La Vitalis: Immortal Loss [v0.45.0] [B-flat]

April 13, 2026F95

An alluring young student of the medical arts…
A golden kingdom ravaged by an unknown disease…
And the secrets of alchemy that could consume everything…
Vita, an extraordinarily youthful and gifted plague doctor, struggles to find a cure for the strange infection destroying her home.
Having spent her entire life in serious studies, she has no time for relationships or frivolous activities…but for a young, elegant beauty, there are monsters more malicious than viruses…

Thread Updated: 2026-04-13

Release Date: 2026-04-11

Developer: B-flat Patreon – DLsite – Ci-en

Censored: No

Version: Beta 0.45.0

OS: Windows

Language: English, Chinese

Prequel: The Agnietta ~Healer and the Cursed Dungeon~

Genre:

2DCG, 2D Game, Adventure, Anal sex, Creampie, Fantasy, Female protagonist, Monster, Platformer, Rape, Rpg, Side-scroller, Titfuck, Vaginal sex,

Installation:

1. Extract and run.

Changelog:

v0.45.0

N/A

v0.41.0 Beta

Fixed some map design logic in the Pilgrims’ Camp so as to allow Vita to return to the entrance normally.

Fixed errors with several map connection points.

Fixed an issue where certain bandit restraint animations would glitch when Vita is equipped with an anal hook.

Fixed collision box errors in some parts of the map.

Added a pink light showing a substitute for the original NPC Sapphyra’s Heart Lamp functions after triggering the “Sapphyra’s Disappearance” quest.

Added “Slowgrow”, a special medicine to extend the pregnancy cycle.

Miscellaneous

The so-called “Security Patch” allows players to fully experience the game. Without this patch, only partial content may be accessible. Friends who have supported me in previous works will probably understand what this is. I can’t say much, but it’s the only way to protect the project from censors.

Hint

Accessing the new map requires completing certain prerequisites. After Vita rescues all four women, she will discover Sapphyra is missing from the town and find a note left in her place. After reading the note and speaking with Baneberis, Protya, and the traveler in town, the new map will become accessible.

v0.40.1 Beta

N/A

v0.32.0 Beta
Update Content

Added advanced licking actions for when the “SinFlower” restrains poor Vita.
Added WASD mode for keyboard movement controls
Added some tutorial action prompts
Adjusted key bindings for parts of the UI controls
As per feedback, started initial improvements to how being hit impacts Vita.
Began adding plot elements for the “Missing Maidens and the Pious Pilgrims” quest.
Added several injured female NPCs that players can find and heal in various locations, such as the Nightshade Cave, Blackberry Sewers, or Via de Zinnia.
Adjusted the conditions under which female NPCs appear in BlackBerry Dale as part of the ongoing Missing Maidens quest.

v0.30.0 Beta
Update Content

Added BOSS battle and related scene: “Sinflower”
Added CGs related to the Sinflower Boss.
Fixed Vita’s expression misalignment issue (hopefully this is truly resolved this time…)
New important item: The “Sinflower Satchel.” Vita may discover something interesting from her intense battle with the strangely mutated creature…

v0.28.0 Beta
Update Content

Fixed an issue where Vita could still be rear-attacked by monsters while wearing the anal hook.
Fixed a bug where the temporary function to remove cursed equipment at the Heart Lamp couldn’t remove the anal hook.
Fixed an issue where Vita’s standing illustration could have misaligned expression textures in certain cases.
Fixed a bug where using the Shock Core would temporarily remove the anal hook for a short period.
Fixed an issue with the UI custom key binding function not working.
Fixed a typo in the Lust Bud CG option text.
Fixed an issue where pressing cancel once in some UI menus would trigger multiple times simultaneously.

v0.27.0 Beta

New CG: Uncontrollably aroused by the Nightbloom scent
New special animations of the Nightbloom wrapping around Vita’s breasts while she is forced to masturbate
New cursed relic: Vibrating Anal Hook
New anal hook vibration hindrance system
New quest dialogue related to obtaining the anal hook
New reaction and taunting lines when wearing the anal hook
New corresponding standing illustrations and skeletal animations for the above additions
New status: Anal Restraint
Fixed an issue where Vita’s collider shape could become abnormal after standing up from certain masturbation actions
Fixed an issue where Vita’s standing illustration could have misaligned expression textures in certain cases
Fixed an issue where physical inertia was not cleared during item interactions, causing Vita to drift during interactions
Improved map texture and material loading optimization to prevent crashes when loading large scenes (e.g., Blackberry Dale)
Fixed an issue where binding the R2 or L2 buttons on a PS5 controller could cause game control issues.
Fixed an issue where the Vita’s movements did not match when the tentacle panties interruptions.
Fixed an issue where the jump attack hitbox for the Nightbloom wasn’t correct.
Fixed an issue where the game accidentally exported using the 32-bit version, causing crashes on some computers.
Fixed a known Unity security vulnerability: CVE-2025-59489.
Lowered the number of monsters required to trigger the Nightbloom CG (it now requires two on Vita).

v0.25.1 Beta

Fixed a bug where the game would freeze during enter the gallery.

v0.25.0 Beta
Update Content

New area: Second half of the Nightshade Cave
New enemy: Lustbloom (two forms)
New Heart Lamp location: Dark Cave Rest Area
New skill: Zircutter beam
Storyline related to obtaining the Zircutter beam.
New portrait: Mother Superior Zirconia
New skill: Masturbation
New corresponding skeleton H animations
New abnormal accumulation status: Arousal
Fixed an error where the game would still freeze after talking to Protya about the jumping equipment.
Fixed a crash that could occur on some computers when loading lighting effects during save file loading.
Fixed clipping issues in some character portraits.
Fixed thumbnail display errors in shared-bath CG with Protya.
Fixed an issue where quickly pressing the struggle action after standing up from a CG could cause the game to freeze.

v0.23.0 Beta

Added CG of Vita being impregnated by the Crawling Colzas.
Added NPCs to Blackberry Dale with worldbuilding and plot-related dialogue.
Added a belt model when Vita is carrying the waist lamp.
Improved Vita’s facial expression with heart-eyes when in a lustful state.
Fixed a bug where the large dirt mound at the far right of Zinnia Street lacked collision, allowing premature access to the demo’s endpoint.
Fixed an error in background music playback inside the Crawling Colza’s nest.
Fixed a bug where the “vision obstruction” status wasn’t removed after Vita detached the face-hugging monster.
Fixed an issue where entering the tentacle nest from Zinnia Street using double jump could cause Vita to get stuck.
Fixed a bug where the head-parasite Crawling Colza would disappear after being shaken off.
Fixed an issue where Baneberis failed to properly retrieve the Flying Fascinus during the tentacle underwear side quest.
Fixed a bug where the recovery struggle bar didn’t appear when Vita was knocked down.
Fixed an issue where Vita could fully repair her outfit while parasitized by a Crawling Colza, causing clipping.
Fixed an issue where clothing could be fully repaired while only wearing nipple rings, causing clipping.
Fixed a bug where the glowing nipple ring charm kept emitting light even while a monster was latched onto Vita’s chest.
Fixed a bug where Vita could be interrupted by other monsters while “unlocking” tentacle walls.
Fixed a bug where climax value wouldn’t accumulate properly while unlocking tentacle walls.
Fixed layering priority issues for some Crawling Colza eggs.
Fixed misalignment of Vita’s panties while crawling.
Fixed a bug where, after removing cursed gear at the Heart Lamp while wearing the cursed collar, the equipped slot value could exceed its maximum.
Improved the Crawling Colza’s leap height to adapt to Vita’s posture.
Improved save/load UI. It will now auto-select the most recent save file.
Enhanced visual impact of the vision obstruction status.
Fixed an issue where pregnancy traps only allowed fetal movement but not birth.
Relocated Sapphyra and her Heart Lamp to the entrance of Blackberry Dale so new players can interact with her earlier.

v0.21.0 Beta

New enemy: Crawling Colza
New maps: Second half of Via de Zinnia. The first half of the Dark Tunnel is ready, with the Crawling Colza’s Nest.
New map object: Crawling Colza Egg
New lighting relic: Waist Lamp
New lighting nipple ring charm: Glowing Amethyst
New side quest: Repair the Waist Lamp
New status effect: Darkened Vision
New variations for everything related to the Crawling Colza, including art layers, skeletal structures, and perspective-affecting effects.
Temporary option to remove all cursed equipment at the Heart Lamps.
Reduced the movement penalty caused by slow-type abnormal statuses, such as the panties.
Fixed the shape of Vita’s breasts in the front-facing illustration.
Fixed a bug where the Homeward Bell sometimes failed or caused abnormal teleportation.
Fixed an issue where the Cursed Collar image disappeared when crouching.
Fixed a bug where some objects became unresponsive after viewing CG scenes.
Fixed an issue where the nipple rings disappeared when wearing both the tentacle bra and the rings.

v0.19.0 Beta

N/A

v0.17.0 Beta

New CG: Mature Parasitic Growth.

v0.16.1 Beta

Bugfixes?

v0.16.0 Beta

N/A

v0.15.1 Beta

Fixed the issue where moving to the far right on the Zinnia Street map would not reach the trial endpoint.
Additionally, the new CG requires being taken back to the nest by the voretoad and waiting at the semen pool for labor.

v0.15.0 Beta

Added cross-section view system
Added toggle option for cross-section display
Added two pregnancy states: Overpregnant, Forced Pregnancy
Added a special pregnancy mechanism inside the Plague Devourer Frog Nest
Added CG: Teatpole birth inside the nest
Added CG placeholder: Giving birth to a mature Teatpole inside the nest
Added new enemy: Mature Teatpole
Added skeletal animations and sprites related to the Mature Teatpole
Added new scenes in Zinnia Street, including Flying Fascinus Nest and Tentacle Nest
Added new map object: Phallic Altar
Added new relic: Phallic Mark (Quest to remove the mark is not ready yet)
Added new special status: Mimicock
Added new item: Homeward Bell
Added skeletal animation: Orgasm while in Mimicock state will result in ejaculation
Added all related sprites for Mimicock
Fixed an issue where Vita crouching while a Teatpole was sucking would cause animation misalignment

v0.12 Beta

N/A

v0.11 Beta

New CG: Being swallowed by the Voretoad
New Boss: Voretoad
New Enemy: Voretoad Larva
New Sprite Variation: Voretoad Larva Breastfeeding
New Map Trap: Circular Restraint Frame
New H Animation: Circular Restraint Frame
New Map Scenes: Rinnia Road
New Map Scenes: Cave Ruins by the Road
New Map Scenes: Voretoad’s Nest
New Relic: Weaver Girl’s Ring
New Buff: Enhanced Garment Protection
Fixed clipping issues with underwear during certain actions
Fixed issues with old saves (before version 0.07.5) failing to load properly
Fixed incorrect adjustment of sprite transparency after transitioning scenes
Fixed camera shake bugs during map transitions
Fixed abnormal movement speed after escaping from being grabbed in the semen pool
Fixed animation call errors when escaping from monsters while crawling
Fixed clipping issues with certain zombie models
Fixed the issue where the game controller’s left analog stick had a dead zone that was too small, causing repeated input triggers.

v0.09 Beta

New CG: Knocked down by zombies
New Enemy: Zombie
New H-Animation: 3P Suspended congress (Zombie-exclusive)
New H-Animation: 3P Doggie Style (Compatible with Tentacled Corpseater and Zombie)
New Relic Equipment: Ring of the Swordmaster
New Positive Status: Steam Parry
New Map Scene: Quarantine Zone (Second Half)
New Map Scene: Purification Room
New Map Scene: Flying Fascinus Nest 2
Added Map Traps: Some traps may trigger CG scene and cause virginity loss.
Fixed an issue where Vita would fly out of the map during scene transitions while climbing.
Fixed leg texture anomalies after getting up from being downed.
Fixed inability to run after transitioning between maps in crawling posture.
Adjustments for PS controller compatibility.

v0.07.5 Beta

New CG: Vita and Protya bathing together
New Location: Hot Spring
New Lamp Point: Blackberry Dale Hot Spring
New Feature: Hardcore mode toggle
New Encyclopedia Entry: Tentacle Cluster
New Feature: Heart-eyes display toggle
New Feature: One-handed keyboard mode
Improved Compatibility: Enhanced compatibility with old saves post 0.07 update
Improved Effects: Refined some impact effects
Fixed text display issues in some dialogue.
Fixed game freezing when items are produced right after switching scenes.
Fixed skill management to allow empty skill slots.
Fixed a display error when removing certain equipment items.
Fixed bug that caused item count to display as -1 after use.
Fixed button mapping errors with PS controllers.

v0.07 Beta

Added “Security Patch” system
Added parasitic attack for the Tentacle Ball
Added new status effect: Tentacle Bra
Added new relic equipment: Milk pump
Added new item: Fresh Breast Milk
Added new Tentacle Ghoul Skeleton H-animation: 3P Blowjob
Added new CG: Vita’s memories with Mother Zirconia
Added new skill system: FP (Focus Points) system
Added new skill: Virgin’s Violet Protection
Added numerous documents and story trigger points across the dungeons and town.
Added side quest for the Alchemist: Fresh Breast Milk
Added new feature for Rest Points: Resting. Now, using Rest Points won’t immediately reset monsters; monsters will only reset if the Rest function is used.
Added functionality to make sprites automatically become semi-transparent when obstructing the player in scenes. This is enabled by default and can be turned off in the system menu.
Improved key prompts in crawlable areas.
Improved some mechanisms where the camera briefly pans to the activated target as a visual hint.
Improved menus so they can be closed directly with the cancel button.
Improved some dialogue choices to be canceled directly with the cancel button.
Fixed a bug that could cause the game to freeze when obtaining the Strange Mark in the abandoned basement.
Fixed a bug where wearing Tentacle Panties would still trigger some CGs.
Fixed a bug where larvae would cause Vita to lose her virginity.
Fixed a bug where some map boundaries caused abnormal camera shaking.

v0.06 Beta

BugFixed

Fixed the issue where the screen remains black after certain CG scenes, requiring an additional key press to proceed.
Fixed the issue where keyboard keys could not be rebound.
Fixed the issue where some monsters couldn’t cum.

Update content

New scene: Alleyway of Abandoned Remains
New enemy: Tentacle Mutant Corpseater
New corresponding H-animation: Doggystyle
New CG scene: Defeat by Tentacle Mutant Corpseater
Fixed an issue where resizing the window freely would misalign the UI in certain situations.
Fixed an issue where crouching and falling from a platform would sometimes trigger slow descent.
Fixed an issue where dodging while crouching would consume stamina.
Fixed incorrect button prompts for Xbox controllers.
Fixed an issue where reassigning some controller buttons would still retain the old key mapping.
Fixed an issue where jumping would be disabled in certain situations.
Fixed an issue where, after triggering certain CGs, returning to Blackberry Dale would cause background texture misalignment.
Fixed an issue where the climax meter would not slowly decrease when no monsters were present.
Removed the ability to become pregnant while crouching in the white fluid pool as a virgin.

A note from DarkmoonTranslations, co-writer and translator.

Hello! I’ve just done a total rewrite of all lines and translations so far!

Some of the earlier versions had some grammatical errors and untranslated parts, but now everything should be smoother from this point forward.

For example, our slightly pretentious heroine has always had a bit of a French accent as part of this setting (“La Vitalis”); hopefully it should be a little clearer now.

v0.05 Beta

New Pose: Crouch.
New Pose: Crawl.
Added NPC Character sprites.
Added NPC Skeletons (for movement) and idle animations.
Added NPC shop feature.
Added Cover CG for the gallery.
Added Small Tentacle Ball.
Fixed an issue where attack hitboxes sometimes missed.
Fixed an issue where dashing sometimes triggered an excessively high jump.
Fixed an issue where game controller key bindings could not be modified.
Fixed an issue with insufficient dead zone settings for vertical input on game controllers.
Fixed a skeleton error with Vita during tentacle attacks in the opening storyline.
Fixed an issue where Vita did not return to the standing position after using sprint to pass certain storyline triggers.
Fixed errors in connecting some skeleton animations.
Fixed an issue where the pleasure accumulation speed became abnormally fast after repeatedly triggering tentacle attack CGs from the trigger pool.
Fixed overexposure issues in certain scenes.

v0.04 Beta

New Map: Blackberry Dale
New NPCs: Sapphyra, Protya, Baneberis
New Side Quest: Investigate the Abandoned Basement
New Special Equipment: Tentacle Panties
New poses when lying down
New level-up functionality
New item enhancement features
New gallery functions including scene names
New dodge action for Vita
Improved presentation of various values in the statistics List
Fixed an issue where dead monsters would momentarily revive when switching scenes
Fixed an issue where some tentacle roots didn’t wither after death
Fixed an animation glitch when landing from a high altitude
Fixed an issue where the pregnancy status was still displayed after giving birth
Fixed an issue where sprites could fall off of the map in certain areas of the tentacle nest
Fixed a bug where sprites would sometimes fly abnormally when hit by a tentacle pulling attack
Fixed some sound effect errors
Fixed an issue where character portraits would disappear after closing the backpack
Fixed an issue where soak time in the cumpool was not counted
Fixed mid-layer background position errors

v0.03 Beta

Added CG: Tentacle attack from the cum pool!
Added tentacle enemies.
Added map trap: cum pool.
Completed second half of sewer map that now connects to the surface area.
Improved trigger detection for climbing.
Improved text display speed in the opening scene.
Improved Vita’s momentum retention when entering an uncontrollable state.
Fixed an issue where Vita’s aerial attack could sometimes result in abnormal gravity if interrupted.
Fixed a bug where Vita would sometimes climb walls automatically.
Fixed a rare animation bug when jumping while climbing.
Fixed an issue where some platforms would incorrectly trigger climbing.
Fixed the gamepad issue where “Press any key” could not be triggered.
Fixed a bug where Vita would glide when jumping on certain slopes.
Fixed a UI bug that occurred when exiting the system menu without closing the dropdown menu.
Fixed a rare black screen issue when skipping the opening scene.
Fixed incorrect ejaculation animation positions.
Fixed incorrect CG text calls.
Fixed an AI bug with the flying worm’s bugged behavior after being knocked down.
Fixed some clipping issues with pregnancy images.
Fixed some missing cut-in performances.

v0.02 Beta

Added Penisworm CG scene.
Fixed bug where the UI was misaligned at different resolutions.
Fixed bug where the UI interface doesn’t update immediately after obtaining items.
Fixed bug where the third attack strike goes through walls.
Fixed bug where player’s key bindings did not display correctly.
Fixed bug when using Left Shift to bind any key would cause the button prompt to disappear.
Fixed font errors.
Fixed bug when opening menu caused vertical Vita sprite to disappear.
Fixed bug where “Leave Game” in the options did not close game properly.
Improved the quality and fluidity of controls.
Added new adaptations for various brands of controllers (Xbox, PS, NSPro).
Added resizable window function.
Optimize animations, including running, jumping, attacking, climbing and miscellaneous movements.
Vita’s vertical sprite has been redrawn. A second butt view from behind has also been added.
Optimize initial key bindings
Adding option to turn off screen flash during climax
Added animation of Vita being a bit embarrassed when naked.
Now players can easily click and switch between admiring Vita’s front and back.
Fix miscellaneous reported bugs.
Optmize the saving and loading system
Finish Japanese translation.