Chess has only one female character, the queen, which makes sense since the names are inspired by medieval warfare. However, she is also the most powerful piece.
Played entirely straight with the 2014 co-op minis game Myth from MERCS Miniatures. The core heroes are four men and a woman. (They do offer a set of gender-swapped heroes for separate purchase, which lampshades the problem with its relentless pinkness.)
The core sets and first Force Cycle of Star Wars Customizable Card Game have exactly one named female Dark Side character: Mara Jade. Female Light Side characters show up twice: Leia and Mon Mothma. Alien species generally avert the principle, since any given species probably has fewer than five character cards. Partially justified because the first sets focused on the original trilogy where the same gender imbalance existed. Later sets draw on the Star Wars Expanded Universe and generally have more named female character cards.
Star Wars: Legion: Though unit expansion boxes come typically with 4 to 7 unique sculpts, none of them have had more than one female miniature. Even alien species fill more slots in the later unit boxes.
Yu-Gi-Oh! often adheres to this trope to a T. Several archetypes (groups of cards that share the same word in their names) are male-dominant with usually one female member. They are often the weakest members in terms of attack and are more defense-oriented. In contrast, female groups are often exclusively female.
"Burstinatrix" was originally the only female Elemental HERO (out of five), and it even said so on her original card. (The first version said she was the "only" female among them.) The next was changed because new Elemental HEROes appear later, including female ones, like Lady Heat and Poison Rose. (Rampart Blaster too, if you count the Fusion Monsters.) The Japanese and Korean versions, however, maintain that she's the "only" female, since there has been no new reprint of the card after other female Elemental HEROes were released.
" was originally the only female Elemental HERO (out of five), and it even said so on her original card. (The first version said she was the "only" female among them.) The next was changed because new Elemental HEROes appear later, including female ones, like Lady Heat