This site's not dead yet! Even though it's been inactive for 6 months, I haven't given up! New dungeons will be added soon.
List of 3-Player versions of Collab (and Seasonal Event) dungeons:
Multiplayer! Monster Hunter Collab
- Massacre Demon Hunt - Special Permit
Multiplayer! Monster Hunter Support Survey
- The Three Lords
Multiplayer! Attack on Titan Collab (Japanese only)
- Titan Ambush - Annihilation
Multiplayer! Final Fantasy Collab
- Ridorana Cataract - Annihilation
Multiplayer! Kinnikuman Collab (Japanese only)
- Survivor Match for the Kinniku Throne - Annihilation
Multiplayer! Sunday All Stars Collab (Japanese only)
- Gathering of Strong Ones - Annihilation
Multiplayer! Yu Yu Hakusho Collab
- Dark Tournament - All-Out Battle
Multiplayer! Persona Collab
- Mementos - Annihilation
Multiplayer! Magazine All Stars Collab (Japanese only)
- Gathering of Strong Ones - Annihilation
Multiplayer! Gintama Collab
- Kabuki District - Annihilation
Multiplayer! Sword Art Online Collab
- Virtual World - Annihilation
Multiplayer! Kamen Rider Collab
- Puzzle & Dragons Chronicle X Lvl 100
Multiplayer! Showa Kamen Rider Colosseum!
- Showa Kamen Rider Assemble! - Annihilation
Multiplayer! Yo-kai Watch World Collab
- The Great Yo-kai War - Evil Ghost
Multiplayer! Fate/stay night [HF] Collab
- The 5th Holy Grail War - Annihilation
Multiplayer! Street Fighter V: AE Collab
- The Path to Greatness - HELL
Multiplayer! Shaman King Collab
- Shaman Fight Tournament - Annihilation
Multiplayer! Champion All Stars Collab (Japanese only)
- Martial Arts Sacred Place - Annihilation
Multiplayer! Samurai Shodown Collab
- Sinister Cloud Over the Land - Annihilation
Multiplayer! Fantasia Legend Collab
- Dragon's Peak - Annihilation
Multiplayer! Shinkalion Collab (Japanese only)
- シミュレーション訓練 - Annihilation
Multiplayer! Power Rangers Collab
- Battle for Earth - Mythical Plus
Multiplayer! Yu-Gi-Oh! DM Collab
- Battle City - Annihilation
Multiplayer! Bleach Collab
- Soul Society - Annihilation
Multiplayer! Devil May Cry Collab
- Bloody Palace - Hell and Hell
Multiplayer! Crows Collab (Japanese only)
- Nakazaki Factory - Annihilation
Multiplayer! Evangelion Collab
- Angels Invade - Annihilation
Multiplayer! My Hero Academia Collab
- VS Overhaul - Annihilation
Multiplayer! The King of Fighters Collab
- World Domination - Annihilation
Multiplayer! Monogatari Series Collab
- Monogatari - Annihilation
Multiplayer! Marvel Collab (Japanese only)
- VSスーパーヴィラン - Annihilation
Multiplayer! Duel Masters Collab
- Legendary Revolution - Annihilation
Multiplayer! Jujutsu Kaisen Collab
- Kyoto Sister-School Goodwill Event - Annihilation
Multiplayer! Dragon Quest: The Adventure of Dai Collab
- The Battle of Valge Island - Annihilation
Multiplayer! Star Wars Collab
- The Empire - Annihilation
Multiplayer! The Prince of Tennis Collab
- National Tournament - Annihilation
Multiplayer! One Punch Man Collab
- Hero Activity - Annihilation
Multiplayer! Ultraman Collab
- Giant of Light - Annihilation
Multiplayer! Hunter x Hunter Collab [Phantom Troupe]
- Spider - Annihilation
Multiplayer! Kingdom Collab
- Coalition Army Invasion - Annihilation
Multiplayer! Another Story!
- Vs. GungHo Characters - Annihilation
Multiplayer! Extreme Christmas Rush!
- Holy Night's Merry Melee - Annihilation
Multiplayer! Ultimate PAD Academy Rush!
- Opening Ceremony - Annihilation
Multiplayer! Extreme June Bride Rush!
- Wedding Party - Annihilation
Multiplayer! Ultimate Island Rush!
- Resort - Annihilation
Multiplayer! Deadly Sin Dragons & Key Heroes
- Ordeal of Seven Sins - Annihilation
Multiplayer! Star-Twined Fairies
- Starfairy Rush! - Annihilation
Multiplayer! Illusionary Artist Rush
- Illusionary Art Gallery - Annihilation
Multiplayer! Spectre Rush
- Tenroku - Annihilation
Number of main dungeons in this category: 49
Number of sub-dungeons: 49 (MC001-MC049)