Cossacks covers almost all of the 'early modern period', however we're missing the 1500s! In the original game we had an expansion which touched upon it slightly with the Swiss nation and their 16th century-based units, however there's a wealth of 16th century things we could implement to the whole game! Many of the nations in Cossacks have a decent history in the beginning of the early modern period, 16th century, which in Cossacks terms, more units! This was an era of many things: The rise of pirates - preying on Spanish treasure ships. Rise of Francis Drake. Spanish armada (and the er, not so good English counterattack) and the Anglo-Spanish war 2nd Battle of Lepanto - Venice and Ottomans fighting with their Galleys and Galleasses Mercenaries - German Landsknechts and Swiss Pikemen The Italian wars Barbary pirates (based in Algiers) raiding European coasts Henry VIII having marital problems Tatars invading Poland Siege of Malta (Knights of Malta vs Ottoman) 80 Years war - the birth of an independent Netherlands And that's just around the European sphere! Plenty of interesting things happening in Asia (lots of Japanese inner conflict plus their invasion of Korea - Turtle ships, plus the Mughal Empire), Middle-East (rise of Safavids - Iran), Africa (Oyo Empire, Kongo Kingdom, Ethiopian Kingdom to name a many few), and America (so many empires/nations here, plus the European colonies!) Coming back to the game-side of things, I would propose the starting age to be the 16th century, with a new building available - the 16th Century Barracks, which would provide new, early units. We would also introduce initially a new nation - Scotland. They have their own units and buildings, until they upgrade to the 18th century, where they become Great Britain (the original England will also become GB in the 18th C too). General units available to most nations: Sword and buckler men (English Targeteer, Scottish Sword and Targes, Spanish Rodeleros, the original Austrian swordsman, etc) Men-at-Arms - the final evaluation of the the knight - heavy cavalry, full armoured, armed with a heavy lance Demi-Lance - a lighter Man-at-Arms, though still considered heavy cav. Half the armour with a light lance. Halberdier - Used to help break up the 'push of the pike' - these units are great against infantry and have a slight advantage against cavalry (not as much as pikes). Unarmoured. Armoured 16th Century Pikemen. Pikemen in this age were well respected and powerful. Musketeers were not the limelight yet! These Armoured Pikemen take longer to train than the 17th c pikemen and more expensive, though they are more armoured and generally more powerful. Arquebusier [Light Infantry]- these soldiers are the earliest 'musketeer' type available. They are armoured and armed with a handheld firearm called the arquebus. The arquebus was a light firearm so their firepower is quite a bit lower than a musket and their range is shorter. These guys do have a sword for emergency melee. They are the fastest training 'shooter' type. 16th century Musketeer - Muskets in this era were heavy and needed a gun-rest to prop them up, however they fired at a longer range and were far more powerful than Arquebusiers. Caliverman [Light Infantry - Skirmisher] - The Caliver were a more refined Arquebus and were even lighter. Calivermen were used as skirmishers. In game they can be put in skirmish (i.e. loose) formation and used to screen your army and scout ahead. Mounted Arquebusier - An early dragoon-like unit. Short range and not particularly powerful, but very handy to pepper enemy forces! These later became known as Harquebusiers. 16th Century Cuirassier - Armoured with firearms and sword. Siege guns - Cannon Royal Heavy field guns - Culverin Light field guns - Sakers, Falconets. Culverin - long range cannon Horse Archers - available to the more Eastern European nations such as Poland. Longbowmen - these were available at the begining of the 16thC and have excellent range and rate of fire, however are costly and take a long time to train. Very weak against armoured units. Crossbowmen - Early 16th C ranged unit. Very weak against armoured units. There are most likely many, many more to list. There's a huge amount of unique unit possibilities here - Border Reivers (Light cav with lance for England and Scotland - available in 17thC too), Landschneckt two-handed swordsman/arquebusier/pikemen (mercs), Stradiots (Albanian merc light cav), Caravels, Carrack, Galleon, Race-built Galleon (English), Swiss Pikemen (mercs), Gallowglass (Scots mercs), Billmen (English melee unit). Lots more to mention.