Vlyn, 3 days ago

maxroll.gg/d4/resources/nightmare-dungeons

If you have straight forward questions, please just try to Google them first.

... it says nothing about how much exp you get for completing the dungeon. Just that you get Glyph XP and increased XP for killing monsters per 1 level above yours up to 10 levels above though.

Even the thing you linked doesn't say how much Character XP you get for just completing the dungeon itself lol.

Nightmare Dungeon Rewards

Nightmare Dungeons are hard, but the rewards are worth toughing them out! In addition to the normal Dungeon completion rewards of Gold, Experience, and a Codex of Power Aspect, completing Nightmare Dungeons enable you to find and level Glyphs, grants even more Experience with scaling monster levels and boosted monster density, and guarantees you 4 Item Rewards.
Glyphs....
Experience

Since defeating higher level monsters grants more XP, Nightmare Dungeons are one of the only ways to power level in the endgame. Every +1 increase in monster level above your character level nets 1.5% bonus experience up to 15% (10 monster levels higher). Monsters do not grant additional bonus experience if they are over 10 levels higher than your character. Choose Nightmare Sigil Tiers that correspond to monster levels at your level or up to 10 levels higher for maximum efficiency.