Also known as: VIPER(PCゲーム)
An eroge and bishoujo game series by Sogna.
Titles
- Viper V6
- Viper V8
- Viper V10
- Viper GTS
- Viper V12
- Viper V16
- Viper BTR
- Viper CTR
- Viper F40
- Viper M1
- Viper Island Vol.1-6
- Viper F50
- Viper GTB
- Viper Paradice/Viper Langerie Black, Viper Purple and Viper Red
- Viper GT1
- Typing ViperViper Typing
- Viper M5
- Viper RSR
- Viper M3
- Viper V6R
- Viper V8R
Viper GTS was made into a three part hentai anime series in 2002 by Studio G-1 Neo.
Other titles from Sogna
- Galactic Guardian Guynarock R
- Animahjong