I have been trying to come up with alternative, useful achievement scores and have a suggestion as follows.
The following standardizes the final star count for each player at the end of the game, converting it into a star count in an 8 player, 24 starting stars, 50% victory Basic Game.
To do this you you do the following
Divide final stars by number of players in game, times 8
Divide this by the number of starting stars, times 24
Divide this by victory percentage, times 50.
This new value is recorded for each player along with a count of the number of games played.
From this you can now display the average number of stars captured in every game played
and the average number of stars captured in all games where the player is not eliminated (average of all non zero games)
Each having a range of 0 to 80’ish