Dungeon Portal Room

The Dungeon Portal Room can be accessed with /warp dungeons or by hopping over some mushrooms from spawn. The Dungeon Portal Room is a place where you and your team (optional) gather and prepare to brave the dangerous challenge that is the dungeons. This is where you can collect a majority of forge materials to use later. Some dungeons are marked Easy, such as the Tutorial Dungeon, and Happy Hills. Others are labelled Medium, with the latest dungeon Outpost falling under this category. Further difficulty levels will become available when other dungeons are released. Dungeons can require a few resources to succeed. The quality of your armor, weapons, and food of choice will be pivotal in deciding your victory. For example, The Outpost recommends max enchanted diamond armor (However, netherite is strongly suggested) as well as a matching sword to be able to take a stand, although the Aether Blade is strongly preferred for its bonus damage against the undead. 

Having more teammates increases the quality and quantity of loot, while also increasing difficulty.

Full Dungeon Guides can be found in the Dungeon Codex book.