Theme Brainstorm

Game Design

Commander fight — This is the typical one, the "wizard battle" of MTG or Hearthstone. Can be replaced just as easily with two army generals, or two sports coaches, etc. Probably the only real good one because these games are all about attacking the opponent generally.

Civilization builder — build your civ's infrastructure, peoples, resources. Economically conquer the opp.? Examples: city-states built by founders, gods building planets, cute little animals building animal villages

Life simulator — grow up, learn things, gain skills, grow your family. Social status your opp. into the ground? I dunno.

post-apocalyptic gang rivalries

Space opera battle for system control

Pro Wrestling matches

Fighting game style martial arts tournament