Three of us were playing yesterday because one of my friends wanted to try the game out. Base game board and mythos, with all the equipment, monsters, etc from kingsport and innsmouth as well.
We draw Atlach-Nacha for the GOO. I think, "...Crap"
First turn, one of my friends jumps in the one open gate, i kill some monsters, and the new guy has a random encounter.
Second turn, I jump into the second gate and a third opens where player 3 is standing. Then the mythos opens in the same spot as the one that sucked player 3 in (and since A-N makes all gates gate bursts, no monster surge)
Third turn, Player 1 comes out and closes, and the mythos fails to open on the gate I was in.
Fourth turn, me and player 3 come out and close.
One game, four turns.