Fear Effect is a 2000 action-adventure video game developed by Kronos Digital Entertainment and published by Eidos Interactive for the PlayStation.

Fear Effect features gameplay with unshaded characters textured to resemble cel-shading, notably being one of the first games to attempt the technique.

Set around the year 2050, when Wee Ming Lam, the daughter of a powerful Hong Kong Triad boss, disappears, a trio of mercenaries search for her in the city.

Wee Ming has vanished into the fictional Shan Xi protectorate; Hana Tsu-Vachel, the lead character and femme fatale of the group, used to work in a brothel somewhere in that region.

What begins as a simple snatch and grab turns into a fiasco: The father of the runaway, Mr. Lam, attributes his fortune and power to a pact he made with demons long ago.

Wee Ming, who is a paper doll given life, has been scheduled to serve as a sacrifice to Yim Lau Wong, the mythical "King of Hell".

Hana's contact inside Mr. Lam's organization, Jin, is discovered, tortured, and left to die with a bomb strapped to his chest.

After being splashed with Deke's blood, Wee Ming's powers activate, transforming the working girls and Madam Chen's thugs into demons.

Determined to save Wee Ming from whatever fate Mr. Lam has in store for her, Hana follows them into the portal, with Glas reawakening, and frees himself to give chase.

In a surreal journey through Hell, Hana meets the Black and White Guards of Impermanence who give her cryptic messages about her fate.

[12] Edge praised the game's tight script and distinctive graphics, but criticized its unbalanced gameplay and clumsy control system, stating that they "make the boss encounters absurdly difficult".

"[7] However, Blake Fischer of NextGen called it "One of the most exciting and innovative adventures to show up on PlayStation, dragged down only slightly by a few sticky gameplay issues.

"[20][b] In another GamePro review, Uncle Dust called it "an amazing game, full of action, puzzles and characters you actually give a damn about.

In 2016, Fear Effect Sedna was announced after French studio Sushee pitched the idea to Square Enix;[25] it was eventually released in 2018.

Reinvented was being developed by MegaPixel Studio S.A. and to be published by Square Enix for Microsoft Windows, Nintendo Switch, PlayStation 4 and Xbox One.