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90% positive of 30 · Positive · Live from Steam
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The daring explorer Serena and the kindhearted succubus Nerisha meet by chance in the depths of the Underground. Succubus Research Diary is an adult visual novel about the unusual and very intimate relationship between the two women.
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What changed on Steam for this game since we started following it: prices and sales, builds, name, release date and review score.
Review score: 90% on 2026-11-01 → 90% today (30 reviews)
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Not tested by Valve yet. Results from Valve's own testing.
Valve hasn't published test details for this game.
Every build released on Steam for this game since we started tracking it, with the developer's patch notes. Updated within minutes of each new build.
Fixed an issue with Steam Achievements that was caused by the game engine update Fixed an UI element on Steam Deck
Updated the game engine for better compatibility with modern operating systems Introduced a number of fixes and improvements to the assistive self-voicing feature for the visually impaired If you have any issues with the new version of the game, the previous v…
A small post-final(?) update that fixes a bunch of typos and grammatical errors in the final content update. ːunit_of_manaː
The biggest, sexiest, and finalest update is just around the corner! Approximately 85% complete at the time of writing this, the update will be ready for release in early December. It will be more than twice as big as the previous content update and feature th…
This is a small update that corrects a couple of dozen grammatical errors and typos. ːunit_of_manaː
Trading cards Succubus Research Diary became eligible for the virtual goodies known as Steam Community Items a while ago. And now they are ready and approved for release! If you are planning on exploring the Underground, take some Trading Cards, Badges, Emotic…
The protagonist of Succubus Research Diary, Serena, will be a major character in the fifth Arcus Plume game, Oasis of Lilies! The daring explorer has left the dangers of the Underground behind for now, and has a steady job in a mysterious members-only club for…
The two games that feature the adventures of the pink-haired succubus, Nerisha, are now available as a bundle! ːheart_of_succubusː https://store.steampowered.com/bundle/42606/Nerishas_Adventures/
The fourth game by Arcus Plume is a light-hearted visual novel about a young noblewoman and her handmaid who are starting to take an interest in adult stuff. It is a story about close but platonic relationships turning into physical ones. It is also a story ab…
The Serena's Services story arc ends with a bang! ːstar_of_masteryː (Disclaimer: no explosions included.) This content update isn't called The Grand Finale for no reason. It's not only the final update but also easily the biggest one. With a word count of over…
Sometimes, a chance encounter with an old friend may open up new possibilities. What lies in store for Serena and Nerisha? Only time will tell... It's the first anniversary of the release of Succubus Research Diary, and here's a little something to celebrate i…
If you're an enthusiastic succubus researcher, there is good news and good news for you. No bad news at all. Yay! ːheart_of_succubusː The first piece of good news is that Succubus Research Diary will get still get at least two more free content updates. The ne…
It's Nerisha's turn to be the protagonist! The story so far has been told almost exclusively from Serena's point of view. But not this time! It's time for the cute succubus Nerisha to bask in the spotlight! Oh, and she will also meet Jenny for the first time. …
The second content update is here! Serena's Services expands the story in a new direction as well as introduces a new character, Jenny, to the game. What does Serena do to make the big bucks and what does it have to do with Jenny? It's time to find out! New an…
Succubus Research Diary will get another content update in early December. The upcoming update will add a new short story (split into two episodes) that takes place after Ending 1. The story will be entirely focused on Serena's secondary profession (whatever t…
This is a content update that adds epilogues to the game: one for each ending. Find out what Serena and Nerisha are up to shortly after the endings! This update adds the following: More content: approx. 5000 words and 3 event CGs (+23 variants) 2 new achieveme…
Succubus Research Diary will get a content update in a couple of weeks. As the title suggests, the upcoming update will add epilogues to the game: one for each ending. It is to be expected that Serena and Nerisha will have some "non-platonic fun" in these foll…
Succubus Research Diary finally has a release date. Although it's not quite in late August as earlier planned, it's still in the very near future. Only three weeks now until the exciting, erotic, and adult-rated adventures of Serena and Nerisha can begin! Prep…
Succubus Research Diary will be released in August instead of June. There are mainly two reasons for this change. First, the earlier estimate was too optimistic (not to say unrealistic) to begin with. Second, the game will be somewhat longer than initially pla…