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Completed
v0.6
Feminization Device
Game Information
Developer
FTGirlVersion
v0.6
Engine
Unity
Release Date
Feb 4, 2025
Last Update
Jan 12, 2026
Censorship
Uncensored
Overview
Feminization Device throws you into a world of corruption, action, and transformation as you control a battle maiden tasked with eliminating demonic creatures plaguing your city.
Gameplay & Mechanics
Combat against monstrous foes is intense and satisfying, with animated 2DCG and 3D sequences bringing the action to life. Your character can transform and evolve through encounters, opening up new abilities and strategies. Make strategic choices that impact the story's outcome, leading to multiple endings.
Key Features
- Transformative battle maiden with evolving abilities
- Intense combat against monstrous foes in animated 2DCG and 3D sequences
- Strategic choices impacting multiple endings
- Explore themes of corruption, gender bending, and sexual encounters
Installation
1. Extract and run.
Changelog
### 0.6
- v0.6
- New Items Added
- Because the warehouse looked too empty! Version 0.6 has added some new items! In addition to the basic four items that are activated by pressing a button, three automatically triggered items have been added! These items will trigger on their own under certain conditions based on probability~
- (Actually, the font in the warehouse has been adjusted as well)
- 【Anti-Magic Shield】
- Anti-Magic Shield: Automatically triggers with a 2/3 chance when touching tentacles, infectors, or lust toxin nematodes, repelling the demonic creatures touched. Does it look familiar? Yes~❤ This is actually...
- turned into an item!
- When you first saw this 【Feminization Device Icon】, it might have been unclear what it meant. It triggers with a certain probability when touching roadside tentacles. This was because when initially conceiving the 【Tentacle-infested Red Zone】, I realized that if we really placed so many tentacles in the scene, players would be entangled by tentacles every few steps! That would greatly diminish the experience. Thus, a mechanism was set up where 【if you touch a tentacle, there's a 1/3 chance of being entangled by the tentacle, and a 2/3 chance that the feminization device icon pops up】, allowing the scene to be filled with tentacles while still letting players pass through~ This is actually a port that will be transformed into an item in a future update~
- 【Electric Shock Patch】
- Electric Shock Patch: Automatically triggers when touching tentacles, infectors, or lust toxin nematodes (prioritizes activation over the Anti-Magic Shield), repelling the demonic creatures touched. Each time the player arrives at a new scene, the shop refreshes items~ Wanting to increase the chances for players to get items that 【prevent entanglement by tentacles】, another functionally similar item was added~ However, the Electric Shock Patch triggers 100% of the time~ Be careful if you want to see the CG of being entangled by tentacles~❤
- 【Lust Toxin Suppressant】
- Lust Toxin Suppressant: Automatically triggers when lust level is full (does not trigger when wearing a feminization latex suit), forcing the lust level to reset to zero.
- When players navigate through the Red Zone, they might often have to stop due to a full lust level~❤ If you have the Lust Toxin Suppressant, there's a 100% chance that the lust level will be forced back to zero~ Be cautious if you want to see the masturbation CG~❤
- Demonic Transformation
- After players complete the game, the hidden characters they unlock are two female demons: Maris and the Succubus. Compared to other characters, these two female demons possess the ability to transform into their demonic forms. The biggest advantage of demonic transformation is rapid health regeneration, along with a certain chance of having vampiric abilities (according to the setting, demons have the ability to regenerate automatically, and can self-repair severed limbs via tentacles). Maris's basic attack involves throwing lust toxin bombs at long range (similar to the attack of a typical female demon mini-boss), but after transforming into her demonic form, Maris switches to melee combat, sprouting whip-like tentacles from her arms for attacks, which include vampiric abilities~
- The Succubus, already equipped with a vampiric sword, inherently possesses melee vampiric abilities. However, after transformation, her vampiric abilities disappear, and her melee attack shifts to long-range (similar to Maris's throwing of lust toxin bombs), and as a charge-up type character, she can now charge up both melee and long-range attacks.
- Added a 1-second cooldown to Felicia and Maris's charged attacks, similar to melee
- Previously, there was a bug where if players used Felicia and Maris to lay mines and then quickly attacked with the left mouse button, they would enter a "rapid attack state." It seems the cooldown system used for laying mines, similar to an item slot, did not affect the melee cooldown system. Laila seems not to be affected by this, possibly because she only needs to charge for more than 0.2 seconds to lay paralysis traps, while Felicia and Maris require about 1 second of charging? In any case, now these characters also have a 1-second cooldown after laying mines, which should have resolved this bug…
- Players Can Pass Through Teammates
- This might have been overlooked previously.
- Felicia's Charge Skill Description Update
- After version 0.4, Felicia's charge skills were modified... but the descriptions on the store page and the character selection screen were not updated. These have also been updated in version 0.6!
- Bunny Girl/Heavy Handgun UI Update
- Previously, I didn't realize that the heavy handgun button was slightly larger, but this has also been updated in version 0.6!
- In-Game Mouse Change
- When you start the PC version of the game, you should notice that the mouse cursor has changed!
### 0.5
- v0.5
- Players can pass through NPCs but not enemies
- In version 0.4, due to the restriction on melee perspective, we set it so that players could not pass through enemies! However, the inability to also pass through NPCs brought significant trouble. After some time and effort, we finally managed to differentiate between 【Enemy】 and 【NPC】! To be precise, although both use the same body, they will set whether to display a collision body to block the player based on their identity. When detected as an Enemy, a collision body will be displayed to block the player. When detected as an NPC, the collision body will be hidden, allowing players to pass through.
- In the White Zone, players can pass through undetected demonic creatures lurking about. Once detected and engaged in combat by a player, they cannot be passed through!
- Ongoing Prestige Consumption Companion System
- In previous updates, many players reported that prestige didn't serve much purpose and was excessively redundant. Although players need to spend 1000 prestige to rehire a companion after they disappear, the rate of acquiring prestige far exceeds its consumption. To address this, we specially designed another prestige consumption method: the Companion System.
- In the Companion System, players can choose one out of five companions to accompany them, consuming 500 prestige every time they enter a new scene, until the prestige falls below 500 and the contract automatically terminates. This prestige system brings three benefits:
- It provides players with more options for ongoing prestige consumption.
- In a sense, players have the ability to "transport" and "protect" companions on the map. As long as the companionship continues, the companion will not disappear. After the contract is terminated, the companion will decide whether to stay or move to another area when the player leaves that area.
- It gives players significant support firepower in the scenes (especially in boss battles, where previously players had to face the boss alone).
- The Companion System is displayed when you click on the "Battle Princess Association."
- Bunny Girl's Option to Exchange Prestige for Money
- In addition to the "Companion" and "Companion System," this update has added an option for "Bunny Girl" to exchange prestige for money (the opposite operation to the journalist who exchanges money for prestige). However, 1000 prestige can only be exchanged for 300 coins. Players can exchange unwanted prestige for money in one go (although it's not particularly economical).
- Demon Realm Expedition Mode (Survival-type Gameplay)
- Originally, the plan was to unlock additional maps after clearing the game, but due to a lack of time to create new scenes, we temporarily assembled the appearance of the demon realm using models of ruins and tentacles.
- The entrance to Demon Realm Expedition mode can be accessed by clicking on government information.
- The entrance is designed like a portal to the demon realm. Upon entering, players arrive at a non-randomly generated scene where monsters continuously spawn.
- There is also a special rule: any damage taken by the player is considered an immediate failure, and the scene resets immediately upon death (CG is omitted). This mode tests players' ability to avoid accidental damage, with points awarded for enemies killed before dying.
- Points feel like (highest record), and the highest scores may unlock different equipment or characters in the future.
- Earn points by defeating enemies (Easy ×1, Normal ×2, Hard ×4)
- Differently, if players wish to leave the Demon Realm Expedition mode, they must return to the scene's exit and click to exit, otherwise, they will continue indefinitely in
- this scene.
- PC Version Control Adjustments
- Sudden Kneeling
- Previously on the PC version, entering shooting mode, holding down the shoot button to charge, and simultaneously returning to movement mode could cause a sudden kneeling bug!
- The more buttons a player can operate, the more likely various bugs can occur. On mobile, your right thumb can't hold both the switch and attack buttons at the same time, but on PC, you can press the left and right mouse buttons together, which is why this bug went unnoticed for so long!
- Mouse Disappears After PC Version
- Smartphone Tutorial This actually overlapped with the forced disappearance of the mouse after the tutorial popped up and the forced appearance of the mouse when opening the smartphone. Now, triggering the PC version smartphone tutorial 1 second after completing the mission has essentially solved this problem!
- Mouse Disappears After Death on PC Version
- This might have been fine right after the PC version was completed, but updating something else later caused the bug to reappear (although it's unclear why, delaying the mouse appearance by 0.2 seconds seemed to fix the issue~).
- Stage and Character Adjustments
- Tower Remains on Map After Death
- A player reported that after defeating the tower, it still remained on the map, and reappeared when re-entering the scene. This was because the tower was set to disappear 3 seconds after death (initially to avoid overlapping with a bug that spawned small monsters). Now, it immediately disappears from the map and is reported as defeated the moment it is beaten.
- Maris's Succubus Form
- In the previous Ver.0.4, Maris was used to test the creation of a female front kick attack, but in Ver.0.5, it has been reverted to a flying succubus state.
- Adjustment of Bunny Girl's Back Collar Position
- During tests of the Bunny Girl, the issue was not noticed with long-haired characters. Now, the combination of the Bunny Girl outfit with short-haired characters has revealed the problem, which has been corrected in Ver.0.5.
- Anonymous Text Adds Ending Trigger Condition Hint
- It seems most players were unclear on how to trigger the "Nurture the Enemy at One's Own Peril" ending. This update adds a reminder in the anonymous text that states [before reaching District 27 in the Green Zone].
- Adjustment of Box Size in Yellow Zone Assault Mission
- Players had reported that the collision body of boxes in the Yellow Zone assault mission was too small (actually, it was the same size as the portals). This update stacks the boxes vertically, making the collision size more appropriate.
- Lighting on CG Appreciation Interface
- Previously, players commented that the CG appreciation interface was too dark (actually influenced by morning/evening settings). After this update, the CG appreciation interface is always set to [morning].
- The Steam version has also been completely decoded.
### 0.4.2
- v0.4.2
- In response to player feedback, we have removed mosaics from all CG animations, enhancing the visual experience.
### 0.4
- v0.4
- Added new character "Bunny Girl" (Weapon: Heavy Pistol/Piercing Bullets).
- Added new character "Battle Princess Squad Leader" (Weapon: Katana/Iai Slash).
- Added police batons to police equipment.
- Added defensive animations for female demons.
- Added front kick attacks for female enemies.
- Adjustments to some CG ropes.
- Increased the attack range of melee characters by 1.5 times and added sprint attacks during dodge state.
- Players can no longer pass through enemies and NPCs.
- Receiving text messages from journalists is now triggered in 21 green zones.
- Removed settings that allowed full recovery of health and shields through critical hits.
- Significantly reduced the health of Incubi.
- Changed Felicia's charged attack.
- Adjusted the scale of all terrains, furniture, and characters.
- Added functionality to automatically load the latest version.
### 0.3
- v0.3
- Everyone Captured: Unlocked by completing a specific ending.
- Nurturing Bandits: Unlocked by completing a specific ending.
- City Liberation: Unlocked by completing a specific ending.
- A new ending, "Town Liberation," has been added. Unlock the "Memory Room" by reaching any ending.
- The final boss demon general will no longer move.
- The progress speed of the red area has been reduced.
- New items can now be acquired even when skipping.
- Entering the green area will now directly generate an exit beneath the player.
- Increased the probability of ally recruitment messages appearing.
- Added a new phase, "Ceasefire Agreement."
- Removed recovery items from the Memory Room.
- Adjusted the layout and design of the settlement screen.
### 0.2
- v0.2
- We discovered a bug where players could proceed without selecting a character.
- This update has fixed the issue, and the confirmation button will no longer appear if no character is selected.
- Please update your game to the latest version for a better experience! Thank you for your support!
### 0.1
- v0.1
- Initial Release
- v0.6
- New Items Added
- Because the warehouse looked too empty! Version 0.6 has added some new items! In addition to the basic four items that are activated by pressing a button, three automatically triggered items have been added! These items will trigger on their own under certain conditions based on probability~
- (Actually, the font in the warehouse has been adjusted as well)
- 【Anti-Magic Shield】
- Anti-Magic Shield: Automatically triggers with a 2/3 chance when touching tentacles, infectors, or lust toxin nematodes, repelling the demonic creatures touched. Does it look familiar? Yes~❤ This is actually...
- turned into an item!
- When you first saw this 【Feminization Device Icon】, it might have been unclear what it meant. It triggers with a certain probability when touching roadside tentacles. This was because when initially conceiving the 【Tentacle-infested Red Zone】, I realized that if we really placed so many tentacles in the scene, players would be entangled by tentacles every few steps! That would greatly diminish the experience. Thus, a mechanism was set up where 【if you touch a tentacle, there's a 1/3 chance of being entangled by the tentacle, and a 2/3 chance that the feminization device icon pops up】, allowing the scene to be filled with tentacles while still letting players pass through~ This is actually a port that will be transformed into an item in a future update~
- 【Electric Shock Patch】
- Electric Shock Patch: Automatically triggers when touching tentacles, infectors, or lust toxin nematodes (prioritizes activation over the Anti-Magic Shield), repelling the demonic creatures touched. Each time the player arrives at a new scene, the shop refreshes items~ Wanting to increase the chances for players to get items that 【prevent entanglement by tentacles】, another functionally similar item was added~ However, the Electric Shock Patch triggers 100% of the time~ Be careful if you want to see the CG of being entangled by tentacles~❤
- 【Lust Toxin Suppressant】
- Lust Toxin Suppressant: Automatically triggers when lust level is full (does not trigger when wearing a feminization latex suit), forcing the lust level to reset to zero.
- When players navigate through the Red Zone, they might often have to stop due to a full lust level~❤ If you have the Lust Toxin Suppressant, there's a 100% chance that the lust level will be forced back to zero~ Be cautious if you want to see the masturbation CG~❤
- Demonic Transformation
- After players complete the game, the hidden characters they unlock are two female demons: Maris and the Succubus. Compared to other characters, these two female demons possess the ability to transform into their demonic forms. The biggest advantage of demonic transformation is rapid health regeneration, along with a certain chance of having vampiric abilities (according to the setting, demons have the ability to regenerate automatically, and can self-repair severed limbs via tentacles). Maris's basic attack involves throwing lust toxin bombs at long range (similar to the attack of a typical female demon mini-boss), but after transforming into her demonic form, Maris switches to melee combat, sprouting whip-like tentacles from her arms for attacks, which include vampiric abilities~
- The Succubus, already equipped with a vampiric sword, inherently possesses melee vampiric abilities. However, after transformation, her vampiric abilities disappear, and her melee attack shifts to long-range (similar to Maris's throwing of lust toxin bombs), and as a charge-up type character, she can now charge up both melee and long-range attacks.
- Added a 1-second cooldown to Felicia and Maris's charged attacks, similar to melee
- Previously, there was a bug where if players used Felicia and Maris to lay mines and then quickly attacked with the left mouse button, they would enter a "rapid attack state." It seems the cooldown system used for laying mines, similar to an item slot, did not affect the melee cooldown system. Laila seems not to be affected by this, possibly because she only needs to charge for more than 0.2 seconds to lay paralysis traps, while Felicia and Maris require about 1 second of charging? In any case, now these characters also have a 1-second cooldown after laying mines, which should have resolved this bug…
- Players Can Pass Through Teammates
- This might have been overlooked previously.
- Felicia's Charge Skill Description Update
- After version 0.4, Felicia's charge skills were modified... but the descriptions on the store page and the character selection screen were not updated. These have also been updated in version 0.6!
- Bunny Girl/Heavy Handgun UI Update
- Previously, I didn't realize that the heavy handgun button was slightly larger, but this has also been updated in version 0.6!
- In-Game Mouse Change
- When you start the PC version of the game, you should notice that the mouse cursor has changed!
### 0.5
- v0.5
- Players can pass through NPCs but not enemies
- In version 0.4, due to the restriction on melee perspective, we set it so that players could not pass through enemies! However, the inability to also pass through NPCs brought significant trouble. After some time and effort, we finally managed to differentiate between 【Enemy】 and 【NPC】! To be precise, although both use the same body, they will set whether to display a collision body to block the player based on their identity. When detected as an Enemy, a collision body will be displayed to block the player. When detected as an NPC, the collision body will be hidden, allowing players to pass through.
- In the White Zone, players can pass through undetected demonic creatures lurking about. Once detected and engaged in combat by a player, they cannot be passed through!
- Ongoing Prestige Consumption Companion System
- In previous updates, many players reported that prestige didn't serve much purpose and was excessively redundant. Although players need to spend 1000 prestige to rehire a companion after they disappear, the rate of acquiring prestige far exceeds its consumption. To address this, we specially designed another prestige consumption method: the Companion System.
- In the Companion System, players can choose one out of five companions to accompany them, consuming 500 prestige every time they enter a new scene, until the prestige falls below 500 and the contract automatically terminates. This prestige system brings three benefits:
- It provides players with more options for ongoing prestige consumption.
- In a sense, players have the ability to "transport" and "protect" companions on the map. As long as the companionship continues, the companion will not disappear. After the contract is terminated, the companion will decide whether to stay or move to another area when the player leaves that area.
- It gives players significant support firepower in the scenes (especially in boss battles, where previously players had to face the boss alone).
- The Companion System is displayed when you click on the "Battle Princess Association."
- Bunny Girl's Option to Exchange Prestige for Money
- In addition to the "Companion" and "Companion System," this update has added an option for "Bunny Girl" to exchange prestige for money (the opposite operation to the journalist who exchanges money for prestige). However, 1000 prestige can only be exchanged for 300 coins. Players can exchange unwanted prestige for money in one go (although it's not particularly economical).
- Demon Realm Expedition Mode (Survival-type Gameplay)
- Originally, the plan was to unlock additional maps after clearing the game, but due to a lack of time to create new scenes, we temporarily assembled the appearance of the demon realm using models of ruins and tentacles.
- The entrance to Demon Realm Expedition mode can be accessed by clicking on government information.
- The entrance is designed like a portal to the demon realm. Upon entering, players arrive at a non-randomly generated scene where monsters continuously spawn.
- There is also a special rule: any damage taken by the player is considered an immediate failure, and the scene resets immediately upon death (CG is omitted). This mode tests players' ability to avoid accidental damage, with points awarded for enemies killed before dying.
- Points feel like (highest record), and the highest scores may unlock different equipment or characters in the future.
- Earn points by defeating enemies (Easy ×1, Normal ×2, Hard ×4)
- Differently, if players wish to leave the Demon Realm Expedition mode, they must return to the scene's exit and click to exit, otherwise, they will continue indefinitely in
- this scene.
- PC Version Control Adjustments
- Sudden Kneeling
- Previously on the PC version, entering shooting mode, holding down the shoot button to charge, and simultaneously returning to movement mode could cause a sudden kneeling bug!
- The more buttons a player can operate, the more likely various bugs can occur. On mobile, your right thumb can't hold both the switch and attack buttons at the same time, but on PC, you can press the left and right mouse buttons together, which is why this bug went unnoticed for so long!
- Mouse Disappears After PC Version
- Smartphone Tutorial This actually overlapped with the forced disappearance of the mouse after the tutorial popped up and the forced appearance of the mouse when opening the smartphone. Now, triggering the PC version smartphone tutorial 1 second after completing the mission has essentially solved this problem!
- Mouse Disappears After Death on PC Version
- This might have been fine right after the PC version was completed, but updating something else later caused the bug to reappear (although it's unclear why, delaying the mouse appearance by 0.2 seconds seemed to fix the issue~).
- Stage and Character Adjustments
- Tower Remains on Map After Death
- A player reported that after defeating the tower, it still remained on the map, and reappeared when re-entering the scene. This was because the tower was set to disappear 3 seconds after death (initially to avoid overlapping with a bug that spawned small monsters). Now, it immediately disappears from the map and is reported as defeated the moment it is beaten.
- Maris's Succubus Form
- In the previous Ver.0.4, Maris was used to test the creation of a female front kick attack, but in Ver.0.5, it has been reverted to a flying succubus state.
- Adjustment of Bunny Girl's Back Collar Position
- During tests of the Bunny Girl, the issue was not noticed with long-haired characters. Now, the combination of the Bunny Girl outfit with short-haired characters has revealed the problem, which has been corrected in Ver.0.5.
- Anonymous Text Adds Ending Trigger Condition Hint
- It seems most players were unclear on how to trigger the "Nurture the Enemy at One's Own Peril" ending. This update adds a reminder in the anonymous text that states [before reaching District 27 in the Green Zone].
- Adjustment of Box Size in Yellow Zone Assault Mission
- Players had reported that the collision body of boxes in the Yellow Zone assault mission was too small (actually, it was the same size as the portals). This update stacks the boxes vertically, making the collision size more appropriate.
- Lighting on CG Appreciation Interface
- Previously, players commented that the CG appreciation interface was too dark (actually influenced by morning/evening settings). After this update, the CG appreciation interface is always set to [morning].
- The Steam version has also been completely decoded.
### 0.4.2
- v0.4.2
- In response to player feedback, we have removed mosaics from all CG animations, enhancing the visual experience.
### 0.4
- v0.4
- Added new character "Bunny Girl" (Weapon: Heavy Pistol/Piercing Bullets).
- Added new character "Battle Princess Squad Leader" (Weapon: Katana/Iai Slash).
- Added police batons to police equipment.
- Added defensive animations for female demons.
- Added front kick attacks for female enemies.
- Adjustments to some CG ropes.
- Increased the attack range of melee characters by 1.5 times and added sprint attacks during dodge state.
- Players can no longer pass through enemies and NPCs.
- Receiving text messages from journalists is now triggered in 21 green zones.
- Removed settings that allowed full recovery of health and shields through critical hits.
- Significantly reduced the health of Incubi.
- Changed Felicia's charged attack.
- Adjusted the scale of all terrains, furniture, and characters.
- Added functionality to automatically load the latest version.
### 0.3
- v0.3
- Everyone Captured: Unlocked by completing a specific ending.
- Nurturing Bandits: Unlocked by completing a specific ending.
- City Liberation: Unlocked by completing a specific ending.
- A new ending, "Town Liberation," has been added. Unlock the "Memory Room" by reaching any ending.
- The final boss demon general will no longer move.
- The progress speed of the red area has been reduced.
- New items can now be acquired even when skipping.
- Entering the green area will now directly generate an exit beneath the player.
- Increased the probability of ally recruitment messages appearing.
- Added a new phase, "Ceasefire Agreement."
- Removed recovery items from the Memory Room.
- Adjusted the layout and design of the settlement screen.
### 0.2
- v0.2
- We discovered a bug where players could proceed without selecting a character.
- This update has fixed the issue, and the confirmation button will no longer appear if no character is selected.
- Please update your game to the latest version for a better experience! Thank you for your support!
### 0.1
- v0.1
- Initial Release