- For the lore term, see Argent plasma.

Opens when approached.

Collected.
An Argent Energy Cell is a collectible item in DOOM and Mighty Doom. These consist of white chests with small glass spheres containing volatile plasma energy.
When collected in the former game, the player gains an additional attribute point to be spent on one of the three attributes: max health, ammo, or armor. Most levels have one Argent energy cell, but two have two cells each, and the very first level and the last two levels have none. There are twelve Argent cells in the game, and collecting them all will enable the player to upgrade his three attributes four times each. Furthermore, at the time it is collected, each Argent cell will replenish whichever attribute was chosen (including ammo) to the new max.
In the latter game, Argent energy cells are the main, vital resources for leveling up Slayers the player collected, augmenting their base maximum health and attack power. Players can earn a maximum of 160 Argent Cells in a full run. The amount of Argent Cells needed to level up a Slayer to the next level is seven times the Slayer's current level, although no Slayer can have a level higher than the player's profile level.