The grounds of Zeppelin's Castle are the setting for the Opening Stage in Rosenkreuzstilette Freudenstachel. The stage takes the player across a bridge, through several hallways as well as a corridor in the air, and even into the castle garden where Eifer Skute (or Freudia Neuwahl if playing as Pamela Arwig) awaits her.
- In der schneenacht (At the Snow Night)
- Rosenkreuzstilette ~Weißsilber~: Ein adliges Madchen (An Aristocratic Girl)
- Stage Theme (C76 Trial): "The Ground Which Can Shine" by Silver Chaos
- Stage Theme (Web Trial/Full Game): "Fate" by Silver Chaos
- Dialogue Theme (Eifer/Freudia): "Winter Waltz" by Sky God Corridor
- Dialogue Theme (Pamela): "Brawl of the Princess" by RP-MUSIC
- Dialogue Theme (Strudel): "Labyrinth" by Unlimited Hellest
- Ball Bat
- Crawling Skull
- Gargoyle Statue (C76 Trial Versions)
- Ice Behemoth (Mini-Boss) (Ver. 0.06a/0.07a/Full Game)
- Ice Peterchy (Ver. 0.06a/0.07a/Full Game)
- Demon's Cross (C76 Trial Versions)
- Skull Cannon
- Skull Flamer
- The castle grounds are located near Michael Zeppelin's castle itself. That explains why the stage has the castle in several of its backgrounds. Another location also set near the castle is the Ghost Town.
- The Snow Chapel served as a prototype for the castle grounds in the C75 Trial Version. Backgrounds and tiles from said area were used to create this stage for the C76 Trial/Web Trial/Full Version of the game.
- The early version of Castle Grounds in C76/early Web Trial versions is ported back to the Steam version of Rosenkreuzstilette Freudenstachel as a special bonus feature that can be activated/deactivated.
|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|