Board Thread:Off Topic/@comment-24.158.236.107-20131006221701/@comment-1470368-20140708234252

The stats of Alduin depends on the Player's Level.

At Level 100, Alduin is at his most powerful in the game (& it is only fitting to set the Difficulty to Legendary)

If you want more of a challenge from Alduin, download BOTH the Deadly Dragons mod & the "World Eater Beater" mod (by Trainwiz).