You play as a guy who accidentally releases a succubus (with a bit of a catch) and gets access to both her and her spell book.​

Thread Updated: 2019-01-26
Release Date: 2019–01-25
Creator (developer): :
Censorship: None
Version: v0.0.36.1a
OS: Windows, Mac & Linux
Language: English
Genre:

Possession, Mind Control, Incest, Body Swap, Infidelity, Resource Management

Instructions:

1. Extract to desired location
2. Run the exe file and enjoy

Whats new (last changes):

Book of Lust v0.0.36.1a (Patreon Build)
-Fixed a chunk of typos.
-Fixed Animation swap script not loading the correct scene fast enough.
-Fixed Succubus’ dialogue portrait incorrectly showing up during Julia’s visit.
-Added animation speedup to Cassandra’s Sex scene while playing as Jake while cumming.
-Added animation speedup to Olivia’s Sex scene while playing as Jake while cumming.
-Added animation speedup to Cassandra’s compulsion sex scene while playing as Jake while cumming.
-Added additional scene to the “Make her leave” bad end while playing as Jake or Mel.
-Lined and colored outside the Hart’s home.
-Finished most of of Cassandra’s Soul Passenger Scenario.
Book of Lust v0.0.35.1a (Patreon Build)
-Added script to help organize Background Day/Night scenes. (Mainly to streamline the process for myself)
-Added to script to help manage animation Day/Night and Pregnant/Not pregnant scenes. (Only tested with new Delve scene)
-Added ability for Olivia to form a relationship with Mel while bodyswapped with her as opposed to only when in Soul Passenger
-Added a few more pictures to Olivia’s Delve Sex scene while playing as Jake.
-Finished Olivia’s Delve Sex scene while playing as Jake.
-Lined and colored Olivia’s Room.
-Removed the old save/load functionality.
-Streamlined how variables are handled between scenes.
-Streamlined how the game handles Dialogue images when bodyswapping/possessing.
-Added Date/Time display to Load Menu.
Book of Lust v0.0.34.1b (Patreon Build)
-Fixed Mel’s lust gain not showing up when seducing him.
-Fixed Softlock when telling Mel to leave during Cassandra’s Soul Passenger scenes.
Book of Lust v0.0.34.1a
-Finished Olivia’s Possession scene.
-Finished Cassandra’s Possession Scene.
-Finished Olivia’s Body swap scene.
-Added Pregnancy variant scene to Cassandra’s Body Swap.
-Added some behind the scenes code to to streamline some of the cutscenes. Only applied to Body Swap and Possession Scenes.
-Fixed succubus portrait incorrectly appearing during possession sequence.
-Fixed UI not disabling during the possession sequence.
-Fixed Succubus Dialogue portrait not updating correctly.
Book of Lust v0.0.33.1b (Patreon Build)
-Fixed Mel not appearing in Cassandra’s room when sleeping early.
-Fixed Delve targets showing wrong scene when giving birth.
-Fixed Succubus stats saving incorrectly.
-Fixed “Quit” button disappearing from main menu when clicking “Back”.
Book of Lust v0.0.33.1a
-Redesigned talent tree’s look.
-Lined and colored Jake’s Room.
-Lined and colored the Hart Den.
-Lined and colored Cassandra’s Room.
-Finished Cassandra’s Body Swap scene.
-Removed the “Sleeping” picture from Cassandra’s Body Swap scene.
Book of Lust v0.0.32.1b (Public Build)
-Fixed Mel not appearing in Cassandra’s room after inviting him in.
-Fixed Unholy Seducer not working properly.
-Fixed sex scene with Succubus giving the wrong scene while playing as Cassandra while having Succubus Synergy at Rank 1
Book of Lust v0.0.32.1a
-Added a Schedule system(It’s behind the scenes stuff to make it easier on myself to organize which characters appear in certain areas).
-Fleshed out Olivia’s Birthing Scene
Book of Lust v0.0.31.1b
-Fixed Softlock when going back to title screen to load a game.
-Fixed EXP Salvage working incorrectly.
-Fixed Save profile not displaying immediately after saving.
Book of Lust v0.0.31.1a
-Updated to current version of Unity (Unsure if this is good practice or not if it’s mid project. Kept the old Unity version and project just in case).
-Added an EXP bar to the main UI.
-Changed the save system from PlayerPrefs based system to a Local file based system. Old save file is still functional just in case. I recommend trying to move over to the new save system as I’ll be getting rid of the old system eventually.
-Added New Save/Load buttons to the Main menu and Options Menu.
-Added Sex scene with Possessed Olivia while playing as Cassandra.
Book of Lust v0.0.30.1a
-Added a new sex scene with Jake while playing as Mel.
-Added a Mana bar to the main UI.
-Added a Stamina bar to the main UI.
-Added a Speed up during the animation right before orgasm during the Mel/Jake sex scene.