Final Judgement | Act VII Dragon's Dogma Guide
Last update: 11 May 2016
In short: A quest leading to one of the game's ending - including New Game+.
Difficulty level: Easy.
After completing Quince's quest, jump into the abyss.
You'll find yourself in the chambers of the Seneschal, the ruler of the world. To replace it, defeat him.
The first stage of the battle, comprised of two fights, shouldn't be difficult simply attack him and watch out for his magick attack (a wave of energy).
After defeating the Seneschal twice, you'll proceed to the second stage. This time you'll be given a choice. If you turn back towards the magick village visible in the distance, you'll go back to a simple life. It's one of the endings rewarded with an achievement/trophy. It's not the final ending, though. By going back to the village you WON'T UNLOCK New Game+.
Instead, follow the tunnel filled with well-known characters. Each of them will attack you, some will say something. You don't have to fight them - you can just simply pass them by.
If you chose to continue the battle, face the Seneschal and his Pawn (with the help of your own). This time it's best to focus on the Pawn, since most of the time he's the weaker one. Then, bring down the ruler of the world.
After winning the battle, the ruler of the world will surrender to your will. The option to question the Seneschall will reveal some interesting information about the structure of Dragon's Dogma's world. When you're ready, select "Wield the Godsbane blade". The god will die.