The scaling of the Thirvai might be granting a bit much science on longer games or huge map games where you have a lot of cities and such.
"Incoming trade routes grants additional gold for both city owner and trade route owner. +5% science and culture in this city for each trade route targeting a foreign city with an ainuruvar guild."
I'm currently at turn 891, so currently in about the 2/3 territory of game turns but I guess I'll be spending the last third of the game just running future tech over and over again. I'm crushing the AI on tech. This usually doesn't happen on deity games. I'm making close to 11k science per turn.It wasn't really noticeable at first but then as the trade routes grew and the number of cities it just took of like a rocket.
I'm at 73 techs, 35 cities, 26 traderoutes, 30 culture (progress6, fealty1, statecraft6, industry1, imperialism6, freedom10). I guess I'm crushing it on culture to a bit.I wasn't very aggressive at the start of the game. Sort of just sat on my island took over some minor islands and such and just slowly built up. Now I'm just going around liberating the world (and abusing the freedom mechanics and rewards for doing so when it comes to XP), bringing people back from the dead and liberating city-states. I crushed and resettled Marocco but I have spared Byzantium even tho we three all shared a starting continent. It's not only out of goodness but also cause I want to have a lot of vassals so I can see how silly that production bonus could get.
Some time during the Industrial-Modern era things just exploded. As techs was supposed to become more expensive and such instead things just rocketed a head and there was no slowing down. One would think that the cost of the techs would be enormous due to the difference and I'm doing all the heavy lifting so to speak. No tech that is left in the tree is more then 10-11 turns away to complete.
The issue is that the closest rival is at 60 tech, and most of the others are at 57 or 58. The scaling on that +5% is possibly to much. Most of the rivals are at about 22-23 culture policies. They more or less all went for rationalism and order to so they should have gotten at least a couple of techs for free.
Part of the explanation could be playstyle. But the modifier for science and culture (based on trade routes) is currently set to 7055% (it's 7065% for culture) in cities such as Uraiyur (my main trade city). In my capital it's only 850-860%. That city, Uraiyur, alone makes about 4034 science per turn, or then about 40% of my total science. It makes 3794 culture per turn out of my total 13514 culture per turn. About 10 trade routes out of the 26 operate out of that city.
Two trade routes are not operating at the moment so only 24 are in action. 7 are internal at the moment granting production between cities, stuck since the war mostly. 11 target city-states and 6 target rival AI (mostly vassals or spreading the guild thingy to new cities).
The game is in the bag and have been for some time. Now it's just clicking the turns and trying things out for fun and science.
(included savegame for comparison and analysis)