As much as combat, social & roleplaying and [[1721251317-exploration-is-a-pillar-of-roleplaying-games|exploration] are pillars of tabletop play. Downtime and crafting could be a pillar as well.
Some players love crafting, creating a stronghold or outpost. From managing a guild or organisation to leading a whole country. You should be on the lookout what the players love doing that might not be in the conventional three pillars of roleplaying games.