History Main / SentryGun

->''"Like this heavy-caliber tripod-mounted little old number designed by me. Built by me. And you best hope -- not pointed at you."''

In video games, they're typically [[WeakTurretGun weak or fragile]] to emphasize the need of human intervention in area security, but they do make [[StormTheCastle base raiding]] all the more difficult for the attacking team. As such, they aren't usually capable of holding a ZergRush off by their lonesome, let alone a single powerful entity. It may have [[BottomlessMagazines infinite ammo]] in order to give it some persistence in battle. Sentry guns that fire other ammo, such as [[EnergyWeapon lasers]], [[{{Energy Ball}} energy balls]], [[MacrossMissileMassacre missiles]], or [[AbnormalAmmo weird things like fruit]] and so on also exist, especially in {{Shoot Em Up}}s. TheTurretMaster specializes in deploying these. Occasionally, they're [[RemovableTurretGun removable]].

* ''VideoGame/{{Overwatch}}'': Torbjörn can build a sentry turret to reinforce his team's defenses. He can upgrade his turret to level 2 by [[PercussiveMaintenance whacking it a few times]], making it fire much faster. Symmetra can also create miniature turrets out of HardLight that fire lasers.

* ''WesternAnimation/TheIncredibles''. Edna Mode is taking Elastigirl to her secret design chamber.

* ''VideoGame/AceCombat7SkiesUnknown'' features these. While AA guns and SAM sites on the ground are presumably manned, ships are equipped with CWIS guns that can shoot down missiles, as are Aegis Ashore sites at Anchorhead Bay. Earlier in the series, allied radio chatter in AceCombat5 mentions the real-life Phalanx model. [[spoiler:It malfunctions and fires on nearby docks.]]

* VideoGame/AceCombat7 features these. While AA guns and SAM sites on the ground are presumably manned, ships are equipped with CWIS guns that can shoot down missiles, as are Aegis Ashore sites at Anchorhead Bay. Earlier in the series, allied radio chatter in AceCombat5 mentions the real life Phalanx model. [[spoiler: It malfunctions and fires on nearby docks.]]

->''"Like this heavy-caliber tripod-mounted little old number designed by me. Built by me. And you best hope - not pointed at you."''

* ''VideoGame/CommandAndConquer'': Games from ''[[VideoGame/CommandAndConquerTiberianSun Tiberian Sun]]'' and beyond feature sentry guns. A rule of thumb is that sentry guns do not release soldiers[[note]]some defense structures have a crew[[/note]] when the gun is sold or destroyed. To further qualify the building as a sentry gun, it must be a small, low-tier defense structure with a turret. The Soviet Union (''VideoGame/RedAlert2'' era) actually has a low-tier defense structure named the Sentry Gun [[ExactlyWhatItSaysOnTheTin (appropriately enough)]].

** In ''Film/LiveAndLetDie'', Dr. Kananga has ScaryScarecrows guarding his hidden opium field to frighten away the voodoo-believing locals, but the heads are shown to contain surveillance cameras and a lethal dart gun.

* ''Series/{{Arrow}}'': Cooper has several motion-sensor guided machine guns set up in his lair, but Oliver can move faster than they can track him, and he's able to destroy each in turn.

* ''VideoGame/TeamFortress2'' has them as the primary kill-earner of the Engineer. It starts out as a single gun, upgrades to [[MoreDakka double]] [[GatlingGood chainguns]], and then a further upgrade gives it ''rockets''. Each upgrade also increases the gun's health. Subverted with the Wrangler, which allows you to aim manually, with a bonus of increased fire rate and a damage reducing shield (though even that has aim assist). In standard ''Team Fortress 2'' logic, [[PercussiveMaintenance hit it with your wrench]] and your metal will repair and rearm it. It can also be replaced with the Mini-sentry by using the [[ArtificialLimbs Gunslinger]] instead of the wrench, which is weaker and can't be upgraded, but cheaper and faster building, making it a good choice for offense. They are one of the most powerful weapons in the game when it comes to pure damage output, but suffer from certain weaknesses to balance it out. Obviously, they can't move (unless you pick them up, but they can't fire while packed), making them easy targets once a player is aware of them. They can't see through a spy's disguises, allowing him to easily sap and destroy unguarded sentry guns. And they have [[ArbitraryMaximumRange a limited range]], so enemies can attack with impunity if they can stay out of range (averting this is a main advantage of the Wrangler).

* The Engineer Monkey in ''VideoGame/BloonsTowerDefense'' series can deploy turrets within its attack radius, which can fire at bloons autonomously. Later upgrades lets the Engineer summon turrets that shoot different types of ammo, and the final tier upgrade makes them shoot rapid-fire plasma balls that self-destruct to deal even more damage when it wears off. The [[AllYourPowersCombined Paragon]] upgrade lets them summon turrets that summon turrets.

[[folder:Web Comics]]

* ''Wiki/SCPFoundation'', [[http://www.scp-wiki.net/scp-1888 SCP-1888 ("Terraforming Temple").]] Facility 1888 (which contains SCP-1888) is surrounded by a barbed wire electric fence with automated sentry guns every twelve meters.