There are many missing cultures that are considered as influential civilizations or empires in history to be added in the game. 

Here my list of cultures alongside with emblematic units and quarters that should be added into a game with certain eras.

Ancient Era

Chavin (Aesthetic):

- Emblematic unit: ?

- Emblematic quarters: ?

Elamites (Aesthete): 

- Emblematic unit: Levy slingers

- Emblematic quarters: Elamite Ziggurat

Etruscans (Expansionist):

- Emblematic unit: Zilath

- Emblematic quarters: Hypogeum

Jomons (Agrarian) :

- Emblematic unit: Kyudoka Archer

- Emblematic quarters: Torii

Sumerian (Builder):

- Emblematic unit: Vulture

- Emblematic quarter: Sumerian Ziggurat 

Classical Era

Germanic/Germani/Cherusci (Militarist)

- Emblematic unit: Slaganz

- Emblematic quarters: Nemeðaz/Nemedaz

Goguryeo (Builder)

- Emblematic unit: Gaemamusa

- Emblematic quarters: Sanseong

Han Chinese (Expansionist)

- Emblematic unit: Chu-Ko-Nu/Zhuge Nu

- Emblematic quarters: Paper maker

Macedonian (Expansionist)

- Emblematic unit: Hetairoi

- Emblematic quarters: Agora

Scythian (Military)

- Emblematic unit: Scoloti horse archer

- Emblematic quarters: Kurgan

Medieval Era

Heian Japanese (Military)

- Emblematic unit: Yabusame

- Emblematic quarters: Dojo

Kievan Rus (Aesthete)

- Emblematic unit: Druzhina

- Emblematic quarters: Larva

Majapahit (Builder)

- Emblematic unit: Djong

- Emblematic quarters: Candi

Seljuk (Expansionist)

- Emblematic unit: Ghulams

- Emblematic quarters: Nezamiyeh

Swahili (Merchant)

- Emblematic unit: Dhow

- Emblematic quarters: Coral Port

Early Modern Era

Ayutthaya (Merchant)

- Emblematic unit: Chang Suek

- Emblematic quarters: Wat

Ethiopian (Builder)

- Emblematic unit: Oromo Cavalry

- Emblematic quarters: Rock Hewn Church

Imperial Swede (Militarist)

- Emblematic unit: Gustavian Infantry

- Emblematic quarters: Kungliga Akadamien

Portuguese (Merchant)

- Emblematic unit: Nau

- Emblematic quarters: Feitoria

Safavid Persian (Militarist)

- Emblematic unit: Qizibash Askari

- Emblematic quarters: Baazar

Industrial Era

Maratha (Militarist)

- Emblematic unit: Huzurat Cavalry

- Emblematic quarters: Mandir

Meiji Japan (Scientist)

- Emblematic unit: Murata rifleman

- Emblematic quarters: Jinja

Qing China (Merchant)

- Emblematic unit: Green Standard Infantry

- Emblematic quarters: Pavilion

Sioux  (Agrarian)

- Emblematic unit: Sunkawakan

- Emblematic quarters: ?

Tanzimat Ottoman (Builder)

- Emblematic unit: Nizam e Cedit

- Emblematic quarters: Yalı

Contemporary era

Canada (Scientist)

- Emblematic unit: CEF Infantry

- Emblematic quarters: ?

Indonesia (Builder)

- Emblematic unit: Kopasus

- Emblematic quarters: ?

Korean (Aesthete)

- Emblematic unit: ROKA tank

- Emblematic quarters: Chaebol

Baiyuewarrior wrote:

Seljuk (Expansionist)

- Emblematic unit: Ghulams

- Emblematic quarters: Kervansaray

The Caravanseray is already the quarter of industrial Persians. But I suggested the Nezamiyeh a while ago for them.

In term of units, I think than ghulams is a good choice. But another interesting option, are the Sipahi, apparently it was already a thing under late Seljuk Empire, as professional cavalrymen.

Would be interesting to go from Seljuks to Ottomans and having Sipahi, even if it's not the most obvious choice for Seljuks. I would like to find more sources about that. But a turk could probably find texts about the doability of this idea, personally, I didn't find enough evidences.

well a lot of good ideas here. But would be nice to have link or images as references. For exemple : I don't find what is the Chang Suek for Ayutthaya.

Baiyuewarrior wrote:

Imperial Swede (Militarist)

- Emblematic unit: Caroleans

- Emblematic quarters: Kungliga Akadamien

Caroleans are probably too late for the trope of early modern era of the game. IIRC they are at the end of early modern and start of industrial era. But the line infantry with bayonet is in industrial era in the game. An unit related to Gustavus Adolphus seems more "obvious" for early modern period.

Baiyuewarrior wrote:

Portuguese (Merchant)

- Emblematic unit: Nao

- Emblematic quarters: Feitoria

Alternative suggestion for the Nao, to have something else than the portuguese Carrack (which is a generic unit in the game). Or the Caravela, really emblematic of portuguese, but a generic transport ship as Civilizations games. The Caravela di Armada / Caravela Redonda / Square-rigged caravel, a really strong and manoeuvrable warship which could shine in the early part of early modern, as Portuguese shined in naval warfare in the same early period IIRC. A cool and unique design which influenced the future Galeon.

Baiyuewarrior wrote:

Safavid Persian (Militarist)

- Emblematic unit: Qizibash Askari

- Emblematic quarters: Baazar

The bazaar is not a bad choice but not really emblematic of Safavids, and really redundant with the industrial Persians caravanseray. Tbh I think than Caravanseray would have been a good quarter and at the good era for Safavid, instead of industrial Persians ahah

Baiyuewarrior wrote:

Macedonian (Expansionist)

- Emblematic unit: Hetairoi

- Emblematic quarters: Agora

Hetairoi are definitly emblematic, but Macedonians revolutioned warfare with their Phalangites. And Hetairoi job was to cover phalangites flanks. Honestly, tricky choice I don't know what to choose.

Phalangites with their really long pikes, and an Hetairoi Academy quarter could be a compromise ? It's really subjective here, sorry :p

TurkPasha wrote:

In my opinion some cultures should be made for players to play for them as them for several eras, and get a unique / bonus units for those that decides to stay with them for the next era. So if you pick Ottomans in Modern Era, but decide to stay as them, you should get Nizami-Cedit units for the next era. This should only apply to cultures that actually lasted more than 1 era in the game. This would solve the issue naming a civilization multiple times like Early Ottoman vs Late Ottoman, and just give extra unit category for Ottomans if they want to stay as Ottomans in the next era. This could also fix the issue for Huns since in theory they belong in both era periods (since late antiquity is not an era in this game).

The issue with these types of games is that Developers often mix between polities and peoples, so naming nations and units are often a huge mess. Ottomans are a polity but are technically are 'Turkish' peoples, but this is a minor issue. I so far do like the factions, but it is true that some civilizations like Egypt or Persians should be available for all eras, and the first faction that picks them should have the power to continue over them or change faction, so someone else can pick Egypt / Persia in the next era.

Good idea to solve the problem of naming the same cultures in different era like Ottoman, Persian, Swedish and Spanish case.

Swedish will have Gustavian Infantry in Early Modern but when you advance to Industrial, they get Caroleans instead and Modern, Stealth Corvette.

Spanish will have Conquistador in Early Modern and Santísima Trinidad in industrial. 

Baiyuewarrior wrote:

TurkPasha wrote:

In my opinion some cultures should be made for players to play for them as them for several eras, and get a unique / bonus units for those that decides to stay with them for the next era. So if you pick Ottomans in Modern Era, but decide to stay as them, you should get Nizami-Cedit units for the next era. This should only apply to cultures that actually lasted more than 1 era in the game. This would solve the issue naming a civilization multiple times like Early Ottoman vs Late Ottoman, and just give extra unit category for Ottomans if they want to stay as Ottomans in the next era. This could also fix the issue for Huns since in theory they belong in both era periods (since late antiquity is not an era in this game).

The issue with these types of games is that Developers often mix between polities and peoples, so naming nations and units are often a huge mess. Ottomans are a polity but are technically are 'Turkish' peoples, but this is a minor issue. I so far do like the factions, but it is true that some civilizations like Egypt or Persians should be available for all eras, and the first faction that picks them should have the power to continue over them or change faction, so someone else can pick Egypt / Persia in the next era.

Good idea to solve the problem of naming the same cultures in different era like Ottoman, Persian, Swedish and Spanish case.

Swedish will have Gustavian Infantry in Early Modern but when you advance to Industrial, they get Caroleans instead and Modern, Stealth Corvette.

Both Ancient and Classical era needs more choices though, since Asia and Africa really do feel empty via choices variety. For the MENA region these could be added for a region that was named as 'Fertile Crescent'

Ancient Era: Canaanite, Sabaean, Sumerian, Trojan

Classical Era: Numidian, Parthian, Saba (Sabaean could be also for this era)

Hansa (merchant)

Timurids (Expansionist)

Early United States (Agrarian)

Commanche (militarist)

Novgorod (Merchant)

TurkPasha wrote:

Adine wrote:

phoenix0990 wrote:

Hansa (merchant)

Timurids (Expansionist)

Early United States (Agrarian)

Commanche (militarist)

Novgorod (Merchant)

I would argue the Early US should be expansionist  because we did a LOT of expanding hell we bought half the country from France ( Louisiana purchase ) 

I agree, Jeffersonian period was more agrarian but even in that period you had lots of expansion

Well, if you count colonial America its agrarian but its during before Lincoln it can be considered as expansionist.