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Sentry (Unit)

EnemiesTower Defense Simulator

Overview

The Sentry, internally referred to as Sentry1, is the first sentry that is spawned by the Engineer. It spawns when the Engineer is at Level 0-2. It does not spawn on the path and instead on a ground spot in the Engineer's sentry placement range. It takes about 1.25 seconds to build the Sentry.

Stats

Damage Type
Single
Enemy Type
unit
Flying
No
Health
100
Hidden
No
Lead
No
Source
Engineer

Description

The Sentry, internally referred to as Sentry1, is the first sentry that is spawned by the Engineer. It spawns when the Engineer is at Level 0-2. It does not spawn on the path and instead on a ground spot in the Engineer's sentry placement range. It takes about 1.25 seconds to build the Sentry. There is a limit of one unit per Engineer when it is at Level 0-2, limiting the amount of Sentries it can spawn.

Appearance

The Sentry is a quadpod device constructed out of metal, colored black and white. It is a sentry that uses a mounted rifle to attack at enemies. It also has a red laser mounted on top.

Strategy

The Sentry can do well against enemies that appear early on, such as the Slow or Heavy. The Sentry does not have hidden detection, meaning you have to either rely on the Engineer for hidden detection or use other towers. Since the Engineer by itself has very low DPS at the levels the Sentry is spawned, other towers like the Minigunner are recommended. The Sentry is not affected by any buff or debuff. The Sentry will struggle against any enemy with abilities that damage units, because of its low health. For example, if the Fallen King uses its Sword Swing attack, and a Sentry is caught in the attack, it is instantly destroyed.

Trivia

The Sentry is based on the Sentries created by the Engineer Monkey from the Bloons Tower Defense series. The Sentry is also based on the Sentry Gun built by Engineer from Team Fortress 2

Community-sourced from tower-defense-simulator-roblox.fandom.com · Jul 25, 2026

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Some facts and text on this page are adapted from the Tower Defense Simulator community wiki, available under CC BY-SA. Game art © their respective creators.