Aincrad Floors
Explore the iconic floors of Aincrad, the floating castle that trapped 10,000 players. From the Town of Beginnings to the final battlefield on Floor 75.
Floor Boss Guide
Strategies for every major floor boss in Aincrad
Floors 1-25
Beginner floors including Illfang the Kobold Lord
Floors 26-50
Mid-game floors and Assault Team formation
Floors 51-75
Knights of the Blood Oath era, Heathcliff's rise
Floors 76-100
Final push to Ruby Palace including Skull Reaper
Floor Details
Floor 1: Town of Beginnings
Episode 1The starting point for all 10,000 SAO players. The Town of Beginnings is a massive safe zone where players first learned the horrifying truth that they could not log out. It features the iconic teleport gate, basic item shops, and the first tutorial quests. The floor boss, Illfang the Kobold Lord, was defeated by the first raid group. This floor's atmosphere of confusion, fear, and the dawning realization of their situation set the tone for the entire death game.
Floor 47: Floria & The Infinite Dungeon
Various EpisodesFloor 47 is best known for two locations: the beautiful flower field of Floria, where players would gather for relaxation, and the mysterious Infinite Dungeon, an endless multi-floor dungeon with no known bottom. Kirito and Asuna spent their honeymoon on this floor after their marriage. The floor provides a contrast between the beauty that still exists within Aincrad and the dangers that lurk beneath. Its field boss areas are popular grinding spots for mid-level players.
Floor 48: Lindarth — The Smithing Hub
Episode 7 (Material Hunting)Lindarth on Floor 48 is the heart of SAO's crafting community, home to the finest smiths in Aincrad including Lisbeth's workshop. The floor is rich in rare mining materials, making it the ideal location for weapon and armor crafting. Kirito and Lisbeth's journey to gather materials for Dark Repulser began on this floor. The floor features volcanic caves rich in Crystallite deposits, though they are guarded by powerful fire-element monsters.
Floor 55: Grandzam & The Giant Tree
Episode 9Floor 55 features the city of Grandzam, a frontier town that served as the forward operating base for floor-clearing operations. The floor also contains a massive ancient tree that connects to quests involving the forest spirits. This floor marked a significant jump in difficulty, forcing the front-line players to adapt to new enemy patterns. The floor boss was a Chimera-type creature that required precise coordination to defeat.
Floor 74: The Glimmering Woods
Episode 9-10Floor 74 is famous for two reasons: the beautiful Glimmering Woods with its phosphorescent trees, and the devastating boss fight against the Gleam Eyes on the 74th floor labyrinth. This floor represents the peak of the mid-to-late-game Aincrad experience, where the danger level is extremely high but rewards are equally valuable. The Gleam Eyes fight showcased Kirito's Dual Blades skill for the first time and marked a turning point in how front-line players viewed Kirito.
Floor 75: The Final Battlefield
Episode 14Floor 75 is where the Aincrad arc reached its dramatic conclusion. The floor's labyrinth led to the boss room where Heathcliff, revealed as Kayaba's avatar, waited for the final showdown. This floor's design is more foreboding and dark than previous ones, reflecting its status as the endgame area. Kirito's battle with Heathcliff on this floor determined the fate of all SAO players, ending with Kayaba's defeat, the dissolution of Aincrad, and the liberation of thousands of trapped players.