Template:List of underworlds

Note: Community maps are identified in italics.

Map	Underworld	Features			Notes
		Passive†	On Entrance	On Exit
Bloodwater	Underworld	Health drain  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell
	Loot Island	Health drain  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell
Bonesaw	Underworld	Health drain  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell	All players are stunned and must race to a large pile of cash, the first player to reach it deciding the winning team of the match.
Brimstone	Underworld	Health drain  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell
	Loot Island	Health drain  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell
Carnival of Carnage	Falling Platforms	Health drain  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell	All players are placed in Bumper Cars. The winning team is decided by the last team with at least one living player.
	Duck Collectors	Health drain  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell	All players are placed in Bumper Cars. The winning team is decided by whichever team collects 200 Ducks, or the last team with at least one living player.
	Bumper Car Soccer	Health drain  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell	All players are placed in Bumper Cars. The winning team is decided by whichever team scores 3 goals (1 in Sudden Death), or the last team with at least one living player.
Cauldron	Underworld	Health drain  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell
Corruption	Asylum	Health drain  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell	Players can only use melee weapons and have an endless speed boost while in the underworld. Underworld layout is procedurally generated.
Cursed Cove	Davy Jone's Locker	Health drain  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell
Erebus	Underworld	Health drain  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell
Eyeaduct	Purgatory	Health drain  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell
	Loot Island	Health drain  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell
Farmageddon	Inside the Pumpkin	Health drain*  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell	* Health drain only applies while portal is closed.
Ghost Fort	Skull Island	Health drain  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell
Gravestone	Underworld	Health drain  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell
	Bumper Car Race	Health drain  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell	All players are placed in Bumper Cars. The winning team is decided by whoever races to the end first, or the last team with at least one living player.
Hellstone	Purgatory	Health drain  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell
	Hell	Health drain*  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell	* Health drain only applies after lingering for too long.
Helltower	Hell	Health drain*  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell	* Health drain only applies after lingering for too long.
Helltrain	Underworld	Health drain  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell	All players are forced into third-person view and can only use melee weapons. The winning team is decided by the last team with at least one living player.
Krampus	Underworld	Health drain  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell
Laughter	Funhouse	Health drain  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell	Being inside after the entrance portal closes will give the player a bomb head, exploding and killing the player shortly after.
Lava Pit	Underworld	Health drain  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell
Los Muertos	Land of the Dead	Health drain  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell
Mannsylvania	Dracula's Castle	Health drain*  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell	* Health drain only applies while portal is closed. Grants the Vampire Powerup upon exit.
Moldergrove	Underworld	Health drain  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits*  Speed**  Magic Spell	Underworld is a 3v3 arena. * The team that wins the 3v3 grants guaranteed crits for themselves and the rest of the team. ** If there are not enough players to begin a 3v3 when the timer runs out, anyone present in the underworld is teleported out and given a speed boost.
Monster Bash	The Pit	Health drain  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell
Moonshine Event	Underworld	Health drain  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell
Pit of Death	Underworld	Health drain  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell
Sandcastle	Underworld	Health drain  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell
Slasher	Underworld	Health drain  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell
Soul-Mill	Underworld	Health drain  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell	The secret exit also applies the Battalion's Backup buff.
Spookeyridge	Underworld	Health drain  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell
Terror	Underworld	Health drain  Template:Dictionary/common strings/hazards  Magic Spells	Healing  ÜberCharge  Crits  Speed	Healing  ÜberCharge  Crits  Speed  Magic Spell

^†Hazards do not include pitfalls or similar hazards, as these are found in almost all underworlds.