Have you reached the appropriate level for nightmare dungeons in Diablo 4, many catacombs are open to you to secure high-quality loot. Therefore, we show you a cheat sheet that should make your farming tours easier.
What is this cheat sheet? After you have met the requirements to unlock the 3rd world level, the nightmare dungeons are open to you. These dungeons have been used since release to effectively level up heroes and farm rare items.
The Reddit user BlackBullTwitch has looked at all the layouts of the dungeons for you and assigned them to the appropriate catacombs (via Reddit). Here’s what the summary looks like:

This collection should help you choose the best dungeon for you so that you can traverse the hostile corridors faster and, above all, more easily.
Can the layouts vary? All dungeons have their characteristic layout, but there are still variations of these main layouts with minimal differences. Here’s an example:

As shown in a presentation by Wowhead, the dungeon “Aldurwood” is always the same in principle. The only differences are the wings, which are either mirrored or have a different angle. Additionally, in figure 2, there is a double box at the end that can be explored clockwise or counterclockwise.
It is clear that Blizzard has made an effort to provide you with a wide range of variety despite fixed layouts. And if that is not enough, the nightmare dungeons with their modifiers bring an extra pinch of excitement.
Each dungeon always presents new challenges with the appropriate seal, rewarding you with strong loot and a lot of XP. So if you do not know how this feature works in Diablo 4, we have the right guide for you: Diablo 4: Nightmare dungeons and seals – This is how the feature works