Also worth noting that 3 out of the 7 expansions that have released for Age of Empires 2 are now bundled with the base game, which did increase the base cost from $20 to $35 lol.
Almost forgot to mention, all the civilizations from Age of Empires 1 were ported to Age of Empires 2 via an expansion called Return of Rome, which is not one of the bundled expansions in the base game. Closest you'll get to the first game being ported as development was halted a long time ago. I think they only keep the servers up at this point lol. So the Return of Rome expansion was their way of killing off the first game.
You called down the thunder, now reap the whirlwind