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Mod Ark Eternal logo.png
Mod Ark Eternal logo.png This article is about content exclusive to the mod Ark Eternal.
This content is only available if the mod is installed on a server or on single player.

Eternal Mek Backpack Shield
M.D.S.M. (Extinction).png
Mek Deployable Shield Module. Equip a Mek with this module to arm it with a large deployable dome shield. Unequipping reduces durability.
Armor rating
Stack size
Spawn Command
cheat giveitem "Blueprint'/Game/Mods/AE/Items/Extinction/Saddles/PrimalItemArmor_MekBackpack_Shield_AE.PrimalItemArmor_MekBackpack_Shield_AE'" 1 0 0
Required level
Engram points
40 EP
Crafting XP
107.2 XP
Crafting time
Required stations

The Eternal Mek Backpack Shield also known as the M.D.S.M. or Mek Deployable Shield Module is an item from the DLC Extinction.


By pressing C, Right Stick, Right Stick, a spherical dome will be formed around the Mek. It can be deactivated by pressing those controls again or exiting the dome. The shield generates heat while active, and will also automatically deactivate once overheated.

While active, allies inside the dome will take reduced damage. This buff is signalled by the presence of a aura of blue squares rising from them (needs testing on actual armour increase).

When the shield deactivates, all the enemies that were under the shield get 50% increased damage taken for 90 seconds; Exiting active enemy shields also triggers the effect. This debuff is signalled by the presence of a aura of red squares rising from them.


  • This is the only module to provide passive Armour, akin to Saddles, making it extremely useful in direct confrontations and PvP battles.
  • The shield only protects the Mek from projectiles (including Meteors), it has no use as a creature barrier of any kind.
  • It is practically impossible to have both effects active on the same situation, as enemies have their debuff canceled when entering an active shield dome and the shields stops projectiles of allies from exiting the dome.