Games like Insincere
Games like Insincere include Black Mesa, Half-Life 2, Bright Memory: Infinite, BioShock Infinite, and Apex Legends™. We matched them by the tags players give Insincere on Steam (Indie, Action, FPS, Shooter, and Sci-fi): closest matches first, and among equally close ones the better-known games.

Black Mesa
Shared: FPS · Action · Sci-fi

Half-Life 2
Shared: Action · FPS · Sci-fi

Bright Memory: Infinite
Shared: Action · Indie · FPS

BioShock Infinite
Shared: Action · Shooter · FPS

Apex Legends™
Shared: FPS · Shooter · Action

KovaaK's
Shared: Action · Shooter · Indie

DOOM
Shared: FPS · Action · Shooter

Titanfall® 2
Shared: FPS · Shooter · Action

Aimlabs
Shared: FPS · Shooter · Action

SUPERHOT
Shared: Action · FPS · Indie

Bright Memory
Shared: FPS · Shooter · Action

Halo Infinite
Shared: FPS · Action · Shooter

Call of Duty®: Black Ops III
Shared: FPS · Action · Shooter

Starship Troopers: Extermination
Shared: Action · FPS · Sci-fi

Call of Duty®
Shared: FPS · Shooter · Action

Half-Life
Shared: FPS · Sci-fi · Action

DOOM Eternal
Shared: Action · FPS · Shooter

Half-Life: Opposing Force
Shared: Action · FPS · Sci-fi

Counter-Strike: Source
Shared: Action · FPS · Shooter

PUBG: BATTLEGROUNDS
Shared: Shooter · FPS · Action

Counter-Strike
Shared: Action · FPS · Shooter

Half-Life: Blue Shift
Shared: Action · FPS · Sci-fi

RoboCop: Rogue City
Shared: Action · FPS · First-Person

STAR WARS™ Battlefront II (Classic, 2005)
Shared: Action · Shooter · Sci-fi