I'm proud to present to you a new mod for 0 A.D. called Imperia Vetera. As the mod is based on an alpha that introduced the final original civilization, Romans, it makes sense to name the mod in honor of their ancient language. Imperia Vetera is "Old Empires" in Latin, and the name itself reflects the vision and the source for the mod. Be aware that this is a so-called "retro" mod. It doesn't and it will not, represent the full features of the original game.
Changes when compared to Alpha 9 vanilla.
Siege Weapons overhaul:
Siege weapons are much better at destroying buildings, but much worse at killing organic units. At the same time, all economic and civic buildings are more vulnerable to hack damage.
Building costs overhaul:
Overall, higher tier buildings (Fortresses, Army Camps, Gymnasiums, etc.) are now much more expensive to build. This is in part to compensate for the lack of phases. Houses and other civic structures are cheaper, except for Carthaginian apartments (Bets).
Champion units:
They now cost more population space. Champion infantry costs 2 population, champion cavalry costs 3. So, there is no more champion unit spam.
Heroes:
All Heroes are now just very powerful units, identical to Greek heroes from Age of Mythology. I'm still working on implementing a training limit. They also cost more population space. Celts and Hellenes can now train only 3 Heroes, the same as other civilizations.
Hellenic heroes are Leonidas, Alexander and Themistocles. Celtic heroes are Boudicca, Brennus and Vercingetorix.
Mercenaries:
They all now train at an Advanced rank.
Ranged units:
Removed minimum range. Archers were heavily nerfed.
Technical changes:
All features that weren't implemented, or were implemented partially, were either removed or tweaked. Charge attacks are removed because they didn't work and they were cluttering the UI. Priests are removed, but the Temples now heal faster and can garrison up to 30 troops. GUI buttons that did not work are removed. Civilization pages that showed technologies and bonuses are also removed, as almost nothing was implemented at the time.
Population cap is now at 150. In Age of Empires 2 campaigns, you had only 75 population space. I think 150 should be more than enough, considering the lag at higher unit counts.
The AI (legacy qBot as base) is now harder, and attacks with more units. Hellenic AI can now train Siege Towers.
Towers and Fortresses:
Towers are now weaker, but you can build more of them. You can now only construct 5 Fortresses, so turtling is not really an option.
Changes not considered:
Technologies and phases are not in the game. This is a feature, not a bug.
The full mod, changelog and install instructions are inside the ZIP file below.
EDIT September 4th, 2025:
- AI bugfixes, mostly Carthage.
- Reduced the range of melee Cavalry.
- Nerfed Persian Chariot Archers and reduced their cost. Previously, they were comparable to Brythonic Champion Chariots.
Screenshots:
0ad_alpha_IX_mod_Imperia_Vetera.zip