I thought I would share some more insight into Emperor Wars economics, since the tech tree is more complex per the creator of the Reality Mod with the idea that the march out of the Dark Ages should be slower, I incorporated the obvious lack of Merchant Guild involvement in Emperor Wars that was missing from the vanilla EFS.
The surviving Corporations of the Collapse of the Second Republic fled to Leaguehiem (which wasn't called that during the 2nd Republic but was renamed later, also a large group of Corporations also fled to Ishktar) as a haven for capitalism, democracy, and technology. Since the noble houses and the church was about to crush them for good they converted over time from Corporations to Guilds to protect their technological secrets. There are 5 major guilds, and hundreds of smaller guilds and Leaguehiem is ruled by a elected character known has the Leaguemeister that can be captured and is worth 10,000 firebirds per turn.
Top 5 Guilds: (Most accessible through Economics and Macroeconomics technology either cost gems to purchase and have high maintenance costs to keep any one house from just recruiting hundreds of Dreadnaughts)
Reeves Guild - Bankers, Lawyers, and Advisors non combat units that just produce money when they are recruited
The Charioteers - Pilots, Transport Spaceships, and Space Warships usually expensive to maintain but available if a houses royal navy is decimated or destroyed
The Muster (aka Chainers for the ball and chain logo & slave trade) - This is the remnants of the Corporations of Second Republic Military and gives a player access to expensive high cost mercenaries early on in the game, and to slave labor for build cities, slave labor also produces money because you are not paying them
The Scravers - Scavengers that are basically the mafia and criminals but are protected by the League can only be built in the Shield, this guild comes from the slums and since a planetary shield is usually at the center of a city cluster seemed like a logical place for the slums
Supreme Order of Engineers - Engineers and Construction Workers used for building and are hired in factories usually cybernetic types
In the game there are minor guilds that produce money or build cities: Architect Guild more upper class than the Engineers, Courtesan Guild, Entertainment Guild, etc.
This is why the game has a larger return in money in the beginning it may seem like alot early on but when all of the houses starts purchasing League Units the budget can start get really tight, really fast so financial management is a must after about turn 10
Please let me know if you have any questions?