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Baldr Sky jumps between past (pre-Gray Christmas), present (the ruined city), and simulated realities. The Secret Files contain a linear timeline that shows exactly when events like “Sora’s accident” or “the AI rebellion” occurred. Without this, many players miss critical connections between Rain, Kou, and Flandre.
Baldr Sky: Secret Files is supplementary content tied to the Baldr Sky visual novel series, a cyberpunk action/eroge franchise developed by Giga (and later Giga’s team with collaboration). “Secret Files” typically refers to additional scenarios, side stories, character epilogues, and background materials that expand the main game's plot, explain mysteries, and deepen character relationships and worldbuilding.
The main game’s individual endings were bittersweet or abrupt. Secret Files gives each girl (Rain, Nanoha, Chinatsu, Makoto, Fumi, Sora) a peaceful epilogue. If you wanted to see Kou and the heroine simply live together without war or system collapse, this delivers. Sora’s extra story is particularly touching.
To unlock the Secret Files you must progress through Survival Mode baldr sky secret files
. These files are additional lore documents and special scenes that are not integrated into the main story routes. Steam Community Unlocking Guide for Secret Files
The primary way to earn these files is by reaching specific wave milestones in Survival Mode. Milestone Unlocks: Secret files are rewarded as you clear waves in both Survival sessions. Completion Requirement: To unlock every secret file, you must complete all of Survival Mode. Difficulty:
Unlocks are generally available even on "Very Easy" difficulty, though surviving later waves (70+) can still be challenging due to scaling enemy HP and complex boss behaviors. Steam Community Content and Viewing Where to find them: Once unlocked, these files can be viewed from the under a specific "Secret Files" or "Data" section. File Types: Lore/Information: Detailed background data on characters like Aki and Sora. Special Scenes: Baldr Sky jumps between past (pre-Gray Christmas), present
Some files are "delusion top secret files" featuring hypothetical scenarios. Patch Requirement:
To view certain NSFW-themed secret files (often called "delusion files"), the
must be installed. Without the patch, these files may remain locked or have restricted content. Survival Mode Tips To reach the higher waves and finish your collection: Upgrade Weapons: Maximize the level of high-tier weapons like the Satellite Laser For example, Chinatsu’s behavior in Dive1 seems erratic
(requires Pulse Laser, Bomber Bit, and Shooting Star usage). Equip Plugins:
Use the plugin that allows you to carry over experience earned in Survival to your main story save to strengthen your simulacrum for later attempts. Piercing Attacks: Use moves like to break through enemy shields quickly. Steam Community weapon combos optimized for clearing the later waves of Survival Mode? Baldr Sky guide - Steam Community 7 Jan 2020 —
For example, Chinatsu’s behavior in Dive1 seems erratic until you read her Secret File, which reveals suppressed memories from the first simulation loop. Similarly, Makoto’s file explains why he’s so loyal to the military despite his gentle nature.
