---
title: "Viper-M1"
description: "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 titl"
image: "https://t.vndb.org/cv/97/92797.jpg"
---

# Viper-M1

![Viper-M1](https://t.vndb.org/cv/97/92797.jpg)

**Developer:** Sogna

**Release date:** Jun 27, 1998

**Platform:** Windows

**Language:** English, Italian, Japanese, Portuguese (Brazil)

**Rating:** 5.6/10 (92 votes)

## Description
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](http://sognadigitalmuseum.com/products/games/m1.html)]

## Characters
### Maki
- **Gender:** Female
- **Hair:** Long, Cyan, Sidehair
- **Body:** Teen
- **Clothes:** School Uniform, Glasses, Ribbon Tie, Sleeveless Sweater
- **Eyes:** Blue
- **Role:** High School Student

### Mika
- **Gender:** Female
- **Hair:** Pink, Ahoge, Intake
- **Body:** Teen
- **Engages in:** Fighting
- **Clothes:** Jacket, Miniskirt, Power Armor, Beret, Blouse, Ribbon Tie
- **Personality:** Deredere
- **Role:** Granddaughter
- **Eyes:** Teal

### Natane
- **Gender:** Female
- **Hair:** Ahoge, Spiky Bangs, Orange, Twin Braids
- **Body:** Teen
- **Eyes:** Blue
- **Clothes:** Dress
- **Role:** High School Student, Younger Sister

### Kazumi
- **Gender:** Female
- **Hair:** Long, Green
- **Eyes:** Green
- **Body:** Young-adult
- **Clothes:** Hair Ribbon, Blouse
- **Role:** Shopkeeper, Older Sister

### Namiki
- **Gender:** Female
- **Hair:** Blue, Odango, Short
- **Eyes:** Blue
- **Role:** Older Sister
- **Clothes:** Sleeveless Dress

### Ojii-chan
- **Gender:** Male
- **Eyes:** Hidden
- **Body:** Overweight, Tanned
- **Clothes:** Glasses, Necktie, Shirt, Power Armor, Lab Coat
- **Role:** Grandfather, Scientist
- **Hair:** Grey, Balding

### Green Boy
- **Gender:** Male
- **Hair:** Green
- **Role:** Non-human, Plant

### Kabuto
- **Gender:** Male
- **Role:** Villain, Extraterrestrial

### Onii-chan
- **Gender:** Male
- **Hair:** Blue, Short, Spiky Bangs
- **Body:** Teen
- **Eyes:** Blue

### Rei
- **Gender:** Female
- **Role:** Villain, Slave Owner
- **Clothes:** Earrings, Necklace, Eyepatch, Turtleneck Tank Top
- **Items:** Chain Weapon
- **Body:** Nail Polish, Facial Piercing
- **Eyes:** Tsurime

### Slamy
- **Gender:** Male
- **Role:** Villain, Extraterrestrial, Slime

## Shops
- [Official Website](http://web.archive.org/web/20021029121737/www.hobibox.com/games/m1/indexe.htm)
- [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ001721.html)

## Releases
### Japanese
- **1998-06-27**: Viper-M1 - [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=556)
- **1999**: Viper-M1 (International Version) - [Official website](http://web.archive.org/web/20021029121737/www.hobibox.com/games/m1/indexe.htm)
- **2002-12-20**: Viper Classic Collection Box Vol. 2
- **2002-12-20**: Viper Classic Collection: Viper M1
- **2006-04-18**: Viper-M1 - Download Edition - [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ001721.html), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0005848/), [DMM](https://dlsoft.dmm.co.jp/detail/sogna_0019/)

### English
- **1999**: Viper-M1 (International Version) - [Official website](http://web.archive.org/web/20021029121737/www.hobibox.com/games/m1/indexe.htm)

### Italian
- **1999**: Viper-M1 (International Version) - [Official website](http://web.archive.org/web/20021029121737/www.hobibox.com/games/m1/indexe.htm)

### Portuguese (Brazil)
- **2012-09-29**: Viper-M1 - [Official website](http://www.romhackers.org/modules/PDdownloads/singlefile.php?cid=16&lid=1030)

## Tags
Mecha Combat, Sexual Content, ADV, Comedy, Female Protagonist, Heroine with Glasses, Map Movement, High Sexual Content, Extraterrestrial, Group Sex of One Male and Several Females, Mecha, Heroine with Eyepatch, Student Protagonist, Comedy Rape, Superheroine, Plants & Flowers, Anthology, Game Over, Short Sexual Scenes, Slime Monster Rape, Monsters, High Amount of Special Effects, Villainous Heroine, BDSM, Interactive Movie, Flat Tints Only

## More Games from Sogna
- [Animahjong V3](https://pinovel.net/v10213)
- [Viper-V6](https://pinovel.net/v8326)
- [Viper-V8](https://pinovel.net/v8327)
- [Viper-V10](https://pinovel.net/v8325)
- [Animahjong  X](https://pinovel.net/v10215)
- [Viper-GTS](https://pinovel.net/v4567)
- [Viper-V12](https://pinovel.net/v7493)
- [Viper-V16](https://pinovel.net/v3415)
- [Viper-BTR ~Mahou no Tobakushi Totokaru☆Chomi~](https://pinovel.net/v10122)
- [Viper-CTR ~Asuka~](https://pinovel.net/v978)
- [Viper-F40](https://pinovel.net/v977)
- [Guynarock R](https://pinovel.net/v14947)
- [Viper-M1](https://pinovel.net/v3420)
- [Viper-F50 ~Mirai Tokusou Bureiban~](https://pinovel.net/v7490)
- [Viper-GTB ~Rise After~](https://pinovel.net/v10121)
- [Viper-GT1 ~Akira-kun to Issho~](https://pinovel.net/v7491)
- [Typing Viper](https://pinovel.net/v7407)
- [Viper-M5](https://pinovel.net/v7492)
- [VIPER-RSR](https://pinovel.net/v970)
- [Viper-M3-3.2](https://pinovel.net/v10120)

---
*View the full details at [pinovel.net/v3420](https://pinovel.net/v3420).*

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