Alien Tablets (Disambiguation)

Alien Tablets may refer to:
 * Purple Tablet, a tablet found in multiple places and required to open many doors.
 * Orange Tablet, a tablet used exclusively to unlock the Lost River Laboratory Cache.
 * Blue Tablet, a tablet used to access the Primary Containment Facility.
 * Red Tablet, a cut tablet with a red symbol resembling an R. (unused)
 * White Tablet, a cut tablet with a white symbol resembling a T. (Used in below zero)