"These inbuilt chemical delivery systems dose marines with a powerful mix of synthetic adrenaline, endorphins, and a psychotropic aggression enhancer. Marines on stims benefit from greatly increased speed and reflexes, but are subject to long-term side effects including and not limited to insomnia, weight loss, mania/hypomania, seizures, paranoiac hallucinations, internal hemorrhaging, and cerebral deterioration. Nonetheless, both commanders and the marines themselves stand by the use of stims as essential to their continued survival and effectiveness on the battlefield."

- The uses and risks of stimpacks.(src)

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TychusFindlayOutZerged SC2 Art1

Tychus Findlay using stims

The stimpack is an in-field chemical delivery system filled with a variety of stimulants. These devices are featured as part of the CMC-200, CMC-400, and later-model CMC-660 combat suits. They are widely used by terran infantry. [1]


"Use your psychoactive hyperstimulants responsibly, boys and girls."

- A Dominion marine on stimpack regulations in the Dominion Marine Corps(src)

Stimpacks were commonly used by terran infantry to help improve combat performance, and were in use as early as the Guild Wars. However, these devices commonly had drastic side effects, including cellular degradation, addiction, weight loss, and hemorrhaging.[1] Medics could help mitigate the side effects.

Although the stimpack is built into these armors, smaller, portable stimpacks exist. These stimpacks can be applied directly to the neck and are compatible with CMC-200 combat suits.[2] A resupply unit is located near the shoulder of the armor.[3]

Historically, administering stimpacks to high PI subjects such as ghosts was considered extremely dangerous.[4] However, some ghosts were known to requisition stimpacks for battlefield operations without command authorization.[5] By the time of the Defenders of Man Insurgency, improved stim formulation alleviated most of those concerns.[4]

By 2505, stimpack abuse was seen as a strict violation of the rules and regulations of the Dominion Marine Corps.[6]

Game AbilityEdit


ResearchStimPack Terran SC1

Marines and firebats double their rate of fire and increase their movement rate for a limited period of time.

Hotkey T
Cost 10HP
Purchased from Academy
Hotkey T
Cost 100 Minerals Terran SC1 100 Gas Terran SC1 80Time SC2 Game1

Stimpacks will not activate if the unit has 10 or less hit points left. Activating stimpacks again before the previous use has worn out resets the timer and subtracts additional hit points; the unit's cool down does not decrease further.

Use medics to get the most from stimpacks.

Some hero and NPC units may come with a pre-researched stimpack ability. Its effects are the same as the researched ability.

StarCraft IIEdit


Enables affected infantry to attack and move 50% more quickly.

Hotkey T
Cost 10 (marines) / 20 (marauders)HP
Duration 11Time SC2 Game1
Purchased from Tech lab attached to barracks
Hotkey T
Cost 100 Minerals Terran SC1 100 Gas Terran SC1 121Time SC2 Game1

Stimpacks in StarCraft II can be used by marines and marauders in multiplayer, as well as by firebats in Co-op Missions. Bunkered marines can use their stimpacks while fighting in the bunker. Unlike marines, marauders take 20 health damage per use of the stimpack instead of 10.

Use medivac dropships and/or medics to get the most from stimpacks.

Co-op MissionsEdit

SuperStimpack SC2-NCO Icon1
Improved Stimpack

Raynor's infantry units are able to use Improved Stim.

Increases movement and attack speeds by 75% for 15 seconds at the cost of 5 health.

Campaign Acquisition
Unlock Initially available.

Nova Covert OpsEdit

In Nova Covert Ops marines, reapers, hellbats and marauders can choose the "super stimpack" option.[7]

SuperStimpack SC2-NCO Icon1
Super Stimpack

Increases unit's attack and movement speeds by 50% for 15 seconds and heals unit for 60 HP. Can be set to autocast.

Hotkey T
Duration 15Time SC2 Game1
Cooldown 18Time SC2 Game1
Campaign Acquisition
Acquired from Save north-western outpost in "Sudden Strike."

In addition, stim influsion can be chosen in the "gadget" category for Nova's loadout in Nova Covert Ops if the Dominion prisoners are rescued in "Enemy Intelligence."[4]

SuperStimpack SC2-NCO Icon1
Stim Infusion

Increases attack speed and movement speeds by 50% for 10 seconds. Heals Nova for 200 life over the effect's duration.

Hotkey X
Duration 10Time SC2 Game1
Cooldown 25Time SC2 Game1
Campaign Acquisition
Acquired from Save crashed transport in "Enemy Intelligence."


The upgrade used to take 170 seconds to research.[8] It was researched at the merc compound.[9][10] It also applied to reapers [11] in multiplayer.

In the StarCraft II: Wings of Liberty single player campaign, Tychus Findlay was also intended to have been given a variant of the Stimpack ability named "Tychus' Secret Stash". It is described instead as a mix of rocket fuel, methamphetamine and various chemicals. Only the button remains in the map editor.[12]

Heroes of the StormEdit

Heroes DevLog2

The following section contains information from Heroes of the Storm and is not canon to StarCraft continuity

Stimpacks appear in Heroes of the Storm and can be purchased to grant a temporary boost to the experience and gold gained per game.[13]


  1. 1.0 1.1 Underwood, Peter, Bill Roper, Chris Metzen and Jeffrey Vaughn. StarCraft (Manual). Irvine, Calif.: Blizzard Entertainment, 1998.
  2. Grubb, Jeff (February 27, 2001). StarCraft: Liberty's Crusade. Simon & Schuster (Pocket Star). ISBN 978-0671-04148-9.
  3. Barba, Rick. StarCraft Field Manual (hardcover). Insight Editions, November 17, 2015.
  4. 4.0 4.1 4.2 Blizzard Entertainment. StarCraft II. (Activision Blizzard). PC. Mission: Nova Covert Ops, Trouble in Paradise (in English). 2016-08-02.
  5. Mesta, Gabriel (July 1, 2001). StarCraft: Shadow of the Xel'Naga. Simon & Schuster (Pocket Star). ISBN 978-0671-04149-6.
  6. Elder, Josh (w), Ramanda Kamarga (p). "Why We Fight." In StarCraft: Frontline: Volume 1 (paperback binding), pp. 6–47. Tokyopop, August 1, 2008. ISBN 978-1427-80721-2.
  7. Blizzard Entertainment. StarCraft II. (Activision Blizzard). PC. Mission: Nova Covert Ops, Enemy Intelligence (in English). 2016-03-29.
  8. Marine. StarCraft II Armory. Accessed 2009-09-04.
  9. Dustin Browder, Robert Simpson, Matt Cooper, David Kim. 2008-12-19. Battle Report (2). Blizzard Entertainment. Accessed 2009-04-16.
  10. Terran Gameplay Footage. StarCraftZine. Accessed 2008-12-11.
  11. Dustin Browder, Robert Simpson, Yeon-Ho Lee. 2009-10-20. Battle Report (4). Blizzard Entertainment. Accessed 2009-10-31.
  12. Blizzard Entertainment. StarCraft II Map Editor. (Activision Blizzard) (in English). July 27, 2010
  13. Blizzard Entertainment. Heroes of the Storm (Blizzard Entertainment) (in English). June 2, 2015