Succubus Research Diary
| App ID | 1495000 |
| App Type | Game |
| Developer | Arcus Plume |
| Publisher | Arcus Plume |
| Supported Systems | Windows Linux |
| Technologies | PyGame Engine, RenPy Engine |
| Last Changenumber | 30909882 |
| Last Record Update | 2 September 2025 – 22:42:54 UTC ( |
| Release Date | 6 September 2021 – 15:00:42 UTC ( |
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.
Steam price history
Week Long Deal, offer ends 15 September 2025 – 17:00:00 UTC
Current Price
$4.99 at -50%
Lowest Recorded Price
$2.49 at -75%
20 May 2024
| Currency | Current Price | Converted Price | Lowest Recorded Price | ||
|---|---|---|---|---|---|
 U.S. Dollar |
$4.99 at -50% | $4.99 | $2.49 | $2.49 at -75% | |
 Russian Ruble |
192 ₽ at -50% | $2.32 | -53.35% | $1.16 | 96 ₽ at -75% |
 Vietnamese Dong |
71000₫ at -50% | $2.69 | -46.08% | $1.34 | 35500₫ at -75% |
 Kazakhstani Tenge |
1450₸ at -50% | $2.72 | -45.49% | $1.36 | 725₸ at -75% |
 Ukrainian Hryvnia |
112₴ at -50% | $2.72 | -45.42% | $1.36 | 56₴ at -75% |
 Indian Rupee |
₹ 240 at -50% | $2.72 | -45.35% | $1.36 | ₹ 120 at -75% |
 South Asia - USD |
$2.74 at -50% | $2.74 | -45.09% | $1.37 | $1.37 at -75% |
 Indonesian Rupiah |
Rp 45499 at -50% | $2.76 | -44.65% | $1.38 | Rp 22749 at -75% |
 South African Rand |
R 50.00 at -50% | $2.85 | -42.69% | $1.42 | R 25.00 at -75% |
 LATAM - U.S. Dollar |
$2.89 at -50% | $2.89 | -42.08% | $1.44 | $1.44 at -75% |
 MENA - U.S. Dollar |
$2.89 at -50% | $2.89 | -42.08% | $1.44 | $1.44 at -75% |
 Philippine Peso |
₱167.50 at -50% | $2.94 | -40.89% | $1.47 | ₱83.75 at -75% |
 Chilean Peso |
CLP$ 2875 at -50% | $2.96 | -40.66% | $1.48 | CLP$ 1437 at -75% |
 Brazilian Real |
R$ 16,49 at -50% | $3.04 | -39.05% | $1.51 | R$ 8,24 at -75% |
 Taiwan Dollar |
NT$ 94 at -50% | $3.09 | -38.02% | $1.54 | NT$ 47 at -75% |
 CIS - U.S. Dollar |
$3.14 at -50% | $3.14 | -37.07% | $1.57 | $1.57 at -75% |
 Malaysian Ringgit |
RM13.37 at -50% | $3.17 | -36.36% | $1.58 | RM6.68 at -75% |
 Kuwaiti Dinar |
0.97 KD at -50% | $3.17 | -36.32% | $1.57 | 0.48 KD at -75% |
 Peruvian Sol |
S/.11.50 at -50% | $3.27 | -34.45% | $1.63 | S/.5.75 at -75% |
 Colombian Peso |
COL$ 13000 at -50% | $3.27 | -34.44% | $1.63 | COL$ 6500 at -75% |
 Mexican Peso |
Mex$ 61.99 at -50% | $3.32 | -33.38% | $1.66 | Mex$ 30.99 at -75% |
 Qatari Riyal |
12.49 QR at -50% | $3.42 | -31.26% | $1.71 | 6.24 QR at -75% |
 Thai Baht |
฿110.00 at -50% | $3.47 | -30.37% | $1.73 | ฿55.00 at -75% |
 Uruguayan Peso |
$U155 at -50% | $3.87 | -22.28% | $1.92 | $U77 at -75% |
 Singapore Dollar |
S$5.00 at -50% | $3.89 | -21.88% | $1.94 | S$2.50 at -75% |
 U.A.E. Dirham |
14.50 AED at -50% | $3.94 | -20.88% | $1.97 | 7.25 AED at -75% |
 South Korean Won |
₩ 5500 at -50% | $3.96 | -20.62% | $1.98 | ₩ 2750 at -75% |
 Japanese Yen |
¥ 600 at -50% | $4.07 | -18.41% | $2.03 | ¥ 300 at -75% |
 Hong Kong Dollar |
HK$ 33.00 at -50% | $4.23 | -15.10% | $2.11 | HK$ 16.50 at -75% |
 New Zealand Dollar |
NZ$ 7.37 at -50% | $4.38 | -12.22% | $2.18 | NZ$ 3.68 at -75% |
 Costa Rican Colon |
₡2300 at -50% | $4.56 | -8.57% | $2.28 | ₡1150 at -75% |
 Canadian Dollar |
CDN$ 6.49 at -50% | $4.69 | -5.82% | $2.34 | CDN$ 3.24 at -75% |
 Australian Dollar |
A$ 7.25 at -50% | $4.78 | -4.12% | $2.38 | A$ 3.62 at -75% |
 Norwegian Krone |
55,00 kr at -50% | $5.50 | +10.32% | $2.75 | 27,50 kr at -75% |
 Israeli New Shekel |
₪18.47 at -50% | $5.55 | +11.38% | $2.77 | ₪9.23 at -75% |
 Euro |
4,87€ at -50% | $5.72 | +14.81% | $2.85 | 2,43€ at -75% |
 British Pound |
£4.25 at -50% | $5.76 | +15.49% | $2.87 | £2.12 at -75% |
 Polish Zloty |
22,99zł at -50% | $6.36 | +27.52% | $3.18 | 11,49zł at -75% |
 Swiss Franc |
CHF 5.49 at -50% | $6.92 | +38.73% | $3.45 | CHF 2.74 at -75% |
 Chinese Yuan |
N/A | N/A | N/A | ||
 Saudi Riyal |
N/A | N/A | $1.49 | 5.62 SR at -75% | |
Valve suggested prices are shown on package pages.
Price history
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Additional Information
| Developer | Arcus Plume | |||||||||||||||
| community_visible_stats | Yes | |||||||||||||||
| ReleaseState | released | |||||||||||||||
| Publisher | Arcus Plume | |||||||||||||||
| Store Release Date | 6 September 2021 – 15:00:51 UTC ( |
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| osarch | empty string | |||||||||||||||
| community_hub_visible | Yes | |||||||||||||||
| Primary Genre | Casual (4) | |||||||||||||||
| Store Genres | Adventure (25), Casual (4), Indie (23), Simulation (28) | |||||||||||||||
| Steam Release Date | 6 September 2021 – 15:00:42 UTC ( |
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| Store Asset Modification Time | 5 December 2022 – 16:47:54 UTC ( |
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| osextended | empty string | |||||||||||||||
| review_score | 7 | |||||||||||||||
| review_percentage | 97 | |||||||||||||||
| Detected Technologies (?) | PyGame Engine, RenPy Engine, Python SDK, SDL SDK | |||||||||||||||
| restricted_countries | CN,DE,SA China,  Germany, Saudi Arabia |
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| Content Descriptors | Some Nudity or Sexual Content (1), Adult Only Sexual Content (3), Frequent Nudity or Sexual Content (4), General Mature Content (5) | |||||||||||||||
| First seen on SteamDB | 5 December 2020 – 12:38:54 UTC ( |
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| Content Descriptors (Including DLC) | Some Nudity or Sexual Content (1), Adult Only Sexual Content (3), Frequent Nudity or Sexual Content (4), General Mature Content (5) | |||||||||||||||
Supported Languages
| 1 Languages | Interface | Full Audio | Subtitles |
|---|---|---|---|
| English | Yes | Yes |
Assets
Load all asset images 🔞| clienticon | c364968cb6d9d4fa202c580faf4c37c1058697c9 | ||||||||||||||||||||||||||||||
| clienttga | 4b20c5f106a5a2cc10893e5262db65eefa11f378 | ||||||||||||||||||||||||||||||
| icon | 797434ccf216acf97f71d06503c9d9b662829fe5 | ||||||||||||||||||||||||||||||
| logo | 3e3e319f95536389c8938491561a32a111c5f745 | ||||||||||||||||||||||||||||||
| logo_small | 3e3e319f95536389c8938491561a32a111c5f745_thumb | ||||||||||||||||||||||||||||||
| LinuxClientIcon | 72c656dfbb9dda6016d4eccb877a51287fcdbcdb | ||||||||||||||||||||||||||||||
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