I've come to two conclusions on how one gets a high (100k+) score.
1) Play on a Gigantic map.
2) Set difficulty to 'Suicidal' or whatever is higher.
Then you get to be in the top 50. Woo hoo! Good for you.
Unfortunately, there are those of us that enjoy 'competing' on the Metaverse that are not good enough at the game to win often (or at all) on settings above 'Normal'. Therefore we will never be 'competitive' and may as well just forget about the Metaverse altogether. My empire and I have had much discussion about points scoring and none of us has managed 50k yet. So, yeah, we don't really know how points are scored but I assume my two points above are the major factors.
My suggestion:
Expand the Metaverse. Have a Top 100 for each difficulty. Have the Empires ranked in each 'difficulty ranking' by the average scores from players in that empire that play on that difficulty. An example.
Player A and Player B play 'Suicidal' games on Gigantic galaxies and that is all. They are in Empire A.
Player C and Player D play 'Normal' games on Gigantic galaxies and that is all. They are also in Empire A.
Player E and Player F play 'Normal' games on Gigantic galaxies and that is all, they consistently score higher than Players C and D. They are in Empire B.
For the sake of the example...these are the only 6 players and the only 2 empires in this 'expanded' Metaverse. The results are as such:
You would go to the Metaverse and click 'Top Ranked Players' and then click on a difficulty. Let's say you picked 'Suicidal'.
#1 Player B with 10 games submitted 10 wins 0 losses and 410,000 points.
#2 Player A with 7 games submitted 7 wins 0 losses and 370,000 points.
(Player B has a medal named 'First Place - Suicidal, Player A has 'Second Place - Suicidal')
Then you click 'Normal'. and get...
#1 Player E with 11 games submitted 11 wins 0 losses and 58,000 points.
#2 Player F with 11 games submitted 11 wins 0 losses and 57,550 points.
#3 Player D with 12 games submitted 11 wins 1 loss and 48,000 points.
#4 Player C with 8 games submitted 7 wins 1 loss and 41,000 points.
(Player E has a medal named 'First Place - Normal, Player F has 'Second Place - Normal, etc)
Then you go to Empires and select 'Suicidal' where you would see that Empire A is top ranked. Their players all have a medal called 'First Place Empire - Suicidal'. While if you selected 'Normal' you would see that Empire B is top ranked and their players have a 'First Place Empire - Normal' medal.
Eventually some more players in Empire A start playing on 'Normal' and some from B play 'Suicidal'. A few days later you look at the top empires and pick 'Suicidal' and see something like...
#1 Empire A - 2,874,000
#2 Empire B - 400,100
Then you click on 'Normal' and see that Empire B still has the most points on 'Normal'.
#1 Empire B - 250,000
#2 Empire A - 110,000
Everyone in A still has their same medals and everyone in B still has theirs. People are happy that they can play on a difficulty they are comfortable with and still feel like they're being competetive. That's my theory, anyway.