Combat & Conflict
Grammar for hitting, blocking, aiming, and dying: sixteen mechanics arguing about what one exchange should cost the player, in time, resources, and nerve.
Rogue's Hit Points convert combat from a coin flip into a negotiation, and everything here inherits that premise. Fighting games then supply most of the vocabulary. Street Fighter II's Chained Combo Strings were a bug that survived because they created a skill ceiling nobody had designed; Super Street Fighter II Turbo adds Cancels and Super Meter, a resource earned by fighting well and spent on comebacks; Street Fighter III makes defense aggressive with the Parry and Riposte Window, and Bushido Blade gives attacks and guards geometry.
Shooters develop a parallel grammar. Counter-Strike's Learnable Recoil Patterns make spray deterministic and therefore memorizable, which is the invisible skill curve under competitive play. Halo ships Regenerating Health and Constrained Weapon Loadout in the same 2001 release, replacing the health-pack scavenger hunt with a rhythm of pressure and retreat and turning pickups into decisions. kill.switch makes cover geometry a verb, Gears of War prices a close-quarters kill in vulnerability, and Max Payne makes time itself spendable.
One dispute organizes the whole family: whether recovery should be free. Regenerating health says pressure is temporary and the encounter resets. Demon's Souls says the opposite with Stamina Action Economy, where every swing and every block draws on one shared bar and panic becomes a punishable state, then adds Poise and Stagger Break as a second hidden health bar to force the aggression-versus-patience dilemma. Sekiro takes it further, making deflection rather than distance the core defensive act and converting combat from spacing into rhythm. Two decades on, most action games are still choosing a side.
The family, in order of arrival
Every mechanic in this family
Inherited from other families
Mechanics outside this family that parent something inside it — where the cross-pollination happens.