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Summary Edit

"Sentry is an antivirus that when activated copies itself to other nodes. It spreads
fast and deletes enemy programs along the way. Upgrade it to make it stronger."

The Sentry is an offensive Security Node. During the Brute Force phase of a hack, the Sentry simultaneously spreads an Antivirus to all connected nodes.

The maximum level a Sentry can be upgraded to is 21[1]. The maximum number of Sentries you can have on your network is five. Unlike Business Nodes, there are no restrictions on deleting Sentry nodes from the network.

Antivirus InstallationEdit

In order to install an antivirus on a node, it must first be secured. Sentry nodes, along with any other nodes that have an antivirus installed, are able to secure neighboring nodes by sending data packets ("pulses"), represented as small black dots. The base of a node will gradually change from white to black as the node is secured. Once secured, the Sentry will complete the installation by sending a final and much larger pulse.

Higher levels of antivirus require fewer pulses to secure a node. Antivirus installation speed can be increased by having more than one connected node sending pulses. However, the final pulse will always add 1.5 seconds at the end, (1 second for the pulse plus 0.5 seconds to run the install,) regardless of how many connections are being used to secure a node.

Nodes installed with an antivirus will simultaneously spread to other nodes and attack connecting nodes that have been captured at a rate of once per second. A node with an antivirus will stop spreading and attacking if it has been captured. If a node is recaptured by the network, it will retain the original antivirus and continue spreading and attacking as usual.

Antivirus from a higher level Sentry will overwrite the antivirus produced by a lower level Sentry.

Statistics Edit

  • Notes: While the Sentry is technically allowed to upgrade at earlier levels than displayed, the $ Capacity that can be held at those levels is not sufficient to purchase the upgrade. "Required Core Level" displays the highest value of both "Core Level" and "Core Level required to purchase the appropriate Database(s)."
Defensive Stats
125085% per pulse
20 seconds
228095% per pulse
20 seconds
331010~5.26% per pulse
19 seconds
434012~5.26% per pulse
19 seconds
538014~5.88% per pulse
17 seconds
642016~5.88% per pulse
17 seconds
7470196.25% per pulse
16 seconds
8520226.25% per pulse
16 seconds
958025~6.67% per pulse
15 seconds
1064028~6.67% per pulse
15 seconds
1171032~7.14% per pulse
14 seconds
1279037~7.14% per pulse
14 seconds
1387543~7.69% per pulse
13 seconds
1497049~8.33% per pulse
12 seconds
151,08057~8.33% per pulse
12 seconds
161,20065~8.65% per pulse
12 seconds
171,33075~8.65% per pulse
12 seconds
181,47586~9.09% per pulse
11 seconds
191,63599~9.09% per pulse
11 seconds
201,81511410% per pulse
10 seconds
212,01513110% per pulse
10 seconds
Construction Stats
Core Level
1$500501 Minute1
2$1,00015030 Minutes2
3$8,0002001 Hour2
4$32,0002502 Hours3
5$125,0003004 Hours4
6$250,0004008 Hours5
7$400,00045012 Hours6
8$600,00050024 Hours7
9$900,00065036 Hours7
10$1,500,00080048 Hours7
11$2,000,00085060 Hours7
12$2,500,00090072 Hours8
13$3,000,00095092 Hours8
14$3,500,0001,00096 Hours9
15$4,000,0001,080104 Hours9
16$4,750,0001,160112 Hours9
17$5,500,0001,250120 Hours10
18$6,500,0001,330128 Hours10
19$7,500,0001,410136 Hours11
20$8,500,0001,500144 Hours11
21$10,000,0001,660160 Hours12
Totals$61,566,50016,8401,359 Hours
31 Minutes

Gallery Edit

Sentry 01 Sentry 02-03 Sentry 04-05 Sentry 06-07 Sentry 08-09
Level 1 Levels 2-3 Levels 4-5 Levels 6-7 Levels 8-9
Sentry 10-12 Sentry 13-15 Sentry 16-18 Sentry 19-21
Levels 10-12 Levels 13-15 Levels 16-18 Levels 19-21

Tips Edit

Placement / AmountEdit

Having more than 3 Sentries can be ineffective on smaller networks, as other secured nodes can be used to spread the antivirus. If you have more than 3, consider swapping them for Business or Security nodes. As networks get larger, additional Sentries can help against specific attacks, such as Wraiths.

Sentries that are connected to secured nodes such as the Turret or Black ICE will help the antivirus spread quickly through your network. If your secured defenses are spread out, use additional sentries to ensure that all your nodes install the antivirus before an attacker reaches them.

Tips for Offense Edit

  • The faster you take down Sentry nodes, the better. Try to stop the antivirus spreading over the network by capturing nodes quickly.
  • Sentries that are too close to a netConnection are especially vulnerable to attack programs, as they can sometimes be captured before installing an antivirus.
  • Networks with a single high-level sentry are especially vulnerable to Wraiths. Once this Sentry is wraithed, no antivirus will spread through the network.

Tips for Defense Edit

  • Sentries only start installing the antivirus program when a Brute Force hack is initiated.
  • Multiple antivirus pulses can be used to secure a node for installation, but only the highest level of antivirus will be installed.
  • Secured nodes can be used to spread the antivirus across your network quicker.
    • Turret and Black ICE nodes can install the final antivirus pulse without needing to be secured first.
    • Nodes which have a lower level antivirus already installed are also considered secured.
  • Nodes that are being upgraded or have disabled by a Wraith will receive the antivirus, but will not spread it to other nodes and will not be able to attack with the antivirus.


A Sentry is one type of ICEs found in the Netrunner collectible card game.

References Edit

  1. Trickster Arts Forums - Max Level
Hackers Wikia - Nodes List
Nodes Programs Gameplay
Business Nodes

B-coin Mine 19-21B-coin Mine  B-coin Mixer 19-21B-coin Mixer  Structure ConnectionnetConnection  Core 11-12Core  Database 19-21Database  Server Farm 19-21Server Farm 

Security Nodes

Black ICE 19-21Black ICE  Code Gate 19-21Code Gate  Guardian 21Guardian  Scanner 19-21Scanner  Sentry 19-21Sentry  Turret 19-21Turret 

Hacking Nodes

Compiler 04Compiler  Evolver 11-12Evolver  Program Library 17-21Program Library 

A.I. Nodes

Beetle ImageServing A.I. Beetle  Hawk ImageServing A.I. Hawk  Squid ImageServing A.I. Squid 

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