Succubus Research Diary [v1.5.1] By Arcus Plume

Arcus Plume Games released a new game called Succubus Research Diary and the version is 1.5.1. The game’s story is about The daring explorer Serena and the kindhearted succubus Nerisha meet by chance in the depths of the Underground, as Serena accidentally stumbles upon Nerisha’s doorstep. After learning of each other’s circumstances, they strike an unusual deal. A deal that involves the two of them having lots of sex.

Developer:Arcus Plume
File Size:785.9 MB
game details

Game Version Changelog:

Version 1.5.1

A small post-final(?) update that fixes a bunch of typos and grammatical errors in the final content update.

Developer Notes:


This game contains explicit depictions of consensual sex and uncensored genitals. All characters depicted are 21 years old or older. The story takes place in a female-only fantasy world, in which all women possess the intrinsic magical ability to become temporarily “futanari,” i.e., grow male genitals (note: it is possible to finish this game without playing any futanari scenes).

The adult scenes in this game are either female x female (~70%) or futanari x female (~30%).

Features (Ver. 1.5.1):

  • Length: 97000 words (6-8 hours)
  • 34 unique event CGs, 307 variants
  • 1080p resolution
  • Rich background story about the problematic relationship of succubi and humans
  • Each adult scene has 5 stages with unique conversations
  • Have sex and conduct research to unlock more adult scenes
  • Juicy sound effects and a separate volume slider for sex sounds
  • CG & scene gallery

Game Images & Screenshots


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