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COLLAB - ::Endermaretale - Baby Goat Bleats:: :iconxxmileikaivanaxx:xxMileikaIvanaxx 2,247 465 A Bunch of Sanses :icondizplicity:Dizplicity 1,763 238 Reminiscence: Undertale Fan Comic Pg. 17 :iconsmudgeandfrank:Smudgeandfrank 2,463 610 GIFT - ::Marshmallow Hunt:: :iconxxmileikaivanaxx:xxMileikaIvanaxx 996 161 ::Collab - Shorties:: :iconxxmileikaivanaxx:xxMileikaIvanaxx 1,097 221 *you faced five sans on judgement hall. :iconnogoojing:nogoojing 889 247 *You dirty brother killer - Chara (Storyshift) :iconkyashee:kyashee 648 55 Underswap Papyrus!!!! One Angry Carrot :iconwalkingmelonsaaa:WalkingMelonsAAA 4,885 315 COLLAB - ::Endermaretale - Baby Meets Flowey:: :iconxxmileikaivanaxx:xxMileikaIvanaxx 923 509 A lot of sansys :iconmibur:Mibur 1,727 173
Journal
A Guide to Undertale AUs
Submissions are temporarily closed. You can still submit, but I won't be adding them in for a while. I just need a little break from everything.
If you submit an AU and don't have a link, your submission will be deleted.

Want to submit an AU? Click here and read this!
Have a question? It may have been answered, check the FAQ!
Click the titles of categories to see more on the AUs listed below them.

Theme
Every single character in Undertale is changed. AUs that only affect some of the characters are not found here, nor are AUs that change only during the time Frisk is within the underground.
Basic Change (<-THIS IS A LINK)
The basic theme of Undertale is changed, flipped, or modified while still remaining in the same basic sto
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:iconfarsidejr:farsidejr 2,174 4,125
Chesstale sans :iconlovapples:Lovapples 1,997 375 ErrorSans vs. InkSans! :iconwalkingmelonsaaa:WalkingMelonsAAA 5,142 339 Different Timelines, Different Possibilities.. :iconkana-the-drifter:Kana-The-Drifter 2,572 237 I don't have mercy :icongz-studio:GZ-studio 1,972 186 Chesstale - Sans and Frisk - Checkmate Kid :iconwalkingmelonsaaa:WalkingMelonsAAA 5,148 222 Horrortale Sans| C'mon I'm not gonna kill you, Kid :iconkyubeygirl:KyubeyGirl 1,291 155 Gztale - That's harsh, man. :icongz-studio:GZ-studio 2,481 141 Ink and Error :iconristorr:Ristorr 1,117 152 Ink!Sans!!!! - Commission :iconwalkingmelonsaaa:WalkingMelonsAAA 5,940 443 Gztale - Fake Screenshot :icongz-studio:GZ-studio 2,501 288 Gztale - Fake Screenshot (3) + SPEEDPAINT :icongz-studio:GZ-studio 2,079 149 i won't harm you any longer :iconpaurachan:paurachan 310 35 COLLAB - ::Endermaretale - How it all began:: :iconxxmileikaivanaxx:xxMileikaIvanaxx 1,090 298 COLLAB - ::Endermaretale - Turkey Troubles:: :iconxxmileikaivanaxx:xxMileikaIvanaxx 793 208 ::Nightmaretale - PG1:: :iconxxmileikaivanaxx:xxMileikaIvanaxx 985 124 Underfell Sans (Flowerfell) :icondaffupanda:Daffupanda 1,651 110 ::Nightmaretale - pg 93:: :iconxxmileikaivanaxx:xxMileikaIvanaxx 482 312 GlitchTale - Dust Screenshots (w/ Speedpaint) :iconscribbleshadows:Scribbleshadows 392 88 ::Nightmaretale - pg 91:: :iconxxmileikaivanaxx:xxMileikaIvanaxx 564 308 ::Nightmaretale - pg 90:: :iconxxmileikaivanaxx:xxMileikaIvanaxx 587 412 ::Nightmaretale - pg 94:: :iconxxmileikaivanaxx:xxMileikaIvanaxx 467 369 Gztale - Fake Screenshot (2) :icongz-studio:GZ-studio 2,090 140 [Smile] :iconwolfifi:wolfifi 1,253 59 Ink!Sans :iconchiarasanchi:chiarasanchi 1,184 85 Anamnesis EPILOGUE #1 :icongz-studio:GZ-studio 894 62 Horrortale Papyrus :iconsafulousart:SafulousArt 801 82 [Underswap] Sans - ''I Believe in you!!!'' :iconneko-priestess327:Neko-Priestess327 1,027 374 It's Murder Part 10 GZTALE Animation :icongz-studio:GZ-studio 2,325 159 ::Nightmaretale - pg 81:: :iconxxmileikaivanaxx:xxMileikaIvanaxx 600 370 Underfell - Snowdin - 178 :iconkaitogirl:Kaitogirl 324 248 Sans Pile :iconequilibrik:equilibrik 936 206 Horrortale Sans :iconsafulousart:SafulousArt 656 90 [UNDERFELL] There is good in everybody :iconeeveelover64:EeveeLover64 875 65 ::Nightmaretale - pg 95:: :iconxxmileikaivanaxx:xxMileikaIvanaxx 476 384 Under-Upper AU: Ch6 Page 8 :iconmichpajamaartist:MichPajamaArtist 457 338 Undertale AU Skelebro's List 1 :icongranpris:Granpris 241 17 Under-Upper AU: Ch5 Page 6 :iconmichpajamaartist:MichPajamaArtist 616 590 Undertale Mystery Dungeon Au :icondaffupanda:Daffupanda 1,185 113 Under-Upper AU: Ch6 Page 1 :iconmichpajamaartist:MichPajamaArtist 558 609