As every game, Planets has a score to sort players according to their strength in a particular game. The standard score is very simple:
- one point per freighter
- ten points per capital ship
- ten points per planet
- 120 points per starbase
Because this is only a very coarse measurement, different scoring systems have been developed; one very popular one is PTScore.
Some games use the score as a victory condition: the player with highest score at turn X wins.