Magna-Blast Grenade

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General Information

Magna-Blast Grenade

This standard issue grenade has an accurate and sophisticated timer for precision control.

Source: Terror From The Deep Ufopaedia

Magna-Blast Grenade
(h x w)
1 × 1 Magna-BlastGrenade.gif
Weight 3
D. Threshold 150
Damage 50 High Explosive
Capacity 1
Sale Price $240
Purchase Price $300
Action TU Cost
Prime Grenade 50%
Throw Grenade 25%

The Magna-Blast Grenade is X-COM's basic underwater hand grenade. It is identical to the old Grenade but also has a stronger protective casing.

The Magna-Blast Grenade is the weakest of the grenades in Terror From The Deep but is relatively cheap to buy and light to carry. It is a good for training weak or inaccurate aquanauts.

Like all standard grenades, it features a timer system where you can set how many half-turns must pass before it will detonate.

A new feature introduced in Terror From the Deep are tougher grenade cases that make them impervious to explosions that are of equal or lesser power. This introduces a new grenade tactic that helps mitigate the Magna-Blast Grenade's weak damage. Multiple grenades can be primed and deployed on the same target on the same turn for increased damage. You can also adjust the timers so that the grenades can explode at different times, such as before the aliens start their turn, and then another immediately after the turn ends.

This weapon appears in Terror from the Deep. For the UFO: Enemy Unknown equivalent, refer to the Grenade.

For a more detailed explanation on various grenade particulars, such as the grenade timer, refer to: Understanding Grenades

Key Features
  • Indirect
  • Area-Effect
  • Timer
Pros Cons
  • Light
  • Cheap
  • High destruction threshold
  • Weak

Underwater Grenade Physics

Magna Blast Grenades and all other grenades in Terror From the Deep do not suffer from water resistance and can be thrown under water as easily as if they were on land. As this completely goes against physics as we know it, this requires some suspension of disbelief. To even attempt to explain it would require a healthy dose of 'making stuff up'. Just ignore it and enjoy the game.


Magna Blast grenades are good a beginner weapon for rookie aquanauts. They are easy to use and don't require a great deal of combat skill to use effectively and will also help train the Aquanauts strength and firing accuracy. Good strength helps improve throwing range.

For beginners to using grenades in the X-Com series, be mindful of overhangs in the path of your grenade throwing arc as well as anything immediately above your aquanaut.

See Also

TFTD Badge Terror From The Deep: Equipment (TFTD)
Armor Diving SuitPlastic Aqua ArmorIon ArmorMagnetic Ion Armor
Weapons Dart GunJet HarpoonGas CannonHydro-Jet CannonTorpedo LauncherThermal Tazer

Magna-Blast GrenadeParticle Disturbance GrenadeMagna-Pack Explosive
Gauss PistolGauss RifleHeavy Gauss
Sonic PistolSonic-Blasta RifleSonic CannonSonic PulserThermal Shok LauncherDisruptor Pulse Launcher
Vibro BladeThermic LanceHeavy Thermic Lance

Portable Equipment Dye GrenadeParticle Disturbance SensorMedi-KitChemical-flareM.C. DisruptorM.C. ReaderZrbite
SWS Coelacanth/G. CannonCoelacanth/Aqua JetCoelacanth/GaussDisplacer/SonicDisplacer/PWT
Data Weapon Summaries TFTD Item destruction table • SWS/Terror Unit Innate Weapons