Thanks all, good game! Tigranes taking over did add some challenge to the game, I was playing too lazily at that point and got punished for that at some fights.
In the hindsight I'm not too fond of the 3 civs/player format (unless they're teamed), the lesser civs became boring when I compared them to my top civ, Hyboria. Also no means of co-operation until optics/astro.
Hyborian starting land was very cold and had a lot of tundra, but with silver I had early commerce and managed to get the GLH and some overseas trade. That meant that I had commerce to get HBR semi-early and managed to keep some kind of income keeping me afloat during the war. With the kind of land, I felt going for Egypt was a must to make that civ relevant. It was a bit of weird situation in the leadership of Egypt, as it got replaced right before the war and also the diplo situation favored me. Egypt meant better land, but there was still not that much. But Babylon was weak too and I had army left from the war + elephants to build some WEs. I feel that after taking that land, I was at a very strong, if not winning, position.