bot PETRA_Expert.More active bot, compatible with A27.

[Deicide4u]

28 minutes ago, Seleucids said:

The bot still makes the same mistakes of using women to mine and infantry to farm. 

Sadly, this is one of those complications that arose from the current CS system. Bot can't differentiate very well between women and CS units.

The number of women you need is variable depending on your strategy, but it shouldn't be more than 50. Especially in 200 population games.

[mod_3d]

11 hours ago, Seleucids said:

Hi, I downloaded version 7 of your bot and test played it against Petra on very hard random settings. A few observations:

1. The bot makes all women in the early stage, up to a third of its population. This gave the bot very good eco compared to Petra but very weak against rushes. 
2. The bot still makes the same mistakes of using women to mine and infantry to farm. 
3. The bot loves cavalry and its eco is mainly cavalry focused. 
4. The bot wins against Petra but with a very low KD. 
5. Dropsites are not placed close enough to the resources. 

Point one can be improved by changing the target number of females. Normally, in a 200 pop game, 55-60 women is the sweet spot. Even in 300 pop games, assuming you use all women to farm, no more than 65 women is necessary from my experience. 

Point 4 is a result of point 1: the bot always fights outnumbered battles. 

Point 5 can be improved by decreasing the maximum acceptable distance between res and dropsite. 

Hi!
Do you have additional mods installed?
The map and its settings can also make a difference (if the player bases are too close it can change the behavior settings).

Screenshots with game and map settings for 200 units and 300 starting resources. If you get different results when playing the game, a save or screenshots may help to understand the reasons. First rush of basic Petra at 8min.

1. On Screenshot  50 support units for 13min. If you get more when testing, it could be due to:
    a) other mods or game settings.
    b) the number of units is less than 50, but a large batch size is selected when recruiting.

2. 

5 support units are gathering wood
5 infantry units are gathering grain.
The units switch one at a time at intervals:
step 1
4 support and 1 infantry wood
4 infantry and 1 support grain
step 2
3 support and 2 infantry wood
3 infantry and 2 support grain.
etc.
Full switching may take some time

3. On the screenshots by 8min 0 cavalry.

4. Example screenshots with unit graphs at 5 and 8+ min.

With the mod, at 8+ minutes into the game, the infantry count is 2x higher than the base Petra.

5. No changes have been made to Dropsites, if there is a lot of fruit in the starting area it will increase unit movement as only one farm is built and mostly on the edge of the influence area not considering the location of these resources.

Spoiler

 

 

 

Petra rush

 

 

 

 

Edited May 12 by mod_3d

[Seleucids]

A demo video of Petra_Extreme against Petra on Mainland. This time it didn't make 130 women. I think yesterday's incident was caused by Coastal Ranges map or some other weird settings. 

 

[mod_3d]

On 12/05/2025 at 1:48 PM, Seleucids said:

A demo video of Petra_Extreme against Petra on Mainland. This time it didn't make 130 women. I think yesterday's incident was caused by Coastal Ranges map or some other weird settings. 

This bug is fixed in version 0.7.1

[mod_3d]

UPDATE: Version 0.7.1

Disabled debugging.
Fixed a bug when recruiting a large number of support units. The number would be around 60.

[mod_3d]

UPDATE: Version 0.7.3

Changes:
Fixed a bug with recruiting Champions
Fixed a bug with recruiting Support units, set the limit to 50.
Added recruitment of Cavalry and Infantry at the start of the game for more defense against early rushes.

PETRA_Expert vs Base PETRA

 

[Deicide4u]

Hey @mod_3d, I've tried playing your mod and watched your AI play one game against Hard Petra. Some impressions:

1) I've played against Mauryans, and they made no siege whatsoever. Some elephants only. His attacks were tickling my forward Fort, until I went out and crushed him. 

2) The bot heavily prefers making a lot of citizen soldiers, to the detriment of nearly everything else. While this means that he will have a huge army, it will be fairly weak by the time I arrive. 

3) The bot expands late, hurting its map control. I usually don't make a lot of CCs, but I had 4 of them while the AI had only 2.

4) In the AI vs AI match, the bot played as Romans. While his boom was much better, he got stuck in the late game, failing to finish off his opponent and amassing a huge stockpile. It just kept making CCs until I quit.

All in all, the bot is much better in early to mid game, but Petra is still more stable in the late game. She is also more threatening, because of the siege engines she likes to make.

Thanks for making a cool bot for us. It microes very well.

[Classic-Burger]

On 05/07/2025 at 4:51 PM, Deicide4u said:

) In the AI vs AI match, the bot played as Romans. While his boom was much better, he got stuck in the late game, failing to finish off his opponent and amassing a huge stockpile. It just kept making CCs until I quit.

Sounds good, sounds like he's having fun with the victim.

[Deicide4u]

@mod_3d, when will the most up-to-date version be available on mod.io?

Also, the 0.7.3 version has a bug on most standard maps. The AI will not make a house and get pop-blocked forever.

[mod_3d]

13 hours ago, Deicide4u said:

@mod_3d, when will the most up-to-date version be available on mod.io?

Also, the 0.7.3 version has a bug on most standard maps. The AI will not make a house and get pop-blocked forever.

Mod updated. If there are no critical bugs, I will send for verification on mod.io after some time.
On what maps and game settings do not build houses?

[mod_3d]

UPDATE: Version 0.7.4

When retreating, support units will enter the garrison if there are relevant buildings nearby.

After building a Temple, the bot will recruit 5 Healers and add them to rush groups, etc.

Added individual queues for Siege units and Elephants. As soon as these units become available, they will be recruited with higher priority.

Reduced conditions for moving to the next phase and building a second Civ Center.

[Deicide4u]

2 hours ago, mod_3d said:

On what maps and game settings do not build houses?

Mainland, Continent. Normal size.

He also begins by training infantry and cavalry, not females. 

I'll test the new version. 

Edited Friday at 06:28 by Deicide4u

[Deicide4u]

Replay of me playing the Petra Expert Medium on Mainland. No major bugs, but the bot did throw most of it's units away on the first push. Maybe it's harder when the bot is set to Defensive?

I've even played badly, didn't utilize most of the Roman benefits.

 

RomansVSBritons_PE_M.zip

[mod_3d]

1 hour ago, Deicide4u said:

Replay of me playing the Petra Expert Medium on Mainland. No major bugs, but the bot did throw most of it's units away on the first push. Maybe it's harder when the bot is set to Defensive?

I've even played badly, didn't utilize most of the Roman benefits.

In the replay, the difficulty level is set to Medium, and the behavior is  Balanced.
These settings have limits on the number of units (for example, gain 140 units and stop despite the maximum limit), they can also limit building, technology and the number of units in the rush.
The mod is tested on Very Hard, the behavior is Aggressive.
A map with a low amount of resources also affects the bot's play.

[Deicide4u]

1 hour ago, mod_3d said:

In the replay, the difficulty level is set to Medium, and the behavior is  Balanced.
These settings have limits on the number of units (for example, gain 140 units and stop despite the maximum limit), they can also limit building, technology and the number of units in the rush.

I didn't know that. I thought that Medium bot builds and trains everything. In any case, Hard and Very Hard difficulties should only affect the resource modifier.

Medium should be a "fair" challenge to the player.