Age of Empires 2: Definitive Edition has a thriving pro level tournament scene and online multiplayer culture.
Then there is Age of Empires 4 that is nearing completion which might be an Age of Empires 2 DE contender or might be an AoE 3 dud.
AoE2 does so many things wrong by 'modern game' standards. The graphics are 2D. Pick any two civs, they're 80% identical. New, goofier mechanics (Flemish Revolution) are disliked by the players (although still used). It's still an incredible game.