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Summary

Sogna combined the best of both worlds in VIPER-M1: a modern, Windows-based interface and a set of three smaller games, reminiscent of the earlier V series titles. Super-heroine story My Mothers features cover girl Mika in her attempt to rescue a prospective boyfriend. Coming of age tale Green Boy follows Natane and her two older sisters as they welcome a strange young man into their home. The May Works focuses on a schoolgirl, Maki, as she flees from an alien invasion of her hometown. [From Sogna Digital Museum]

Eimmy to Yobanaide
Eimmy to Yobanaide
NAN%
Tags
  • Protagonist's Half-brother as a Hero
  • Debt
  • Protagonist with Big Breasts
  • Airhead Protagonist
  • Disappearance
Rating 5.42185 Users
Tsubasa Heaven
Tsubasa Heaven
NAN%
Tags
  • Student-Teacher Romance
  • Psychological Horror
  • Heroine with Psychological Problems
  • Yandere Heroine
  • Thriller
Rating 6.1925 Users
Oku-san, Kane ga Nai nara Karada de Haratte Moraimashou ka? ~Hito no Tsuma-tachi no Ketsu o Narabete Tabekurabe! Netori Kissa Settai!~
Oku-san, Kane ga Nai nara Karada de Haratte Moraimashou ka? ~Hito no Tsuma-tachi no Ketsu o Narabete Tabekurabe! Netori Kissa Settai!~
NAN%
Tags
  • Sex Involving Prostitution
  • Model Heroine
  • Waitress Heroine
  • Cafe
  • Heroine with Pubic Hair
Rating 5.4128 Users
Doushin ~Sanshimai no Etude~
Doushin ~Sanshimai no Etude~
NAN%
Tags
  • Office Lady Protagonist
  • Unavoidable Heroine Rape
  • Multiple Protagonists
  • Heroine with Shorts
  • Protagonist with Voice Acting
Rating 5.63174 Users
Otoko no Ko Gakuen! ~3nin no Otoko no Ko-tachi to no Unmei no Deai, Soshite Boku-tachi wa Koi ni Ochiru!~
Otoko no Ko Gakuen! ~3nin no Otoko no Ko-tachi to no Unmei no Deai, Soshite Boku-tachi wa Koi ni Ochiru!~
NAN%
Tags
  • Only Trap Heroines
  • Trap on Male
  • Trap Heroine
  • Student Hero
  • Male on Male Sex
Rating 6.2521 Users
Boku Kano 3 ~ Otoko no Ko o Suki ni Naru Jun
Boku Kano 3 ~ Otoko no Ko o Suki ni Naru Jun'ai Triangle + 1
NAN%
Tags
  • Only Uke Heroes
  • Shotacon Protagonist
  • Male on Trap
  • Seme Protagonist
  • Brother/Brother Incest
Rating 6.3024 Users
Aniyome Ijiri
Aniyome Ijiri
NAN%
Tags
  • Protagonist's Sister-in-Law as a Heroine
  • In-law Incest
  • Only Adult Heroines
  • Married Heroine
  • Single Ending
Rating 5.5837 Users
Nuki Nuki Destiny!
Nuki Nuki Destiny!
NAN%
Tags
  • Softcore
  • Spelling Errors
  • Sexual Innuendo
  • Surreal
  • Heroine with Armpit Hair
Rating 5.1022 Users
Réserve 1/2
Réserve 1/2
NAN%
Tags
  • Action Game
  • Demon Protagonist
  • Lesbian Sex
  • Female Protagonist
  • Girl x Girl Romance Only
Rating 4.8323 Users
Usugi Shoujo
Usugi Shoujo
NAN%
Tags
  • Elementary School
  • Sex Involving Children
  • Clothing ON/OFF
  • Elementary School Student Protagonist
  • Elementary School Student Heroine
Rating 6.0431 Users
GLO-RI-A ~Kindan no Ketsuzoku~
GLO-RI-A ~Kindan no Ketsuzoku~
NAN%
Tags
  • Short Sexual Scenes
  • Spontaneous Sex Scenes
  • University Student Protagonist
  • Teacher Protagonist
  • Businesswoman Heroine
Rating 6.15154 Users
VIPER-RSR
VIPER-RSR
NAN%
Tags
  • Dungeon Crawling Game
  • Monsters
  • High Amounts of Rape
  • ADV
Rating 6.9736 Users
Viper-CTR ~Asuka~
Viper-CTR ~Asuka~
NAN%
Tags
  • Kendo Club
  • Flat Tints Only
  • Protagonist's Cousin as a Heroine
  • Fingering
  • High School Student Protagonist
Rating 6.9332 Users
Viper-GTS
Viper-GTS
NAN%
Tags
  • Succubus Heroine
  • Metal Bondage
  • Rape Victim Heroine
  • Demon Heroine
  • Kidnapping
Rating 6.7033 Users
Hitozuma Dorei Kissa 2
Hitozuma Dorei Kissa 2
NAN%
Tags
  • Rape with Blackmail
  • Blackmail
  • Waitress Heroine
  • Lactation During Sex
  • Group Sex of Multiple Females and Males
Rating 5.7922 Users
Roshutsu de Asobou
Roshutsu de Asobou
NAN%
Tags
  • Elementary School Student Heroine
  • Sexual Fantasizing
  • Unlock All Scenes Option
  • Elementary School Student Protagonist
  • Exhibitionism
Rating 5.6131 Users
Adam: The Double Factor
Adam: The Double Factor
NAN%
Tags
  • Metropolitan Area
  • Ponytail Protagonist
  • Animated Ending
  • Police Officer Protagonist
  • Unlockable Gallery
Rating 6.57110 Users
Angel Bitch! ~Inran Dosukebe Chiloli to Boku no Sex Zanmai Seikatsu~
Angel Bitch! ~Inran Dosukebe Chiloli to Boku no Sex Zanmai Seikatsu~
NAN%
Tags
  • Title Parody
  • Nympho Heroine
  • Straight Lolicon
  • Heroine with Zettai Ryouiki
  • Single Buttjob
Rating 6.1833 Users
Kimi to Boku to Kakushigoto
Kimi to Boku to Kakushigoto
NAN%
Tags
  • Smoker Protagonist
  • Depression
  • Otaku Protagonist
  • Male Friend
  • Few Choices
Rating 6.2328 Users
Nanpa Nama Hame Nakadashi Banzai 4
Nanpa Nama Hame Nakadashi Banzai 4
NAN%
Tags
  • Nanpa
  • Playboy Protagonist
  • Metropolitan Area
  • Modern Day Shibuya
  • Narrating Others' Thoughts
Rating 6.2169 Users
Denshanai de Now.
Denshanai de Now.
NAN%
Tags
  • Chikan
  • Molestation on Public Transport
  • Public Masturbation
  • Discreet Sex
  • Chikan Protagonist
Rating 7.1534 Users
Tottemo Pheromone
Tottemo Pheromone
NAN%
Tags
  • Energy Transfer via Sex
  • Support Character with Ahoge
  • Cousin Support Character
  • Host Club Heroine
  • Waiting Staff Protagonist
Rating 5.96262 Users
Siscon -Saiminjutsushi Onii-chan to Namaiki na Imouto-
Siscon -Saiminjutsushi Onii-chan to Namaiki na Imouto-
NAN%
Tags
  • Brother/Sister Incest
  • Chuunibyou Protagonist
  • Only Blood-related Heroines
  • Siscon Protagonist
  • Only Protagonist's Sisters as Heroine(s)
Rating 6.3022 Users
Oinari-sama to Dadaama Kozukurikon ~Nuicha Dame! Takusan Dashite Oneesan no Shikyuu Ippai ni Shite Kudasai ne♪~
Oinari-sama to Dadaama Kozukurikon ~Nuicha Dame! Takusan Dashite Oneesan no Shikyuu Ippai ni Shite Kudasai ne♪~
NAN%
Tags
  • Kitsune Heroine
  • Goddess Heroine
  • Pregnancy Good Ending
  • Single Ending
  • Under the Same Roof
Rating 6.0953 Users
Viper-V16
Viper-V16
39%
Tags
  • Martial Artist Protagonist
  • Anthology
  • Waitress Heroine
  • Underworld
  • Mind Control
Rating 5.8395 Users
Viper-V6
Viper-V6
27%
Tags
  • Flat Tints Only
  • Succubus Heroine
  • Anthology
  • Boobjob
  • Anal Penetration
Rating 6.1625 Users
Viper-GTS
Viper-GTS
24%
Tags
  • Succubus Heroine
  • Metal Bondage
  • Rape Victim Heroine
  • Demon Heroine
  • Kidnapping
Rating 6.7033 Users
Viper-CTR ~Asuka~
Viper-CTR ~Asuka~
23%
Tags
  • Kendo Club
  • Flat Tints Only
  • Protagonist's Cousin as a Heroine
  • Fingering
  • High School Student Protagonist
Rating 6.9332 Users
VIPER-RSR
VIPER-RSR
20%
Tags
  • Dungeon Crawling Game
  • Monsters
  • High Amounts of Rape
  • ADV
Rating 6.9736 Users
Usugi Shoujo
Usugi Shoujo
17%
Tags
  • Elementary School
  • Sex Involving Children
  • Clothing ON/OFF
  • Elementary School Student Protagonist
  • Elementary School Student Heroine
Rating 6.0431 Users
GLO-RI-A ~Kindan no Ketsuzoku~
GLO-RI-A ~Kindan no Ketsuzoku~
16%
Tags
  • Short Sexual Scenes
  • Spontaneous Sex Scenes
  • University Student Protagonist
  • Teacher Protagonist
  • Businesswoman Heroine
Rating 6.15154 Users
Nuki Nuki Destiny!
Nuki Nuki Destiny!
16%
Tags
  • Softcore
  • Spelling Errors
  • Sexual Innuendo
  • Surreal
  • Heroine with Armpit Hair
Rating 5.1022 Users
Réserve 1/2
Réserve 1/2
12%
Tags
  • Action Game
  • Demon Protagonist
  • Lesbian Sex
  • Female Protagonist
  • Girl x Girl Romance Only
Rating 4.8323 Users
Roshutsu de Asobou
Roshutsu de Asobou
12%
Tags
  • Elementary School Student Heroine
  • Sexual Fantasizing
  • Unlock All Scenes Option
  • Elementary School Student Protagonist
  • Exhibitionism
Rating 5.6131 Users
Angel Bitch! ~Inran Dosukebe Chiloli to Boku no Sex Zanmai Seikatsu~
Angel Bitch! ~Inran Dosukebe Chiloli to Boku no Sex Zanmai Seikatsu~
12%
Tags
  • Title Parody
  • Nympho Heroine
  • Straight Lolicon
  • Heroine with Zettai Ryouiki
  • Single Buttjob
Rating 6.1833 Users
Nanpa Nama Hame Nakadashi Banzai 4
Nanpa Nama Hame Nakadashi Banzai 4
11%
Tags
  • Nanpa
  • Playboy Protagonist
  • Metropolitan Area
  • Modern Day Shibuya
  • Narrating Others' Thoughts
Rating 6.2169 Users
Tottemo Pheromone
Tottemo Pheromone
11%
Tags
  • Energy Transfer via Sex
  • Support Character with Ahoge
  • Cousin Support Character
  • Host Club Heroine
  • Waiting Staff Protagonist
Rating 5.96262 Users
Oinari-sama to Dadaama Kozukurikon ~Nuicha Dame! Takusan Dashite Oneesan no Shikyuu Ippai ni Shite Kudasai ne♪~
Oinari-sama to Dadaama Kozukurikon ~Nuicha Dame! Takusan Dashite Oneesan no Shikyuu Ippai ni Shite Kudasai ne♪~
10%
Tags
  • Kitsune Heroine
  • Goddess Heroine
  • Pregnancy Good Ending
  • Single Ending
  • Under the Same Roof
Rating 6.0953 Users
Uruwashi no Seimegami Cecil o Sukuu Nakadashi Shinkon Seikatsu! ~Amaete Ii kara... Anata no Kodane o Takusan Shikyuu ni Sosoide?~
Uruwashi no Seimegami Cecil o Sukuu Nakadashi Shinkon Seikatsu! ~Amaete Ii kara... Anata no Kodane o Takusan Shikyuu ni Sosoide?~
10%
Tags
  • Goddess Heroine
  • Heroine with Sport Bloomers
  • Cosplay
  • Linear Plot
  • Single Ending
Rating 6.3434 Users
Gijinka Pet no Kozukuri Ongaeshi ~Kenage de Amaeta na Usamusume ni Shinu hodo Aisareru!~
Gijinka Pet no Kozukuri Ongaeshi ~Kenage de Amaeta na Usamusume ni Shinu hodo Aisareru!~
10%
Tags
  • Rabbitgirl Heroine
  • Albino Heroine
  • Reincarnation
  • White Haired Heroine
  • Pregnancy
Rating 6.4623 Users
Ririshiki Bushin Reiha to Amalove Nakadashi Seikatsu! ~Watashi to Ko o Nashitekure... Ongi ni wa Kono Karada de Seishin Seii Kotaeyou~
Ririshiki Bushin Reiha to Amalove Nakadashi Seikatsu! ~Watashi to Ko o Nashitekure... Ongi ni wa Kono Karada de Seishin Seii Kotaeyou~
10%
Tags
  • Sudden Girlfriend Appearance
  • Deities
  • Sex Under the Necessity
  • Curse
  • Goddess Heroine
Rating 6.2843 Users
HEARTWORK -Symphony of Destruction-
HEARTWORK -Symphony of Destruction-
10%
Tags
  • Pistol Combat
  • Ending List
  • Violence
  • Female Friend
  • High Amount of Bad Endings
Rating 5.98281 Users
Réserve
Réserve
10%
Tags
  • Action Game
  • Tentacle Rape
  • Protagonist's Boyfriend as a Hero
  • Lesbian Sex
  • Female Protagonist
Rating 4.8928 Users
Erogaki ni Hamaru Kanojo
Erogaki ni Hamaru Kanojo
10%
Tags
  • Defloration by Others
  • Only Bad Endings
  • Straight Shotacon
  • Netorare Type A
  • Shotacon
Rating 6.1837 Users
Kyonyuu Maid Nakadashi Tengoku!
Kyonyuu Maid Nakadashi Tengoku!
10%
Tags
  • Apartment Building
  • Chosen Choices Marking
  • Long Sexual Scenes
  • Choices with 4 or More Options
  • Read Text Marking
Rating 5.6377 Users
Kyouhaku Netorare Seiso Tsuma ~Haramase Shussan made Shikyuu ni Sosogare Tsuzuketa Hitozuma~
Kyouhaku Netorare Seiso Tsuma ~Haramase Shussan made Shikyuu ni Sosogare Tsuzuketa Hitozuma~
10%
Tags
  • Netori
  • Single Ending
  • Adult Heroine
  • Married Heroine
  • Internal Exhibition of Sex
Rating 4.9639 Users
The Mensetsu ~Naitei Hoshikerya Wakaru Daro?~
The Mensetsu ~Naitei Hoshikerya Wakaru Daro?~
9%
Tags
  • Casting Couch
  • Rape by Deception
  • Manager Protagonist
  • Office
  • Ending Scene Recollection
Rating 5.4071 Users
Miai Kekkon Shita Osanazuma ga Otoko no Ko Datta Ken
Miai Kekkon Shita Osanazuma ga Otoko no Ko Datta Ken
9%
Tags
  • Only Trap Heroines
  • Male Pregnancy
  • Hero with Beauty Mark
  • Arranged Marriage
  • Protagonist's Wife as a Heroine
Rating 5.8023 Users

Viper-M1 has not appeared in our Steam sample enough to calculate it's similar novels... sorry!
A novel needs atleast 20 owners before it's similarity is calculated.

Tags (26 total)

NameScoreImportanceWeight
Comedy Rape2.752.506.88
High Amount of Special Effects2.752.216.07
Anthology3.001.975.90
Slime Monster Rape2.502.095.23
Interactive Movie2.002.605.20
Superheroine2.002.575.14
Flat Tints Only3.001.614.84
Extraterrestrial2.002.274.54
Monsters2.251.924.31
Short Sexual Scenes2.001.823.65
Mecha Combat1.332.483.29
Mecha1.252.443.05
Plants & Flowers1.252.403.01
Game Over2.001.472.95
Comedy2.501.102.76
High Sexual Content2.501.052.63
Villainous Heroine1.252.072.58
Heroine with Eyepatch1.002.362.36
Female Protagonist3.000.712.13
Student Protagonist1.501.261.89
Sexual Content2.670.631.68
Heroine with Glasses1.501.111.66
BDSM1.001.651.65
Map Movement1.251.311.63
Group Sex of One Male and Several Females1.670.921.53
ADV2.000.140.29

Traits (68 total)

NameCharactersImportanceWeight
Power Armor Clothes23.213.53
Extraterrestrial Role22.432.67
Villain Role31.902.63
Chain Weapon Items13.412.36
Slime Role13.142.17
Slave Owner Role13.082.14
Rape Engages in (Sexual)21.811.99
Sexual Slavery (Non-consensual) Subject of (Sexual)12.761.91
Facial Piercing Body12.721.89
Cowgirl Engages in (Sexual)21.711.88
Turtleneck Tank Top Clothes12.701.87
Grandfather Role12.621.82
Avoidable Rape (obsolete) Subject of (Sexual)12.501.73
Sleeveless Sweater Clothes12.481.72
Older Sister Role21.561.71
Balding Hair12.431.69
Sleeveless Dress Clothes12.401.66
Granddaughter Role12.391.66
Green Hair21.481.62
Blouse Clothes21.461.61
Scientist Role12.281.58
Eyepatch Clothes12.251.56
Odango Hair12.151.49
Ahoge Hair21.321.45
Shopkeeper Role12.091.45
Cyan Hair12.031.41
Beret Clothes11.991.38
Overweight Body11.991.38
Ribbon Tie Clothes21.251.38
Tanned Body11.901.32
Blue Hair21.191.31
Twin Braids Hair11.871.29
Blue Eyes40.801.29
Hidden Eyes11.801.25
Hair Ribbon Clothes11.801.25
Lab Coat Clothes11.801.24
Deredere Personality11.741.21
Missionary Engages in (Sexual)11.741.21
Teal Eyes11.721.20
Glasses Clothes21.081.19
Doggy Style Engages in (Sexual)11.681.17
Intake Hair11.681.16
Nail Polish Body11.621.13
Spiky Bangs Hair21.001.10
Rape Subject of (Sexual)11.571.09
Orange Hair11.511.05
Necklace Clothes11.501.04
Younger Sister Role11.441.00
Teen Body40.621.00
Earrings Clothes11.420.98
Jacket Clothes11.420.98
Masturbation Engages in (Sexual)11.390.97
Tsurime Eyes11.380.96
Grey Hair11.380.96
High School Student Role20.850.94
Pink Hair11.330.92
Fighting Engages in11.290.89
Dress Clothes11.250.87
Long Hair20.750.82
Shirt Clothes11.160.80
Necktie Clothes11.120.77
Miniskirt Clothes11.060.74
Green Eyes11.020.70
Sidehair Hair10.980.68
Short Hair20.610.67
Doggy Style Subject of (Sexual)10.920.64
Young-adult Body10.760.53
School Uniform Clothes10.750.52