Vampire Rain (ヴァンパイアレイン, Vanpaia Rein) is a survival horror stealth video game developed by Artoon.

The game was later ported to the PlayStation 3 in 2008 under the title Vampire Rain: Altered Species (ヴァンパイアレイン：アルタードスピーシーズ, Vanpaia Rein: Arutādo Supīshīzu).

The American Information Bureau (AIB) raises a black ops special forces unit, led by John Lloyd, which is deployed to the streets of Los Angeles.

The second doesn't resist and offers Lloyd the choice to kill him or not, claiming that the future of the nightwalker race will soon be revealed.

Vampire Rain is a stealth game similar in nature to the Splinter Cell or Metal Gear series.

Unlike most stealth-action games, Vampire Rain places heavy emphasis on pure stealth.

Additionally, for the first third of the game, players lack any weaponry that can kill vampires effectively without spending a large amount of ammunition.

Also, there are a few pre-scripted action sequences that involve fighting against multiple enemies, generally with the assistance of teammates or special environmental hazards.