Wooh, finally got to 1AD. Great map so far. It feels more like an SGOTM than GOTM, and that is definitely a compliment. It looks bloody massive though, pun intended
In the start, my scout went NW-NW, and spotted the coastline. With great risk of killing seafood, it was a no-brainer to settle 1S on plains hill. 2nd city went NW for the clam and such there. Surprisingly the non-riverside grassland is interpreted as riverside, probably because of the freshwater lake, which the game sometimes misunderstands. Great here though, as that meant at least one good cottage spot for the capital.
The Mongol scout found me early too, very early (think it was T18, as I made a note of it at the time). Figured the scout was pre-placed (sounds like it wasn't?), because I thought the land was blocked off, but eventually I located him through the ice. No copper in sight was a bad omen. Glad I at least spotted horses, although it was far away. Once I traded for IW (didn't self-tech it), I spotted it on Kublai's side, and decided to plant a city on top of it. Ferried an archer and settler over, and soon after a spear and another archer. Had already settled the horse-island, so iron city borrowed the improved fish. That meant I could pretty quickly whip a spear, so it's never been in danger. A stack of 6 chariots went back and forth without attacking, so I decided to counter them with spears. Only two left now.
Built GLH in 1600-something. Kublai built Stonehenge and Great Wall. All early wonders went very late, and with Oracle not gone, I had to take the chance on it. Capital wasn't well-suited for it, most forests had been chopped into GLH, but a city further west had several forests, so two workers went to work, with max overflow into it. Had self-teched Alpha, but I was very pleased when it was still possible to Oracle Civil Service. That meant Buro+HR change in 700BC or thereabouts (waited 2 turns so I could do both).
That makes for a nice start. Have 9 cities (3 on horse island, building a settler for a 4th). Doing 250

at 1AD, at -89

. Capital is size 12, soon 13. Wouldn't be possible without HR, but there are currently 'only' 3 MPs.
Some chariots snuck through the ice to attack us, around T90. Oddly enough they went through much of the territory, and targeted the second city, forking the capital. None were in real danger, as I had 3 guys in each city, but capital only had 3 warriors (and losing MPs would have sucked). Thankfully 2 brand new archers won, so the problem was removed.
Recently I landed 4 berserkers on Kublai's land. It turned out to be right next to his capital. Light landing force, but I hoped it was possible to snag something. But it's on a hill behind 60% defence (damn wonders), with guerilla archers. Hadn't seen any melee units, so hoped he had no metal at least. Of course, the darn bugger whips an axeman in-between turns after I landed. Slight chance to take it, but it's surely a waste of units. 60% odds isn't going to work with 4 vs 3. Think I'll move them inland and hope for another easier target. Admittedly I could have attacked stone-pig city earlier, but it was size 2 so I wanted to wait, and also strike where it hurts more. Maybe I can take out his horses and metal. Certainly don't want to face up to darn Keshiks...
I've met Willem too, and one more AI. But maybe best I don't mention that? Have also very recently spotted another border, which I think is another proper AI, but doesn't look like I can get actual contact yet. Looks like the map is kind of divided up in two sections. I lost a few explore boats trying to get circumnavigation, but eventually I got the deed done. Gotta love 4-moving galleys
Presumably this game is going to be a mammoth to complete since the map looks rather large. And Gilgamesh does indeed have a very nasty friend.....

Literally laughed out loud when I saw that thing. Perhaps best not to say much more than that, as it's not something all will know about at 1AD. Much depends on exploration early, and luck with enemy galleys. And of course luck with what paths you take.
Okay, this got longer than intended. Very fun map so far, but also pretty challenging. Had you removed that iron as well.... dangit. Would be a shame to play Vikings on such a hostile map without a real chance to build Berzerkers.