Sentry bot

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This is an overview article which contains background information and cross-game comparisons. For game-specific information and stats, see the articles linked on the right.
Gameplay articles
Fallout 2Sentry bot
Fallout 3Sentry bot
Enclave sentry bot
U.S. Army sentry bot
Strike Team sentry bot Operation: Anchorage (add-on)Gametitle-FO3 OA
Presidential metro sentinal unitBroken SteelGametitle-FO3 BS
Fallout: New VegasSentry bot
Hardened sentry bot
Prototype sentry bot
Sentry bot mark series Old World Blues (add-on)Gametitle-FNV OWB
RY-589 Ultimo bot Old World Blues (add-on)Gametitle-FNV OWB
cutIcon cut NCR sentry bot
Gametitle-FO2Gametitle-FO3Gametitle-FO3 OAGametitle-FO3 BSGametitle-FNVGametitle-FNV OWB
Gametitle-FO2Gametitle-FO3Gametitle-FO3 OAGametitle-FO3 BSGametitle-FNVGametitle-FNV OWB

Sentry bot is a robot that appears in Fallout 2, Fallout 3 and Fallout: New Vegas.


Sentry bots (military serial numbers SB-XXXX) are security robots made before the Great War with the express purpose of participating in the heaviest of firefights during war. Where the Mister Gutsy is a hovering platform with modest armor plating, and the protectron was originally designed for protecting business premises, the sentry bot is a powerhouse, equipped with sturdy armor plating, powerful weapons integrated into its chassis and high mobility thanks to wheels mounted on its three legs.


Sentry botEdit


Fallout 2 variant

Sentry bots are one of the highest level robot characters, and are much more powerful opponents than protectrons, robobrains and Mister Gutsy models. Their purpose is mainly to guard locations for some high profile characters and organizations, such as REPCONN in Fallout: New Vegas. In Fallout 3 they will be more encountered in office buildings and pose a serious threat, wielding missile launchers and Gatling lasers. The Fallout 2 variants have a total different appearance, similar to super mutants and are able to walk.

Enclave sentry botEdit

Fo3BS Enclave sentry bot
Gameplay article: Fallout 3

Slightly darker in appearance when compared to the normal variant, the Enclave model boasts improved systems. They appear at Raven Rock and alongside Enclave squads in the wasteland. During Broken Steel they are encountered guarding Adams Air Force Base.

U.S. Army sentry botEdit

Military sentry bot
Gameplay article: Fallout 3

Military robots from before the Great War, painted in the characteristic olive green of the U.S. Army. They can be encountered at Fort Constantine, the National Guard depot and when wandering around the wasteland.

Strike Team sentry botEdit

Fo3OA Winterized sentry bot
Gameplay article: Operation: Anchorage

The most expensive option for recruitment in Operation Anchorage is a winterized sentry bot, with a built-in minigun and missile launcher, costing 4 recruitment markers.

Presidential metro sentinal unitEdit

Sentry bot
Gameplay article: Broken Steel

This unique sentry bot is encountered in Broken Steel, at the end of the Presidential metro, near the metro to Adams Air Force Base. It holds the main fuse, which is needed to repair the nearby powerbox for the metro.

Hardened sentry botEdit

Sentry bot
Gameplay article: Fallout: New Vegas

A hardened sentry bot is a hardened version of the military sentry bot. They are Enclave affiliated, encountered along with hardened Mister Gutsies around the crashed vertibird in the Mojave Wasteland.

Prototype sentry botEdit

Gameplay article: Fallout: New Vegas

An antique prototype version that can be found in the museum inside REPCONN headquarters. It has four wheels instead of the standard three, a set of arms stemming from its back and arching around over its shoulders. Where the arms would normally join the main body in current models, it includes 3 jets on each side, as used by Mister Gutsy/Handy robots.

Mark seriesEdit

Sentry bot
Gameplay article: Old World Blues

The sentry bot mark series appears only in the Fallout: New Vegas add-on Old World Blues.

Icon cut contentThe following is based on Fallout: New Vegas cut content and has not been confirmed by canon sources.

NCR sentry botEdit

Military sentry bot
Gameplay article: Fallout: New Vegas

It is similar to the military sentry bot in appearance, but is differently colored, with orange eyes instead of the standard red. The NCR sentry bot was originally intended to be stationed in Camp McCarran, evident in its G.E.C.K. id McCarranFieldSentryBot, but was cut from the final version of Fallout: New Vegas.

Icon cut contentEnd of information based on Fallout: New Vegas cut content.

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