Probably not something that matters too much right now but will be relevant when this game has ranked seasons.
Currently the predicted game completion prediction is way off when someone leaves. I had a player leave a game against me that they were losing pretty badly on turn 147 and I was told only 12% of the game was completed. On average games seem to take about 350 turns but because noone had yet to take a major artifact it seems the game is not considered to have proceeded far. Usually games end with people being able to take something like 4 major artifacts in a single turn so artifacts remaining is not a good measure of game completion.
Currently the predicted game completion prediction is way off when someone leaves. I had a player leave a game against me that they were losing pretty badly on turn 147 and I was told only 12% of the game was completed. On average games seem to take about 350 turns but because noone had yet to take a major artifact it seems the game is not considered to have proceeded far. Usually games end with people being able to take something like 4 major artifacts in a single turn so artifacts remaining is not a good measure of game completion.