Alpha v1.2.1_01[1][2] is a version of Alpha released on November 5, 2010, to fix a bug relating to armor.
This version is duplicated inside the launcher, as attempting to play a version labeled "Alpha v1.2.1" will download and launch v1.2.1_01 instead.[3]
Fixes[]
1 bug fixed
Fixed armor not having an effect on the damage taken.