Suspects win by convincing the detective that they're telling the truth. Detectives win by correctly guessing the liar.
Technically, you really win based on the final detective guess. We give progressively more points for each question plus a bonus if you won on all three rounds.
In a way, the game is a collaboration between the judge and the truthteller - they both get the same number of points. The liar can definitely win, but the truthteller and judge can only tie. The fun part is, the judge is collaborating with someone - but who?
I meant to say, that even when I get 1100 points in a game, it doesn't show in my player stats that I won the game. I suspect this is because it was a tie.