🔄 The Three Ages
Every game of Civilization VII tells a story across three historical periods, each with its own civilizations, technologies, civics, units, and challenges. Your leader is the thread that connects them – they persist from the first turn of Antiquity to the final turn of the Modern Age.
Age flow
| Age | Historical Period | Key Themes | Crisis Types |
|---|---|---|---|
| Antiquity | Ancient & Classical | Founding, early expansion, first wonders, initial religion | Plague, Revolt, Invasion |
| Exploration | Medieval & Renaissance | Trade routes, Distant Lands, religion, naval expansion | Plague, Wars of Religion |
| Modern | Industrial & Contemporary | Industrialization, ideology, victory races, global conflict | None – the Age ends in Victory, not a transition |
Age Progress
The Age Progress tracker – the trophy icon in the upper-left corner – advances toward 100% as the game runs. Read it as a clock, not a scoreboard: it measures how much of the Age's allotted time has elapsed, not how much your civilization has accomplished. Two things move it:
- Turns passing. This is the main driver by a wide margin. Every turn advances the Age on its own, whatever anyone does with it.
- Future Tech and Future Civic research. Once the standard trees are exhausted, researching Future entries pushes the Age along faster than turns alone, shortening the time remaining.
As Age Progress approaches 100%, a Crisis triggers and the game transitions to the next Age. See Crises, and Reading the Age Clock for planning against the turns you have.
Most Age Progress comes from passing turns, making each Age broadly predictable. Treat the meter as a budget for anything you need to finish before the transition.
Future Tech and Future Civic research adds to the shared Age meter. In Modern, faster-than-expected progress may mean another player is repeating Future research and bringing the game closer to its end.
What carries over
| ✅ Carries Over | 🔄 Resets |
|---|---|
| Your Leader and their Attributes | Tech & Civic Trees (replaced with the new Age's trees) |
| Attribute Points accumulated | Military Units (replaced by new Age equivalents) |
| Mementos | Social Policies – a new set each Age, except Traditions |
| Dedications (up to 3, selected during transition) | Unique Units & Infrastructure (unless Time-Tested with Syncretism) |
| Some Persistent/Ageless Buildings | Most Age-specific Buildings (become Warehouses) |
| Settlements, Population, Territory | Ongoing Crises |
| Buildings and Wonders already constructed | City status – most Cities revert to Towns (see below) |
| Commander XP & Promotions | Active Endeavors |
| Great Works (Codices, Relics) | Triumphs (Age Progression) |
Two consequences worth internalizing: Commander XP and Promotions persist, and each Commander carries up to four units through the transition – one reason to own Commanders before an Age ends. Early Commander investment compounds across the entire game (see Military & Combat). Trade Routes are severed at every transition, so re-establishing them must be part of your transition plan (see Diplomacy, Influence & Trade). The strategic habit this table rewards – compound the durable, spend the disposable – is set out in Invest in What Persists.
⚠️ Most of your Cities become Towns
This is the transition rule that catches people out, and it is worth planning around an Age ahead.
At an Age Transition, your Capital stays a City and your other Cities revert to Towns. The game is not asking whether a settlement is developed enough to stay a City – it is asking whether that settlement is one of the ones being retained as a City. If it is not, down it goes, no matter how large or well-built it is.
What you keep. The settlement itself, its Population, its territory, and its constructed Buildings and Wonders all remain. What changes is its status, and therefore what it can do: a Town has no production queue, converts its Production into Gold, and cannot build Wonders or run Specialists. See Improving Cities & Towns.
How to keep Cities as Cities. The lever is your Dedication choice at the transition – certain Dedications preserve Cities from the previous Age. Because you pick Dedications during the transition, you are not forced to commit to which settlements matter before the Age ends. See Triumphs and Dedications.
The reversion is not purely a loss, and skilled players use it deliberately. Converting a Town into a City costs Gold that rises with the number of Cities you already hold and falls as the Town grows – so letting your sprawl revert to large Towns and then re-converting only the two or three you actually need is often cheaper than trying to preserve all of them. Decide what each settlement is for in the next Age, not what it was in the last one.
⚠️ A related trap: changing your Capital converts your old Capital into a City and turns every other settlement into a Town – a free upgrade for the old Capital, but a reset for everything else. Do it deliberately, not casually.
The choice: Apex vs. Time-Tested
At each Age Transition you face the most consequential decision in the game: evolve into a new Apex civilization, or stay as your current civilization (Time-Tested).
| Feature | Apex Civilization | Time-Tested Civilization |
|---|---|---|
| Unique Units | Full set (1 Military, 1 Civilian) | None (uses generic Age units) |
| Unique Infrastructure | Full (Unique Improvement, or Unique Buildings + Quarter) | None (unless gained via Syncretism) |
| Civic Tree | Full Unique Civic Tree with unique Traditions & associated Wonder | Generic Attribute-based Civic Tree with Syncretism node |
| Syncretism Access | No | Yes – adopt another civ's Units or Infrastructure, or choose Affirmation |
| Associated Wonder | Yes (faster to construct) | No |
The Age Transition decision tree
Time-Tested runs reward players who plan ahead. If you intend to carry one civ across all three Ages, study its Syncretism options in each non-Apex Age before you start the game. The right combination can make a Time-Tested civ as powerful as an Apex one – and sometimes stronger, because you keep your established infrastructure and skip the reset that comes with evolving. Full detail in Playing Time-Tested.
Playing Time-Tested
A Time-Tested civilization trades its unique content for continuity – and gains one thing an Apex civ never gets.
What you give up. Unique Units become generic Age-appropriate ones, you lose Unique Buildings, Improvements, and the associated Quarter, your Unique Civic Tree is replaced by a generic Attribute-based tree, and you forfeit the construction bonus on your civ's signature Wonder.
What you keep and gain. Your existing infrastructure, territory, and accumulated bonuses carry on undisturbed. Your Unique Ability persists, often scaling upward each Age. And the generic Civic Tree carries Traditions tied to your Attributes plus the Syncretism node – the choice below, which Apex civilizations never see.
Syncretism – borrowing from another civilization
Researching the Syncretism node presents three mutually exclusive options: adopt another civilization's Unique Military Unit, adopt its Unique Infrastructure, or take Affirmation – a unique Tradition plus a free Tradition slot, deepening your own identity instead of borrowing.
You cannot borrow from just anyone. Your civ may only draw on civilizations with historical, geographic, or strategic ties, and those associations are fixed by the game. Spain in Antiquity can borrow from Rome or Carthage, its Iberian predecessors. Han China in Exploration can borrow from Ming China, its direct successor. Inca in the Modern Age can look to Mexico or America.
Notable Syncretism combinations
| Time-Tested Civ | Non-Apex Age | Borrows from | What you get | Why it works |
|---|---|---|---|---|
| Inca | 🏭 Modern | Nepal (Infrastructure) | Mountain tiles become workable, stacking with Inca's existing mountain bonuses | Mountains turn into powerhouse tiles; compounds with Pachacuti's Earth Shaker |
| Spain | 🏺 Antiquity | Rome (Infrastructure) | Roman buildings and Quarter | Strong early infrastructure to survive the Ages before Spain's Apex arrives |
| Mongolia | 🏭 Modern | Prussia (Military) | Prussia's Unique Military Unit | Industrial-age teeth for a cavalry empire |
| Egypt | ⛵ Exploration | Abbasid (Infrastructure) | House of Wisdom and its associated buildings | Science density for a civ that is otherwise all Culture and Production |
| Greece | 🏭 Modern | French Empire (Military) | The French Empire's Unique Military Unit | Military teeth for a diplomatic empire in the final Age |
When to take Affirmation instead. Choose it when your civ's identity already covers your strategic needs, when no available partner offers anything that fits your plan, when you are running a Tradition-heavy build where the free slot outperforms any borrowed asset, or when you want maximum historical authenticity in a roleplaying run. See Strategic Combinations and Historical Combinations.
Your Syncretism options are shown at game setup, so you can see which civilizations you can transition into before turn one and plan the whole campaign around it. Knowing exactly which Units or Infrastructure they offer lets you plan a full three-Age strategy before you found your capital. See Strategic Combinations.