The free version is locked to the Bflat tuning reference (432.5Hz rather than standard 440Hz). Every oscillator, delay, and reverb tail is calculated modulo this frequency, creating a hypnotic, slightly "off" tonality that many users describe as "emotional vertigo."
The v0.11 beta update focuses heavily on expanding the early-game loop and refining player interaction:
: The developer "La Vitalis" included improved sprite work in this version to enhance the visual fidelity of the characters. la vitalis immortal loss v011 beta bflat free
Players can now brew a wider array of experimental tonics, allowing for diverse approaches to treating different stages of infection.
: Story-driven exploration focused on uncovering the source of a mysterious plague. The free version is locked to the Bflat
: Be extremely cautious when downloading files from unofficial sources. Verify the legitimacy of the source, use updated antivirus software, and be wary of any executable files that seem suspicious. The developer's official pages should always be the primary source for downloads when they become available.
Due to its niche nature, the free version is not hosted on mainstream platforms like GitHub or SourceForge. Here are the three verified sources as of mid-2025: : Story-driven exploration focused on uncovering the source
: A collectible system that doubles as a bestiary. Filling out entries by observing enemy behaviors provides "Medical Insight," which could unlock passive weaknesses for those enemy types. Moral Dilemma Encounters
Additional infected enemy types have been introduced, requiring distinct tactical approaches to defeat.
| Version (Beta) | Key Features and Changes | File Size (Approx.) | | :--- | :--- | :--- | | | Added CG for "crawling sower" impregnation; new NPC dialogue; screen-occlusion effects. Fixed over 20 bugs related to collisions, parasites, and equipment. | ~3.8 GB | | v0.25 | New area: "Aconite Cave" (latter half). New enemy: "Sinflower" (two forms). New skill: "Zircon Cutting Beam." Added "Pregnancy" status effect and "Masturbation" skill. | ~787 MB | | v0.28 | Focused primarily on bug fixes and quality-of-life improvements. Added a "Hardcore Mode" toggle. | ~3.2 GB | | v0.32 | Added WASD keyboard movement; improved hit feedback on Vita; added injured female NPCs (can be found and healed in various locations). | ~3.3 GB | | v0.45 | Added a new CG scene (Vita and Protya bathing); new location: "Steam Spa." New on/off toggles for "Heart Eyes" display and "Hardcore Mode." Improved keyboard one-hand operation support. | ~3.7 GB |
A revamped introductory stage helps players master Vita's dodge mechanics and alchemical resource management.