If someone finds a CC0 model or relief texture let me know. We could ask this guy for permission: https://www.artstation.com/artwork/rABVym https://sketchfab.com/3d-models/ara-pacis-of-augustus-8b6b29626c7f49a1a0376ff6cff863fc Could augustus mausoleum as in the second video be another wonder? It has quite a unique shape.

It would be interesting if some Gaia units were a bit problematic, I just played a scenario with "pirates" and they were there doing nothing, and were too weak.   If battalions are not that big but bribing them costs a fortune (wouldn't be good for their future business), yes, balance. Particularly for civilisations that would need to rely more on them, from bonuses or techs.

I see, although it's similar to what someone else was saying regarding going back to base, which is not accurate. More realistic would be for the Baggage Train to have a big supplies bar that would go down when recharging another unit's ammo bar. Raising the supplies bar could be done making the Baggage Train like a port: a dropsite for wood (to make arrows, but food and other resources could/should be considered, along with plunder mechanics) and a destination for Traders, with their other end being set at an own’s or allied Market or Supply Depot structure, which could have logistical techs and produce the Baggage Train unit (and also Traders). When a Trader supplies a Baggage Train, it should not raise the supply bar more the more distance is traveled (many possibilities could be considered), so a supply bag icon instead of a resource with a number could be used in this situation. Up to here not much in the game has to be changed, and almost no micro would be needed. It makes it hard for the enemy just to go around defensive buildings, just like it was in reality, since they and their garrison would be the bane of supply lines. If the campaign is overseas and one doesn’t have territory there, the Traders would need to be transported manually by ship, and “back to work” has to be used after disembarking (just tested this with markets on separate islands), adding micro, but seems a fair balancing mechanic considering the more complex logistics of the situation. There could be alternative ways to replenish ammo rooted in reality: if shot upon, foot archers could slowly resupply considering taking arrows from the ground (unless shot with short arrows some civilisations would historically use, who in turn might have been able to reuse bolts). Horse archers wouldn’t be able to do this. Attrition outside one’s territory could be a thing to involve all units in all this, although not with the HP bar but with some attrition bar that would only start having some effect when empty, so no problem with short raids, but that can’t turn into an extermination campaign, fixing one of the most annoying forms of early game snowballing. In the late game, snowballing is not much of a problem, the game has to end at some point. Regarding plundering (questionably called looting in 0 A.D.), without a Baggage Train armies should just resupply (not that they could carry much extra), and with it, many possibilities could be considered.

I put it there to not open a new thread for it. If it is an interesting task, open up a new thread.

Ara Pacis or Altar of Peace The Ara Pacis Augustae (Altar of Augustan Peace) is a renowned monument in Rome, commissioned by the Senate in 13 BC and dedicated in 9 BC to honor Emperor Augustus’s return from Spain and Gaul. Located in the Campus Martius, it represents the "Pax Romana" through marble reliefs featuring imperial processions, mythological figures, and fertility scenes, symbolizing peace and prosperity.