Proper Gentleman AI v1.3 with +25% Handicap Bonus on Extreme Difficulty with High Resource starts holds it's own in 20 minute Treaty games
I can confirm after several games that giving the AI on Extreme Difficulty +25% Handicap Bonus seems to do the trick when playing with skilled human teammates, or even intermediate human teammates. This is especially noticeable on High Resources and 20 minute treaty games, where the AI needs to race ahead to the next age and build up it's base and walls and economy quickly.
That said the AI is still usable on High Resources on Extreme Difficulty without any Handicap Bonus, but the AI tends to do better in long protracted games when it has a bonus to it's economy. So with Proper Gentleman AI v1.3, the AI is also good for other skill levels but this is what I want to mention most, because many players are looking for a challenge and then they're wondering on whether this AI mod would be a good AI mod for treaty games, and it is to some degree. But, however, it is good to note that the AI performs longer games with 1.3 x 1.25 handicap which = 1.625, or +62.5% bonus.
Enjoy the mod as much as I do, and be sure to host it online with friends, buddies and playmates online! As with all AI mods, it does best on conventional maps, and not on unique map starts like Archipelago or Ceylon.
Proper Gentleman AI v1.3:
It's not as exciting as some of the legacy mods for treaty, but it will still do a decent job especially with an extra handicap bonus. I have some example screenshots of two recent games that I've played with my mod online.
Screenshots:
3v3 vs the AI when it has +25% Handicap Bonus
Livestock built by the AI remaning
A long game where I asked resources from the AI ally and sent them to my human ally
Be sure that if you like treaty games, this is probably the best AI mod currently in AOE3 DE for that mode. The benefit is that you can add in the extra handicap bonus for online games, or keep the original built-in bonus if you want a more fair game.
Anyways, enjoy Proper Gentleman AI v1.3!