Shoot 'em up

Part of a series on
Action games
Subgenres Action-adventure Metroidvania Battle royale Fighting Beat 'em up Hack and slash Platform fighter Platform Rhythm Action RPG Shooter Artillery Arena First-person Hero Light gun Third-person Tactical Shoot 'em up Bullet hell Twin-stick Sports Racing Stealth Survival Vehicle sim
Topics Capture the flag Cover system First-person shooter engine Free look Quick time event WASD keys
Lists List of battle royale games List of beat 'em ups List of fighting game companies List of fighting games List of first-person shooters List of freeware first-person shooters List of third-person shooters List of survival games List of light gun games List of maze video games List of platform games
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Shoot 'em ups (also known as shmups or STGs)^[1][2] are a sub-genre of action games. There is no consensus as to which design elements compose a shoot 'em up; some restrict the definition to games featuring spacecraft and certain types of character movement, while others allow a broader definition including characters on foot and a variety of perspectives.

The genre's roots can be traced back to earlier shooting games, including target shooting electro-mechanical games of the mid-20th-century, but did not receive a video game release until Spacewar! (1962). The shoot 'em up genre was established by the hit arcade game Space Invaders, which popularised and set the general template for the genre in 1978, and has spawned many clones. The genre was then further developed by arcade hits such as Asteroids and Galaxian in 1979. Shoot 'em ups were popular throughout the 1980s to early 1990s, diversifying into a variety of subgenres such as scrolling shooters, run and gun games and rail shooters. In the mid-1990s, shoot 'em ups became a niche genre based on design conventions established in the 1980s, and increasingly catered to specialist enthusiasts, particularly in Japan. "Bullet hell" games are a subgenre of shooters that features overwhelming numbers of enemy projectiles, often in visually impressive formations.