Tag · 9 works
Some results are potentially explicit
Undertale (Video Game)
by kaliawai512
You always have a choice. You can always choose Mercy, no matter how many times you have chosen to Fight. You can always change your mind, become a better person, if you just try. But your actions have consequences, and no amount of Mercy can change what has already been done.Gaster chooses Mercy. He just does it a little too late.Based on Zarla’s “Handplates.”
Undertale (Video Game)
by kaliawai512
Gaster had the means to repair one of his greatest mistakes, but he never had the chance.Until he does. Now it's just a matter of whether he has the will to, and whether the one he has so horribly wronged is willing to let him try.Based on the "mercyplates" AU of Zarla's "Handplates." Sequel to "Bandages."
Undertale (Video Game)
by Anonymous
W.D. Gaster, the current Royal Scientist, never wanted children. So when he appears in the throne room, holding two babybones, everybody is confused.Handplates is by zarla-s, this fic is for TheFallenHuman.
Undertale (Video Game)
by CaitieLou
The Handplates AU by Zarla is a pretty dark place, and it looks like Dr. Gaster will never reveal his secret to anyone. But, what if he got caught...?
Undertale
Undertale (Video Game)
Undertale (Video Game)
by MysterySusu
Yandere!Gaster lapses over his son, but this time he goes too far. But he knows how to fix it, he'll never hurt them again after today. (Yes I can't write summaries and what can you do about it-)
Undertale (Video Game)
by RandomStuff_7739
All Gaster ever does is hurt the ones he loves. This is the only way he’ll stop for good.