The floating sky palace known as Luftfeste Sleipnir (German meaning for Sky Fortress Sleipnir), is the setting for Luste Teuber's stage. It is a grand white palace floating in the sky with many disappearing and falling platforms. Floating islands can be seen in the background of Sleipnir itself.
- Luftfeste Sleipnir (Sleipnir, the Flying Fortress)
- Rosenkreuzstilette ~Grollschwert~: Verbotenes Spiel (The Forbidden Game)
- Stage Theme: "26" by AM3
- Dialogue Theme: "11" by AM3
The main hazard in Luste's stage are the clouds that can obscure the player's vision and the never ending sight of an abyss.
Rosenkreuzstilette ~Freudenstachel~Luftfeste Sleipnir returns in Rosenkreuzstilette ~Freudenstachel~, remaining the setting for Luste's stage, with a different layout and new backgrounds, just like the Heiligtum des Wasserteufels.
- Fliegel! Lufteste Sleipnir (Mead! Sleipnir, the Flying Fortress)
- Rosenkreuzstilette ~Weißsilber~: Geburt! der Metalheld! (Birth! The Metal Hero!)
- "Kaede" by Rengoku Teien
- Dialogue Theme: "AM Fight No. 1" by AM3
In addition to numerous bottomless pits Luste's stage features platforms that rise up and downwards. Towards the end of the stage they're combined with destroyable bloks to create a section rather similar to Dust Man's trash compactor in Mega Man 4.
- Luftfeste Sleipnir is named after the mythical creature, Sleipnir, the eight-legged steed of Odin in Norse mythology. Sleipnir was the child of Odin's foster son Loki and Svadilfari, the best and brightest of the Frost Giants' steeds.
- Luftfeste Sleipnir alludes to many air-themed stages from the Mega Man franchise, such as Air Man from Mega Man 2 and Storm Eagle from Mega Man X.
- The floating island at the game's climax bears a striking resemblance to the islands in the background of the last area of Luftfeste Sleipnir before the chamber leading to Luste, so the floating island could very well be located near Sleipnir itself.
|Rosenkreuzstilette||Imperial Training Hall · Black Forest · Snowfield · Nosdu Mountains · Heiligtum des Wasserteufels · Luftfeste Sleipnir · Ghost Town · The Fortress City of Zuverburg · Research Tower · Schwarzer Kinderspielplatz · Zeppelin's Castle (Castle Entrance, Royal Chapel, Castle Bridge, Castle Keep) · Iris Palace (Labyrinth of Chains, Garden of Chaos, Iris Quarters, Iris Palace Sky) · Floating Island|
|Rosenkreuzstilette ~Freudenstachel~||Snow Chapel · Castle Grounds · Forest of God · Nosdu Mountains (C75 Trial) · Gruft der Feurdrache · Heiligtum des Wasserteufels (RKSF) · Luftfeste Sleipnir (RKSF) · Ghost Town (C75 Trial) · Mountainside Dungeon · Zuverburg Clock Tower · Research Tower (C75 Trial) · White Desert · Zeppy Ruins · Burkhardt Castle · Phalanx Cathedral Ruins · Battlefield · Library of Shadows · High Chapel · Iris Palace II (Sanctuary of God · Bloody Ruins · Dark Iris Quarters · Iris Palace II Sky) · Snowy Pillars|