 unlocks professional armies, the first real military power spike.
• Watch three gauges → estate satisfaction (50+), control in new conquests, and antagonism. Each of the common death spirals in our nation guides starts with one of these three sliding while the player looked at the map instead.

When something goes wrong anyway

It will — that’s the genre. The FAQ below covers the specific how-do-I questions with the highest search traffic among new players; for anything nation-shaped, each nation guide carries its own death-spiral table with symptoms, causes, and fixes. And remember the meta-rule from the first page of this series: a first campaign that reaches 1390 solvent and intact has succeeded. Restart shame is not a mechanic.