We don’t take this quite as seriously as RPG games might, really looking for both interesting mechanics and visuals for the selectable characters or ships, etc. A game might have interesting characters if conditions on the character require the player to play very differently or drastically change how common mechanics in the game may work. They also get points if the characters are well designed and fun to look at. A game with 10 or more might have a 1 score here, a game with 1 fully realized character might get a 0 score, and a game where the intention is there to be is no character, a basic shape or stick figure might have a -1.