Floater (Fallout)

Floaters are hostile mutant creatures found in the Fallout universe. Some of them are likely originated from the FEV-infected flatworms mentioned in the FEV Experiment Disk, while other are products of The Master's experiments. They are often found in groups with Centaurs.

They are completely immune to electrical damage, but have no resistance to fire damage.

Appearances in games
Floaters appear in Fallout and Fallout 2. Although they do not appear in Fallout 3, The Art of Fallout 3 book available with the collector's edition of the game includes floater concept art.