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COLLAB - ::Endermaretale - Baby Goat Bleats:: :iconxxmileikaivanaxx:xxMileikaIvanaxx 1,885 409 GIFT - ::Marshmallow Hunt:: :iconxxmileikaivanaxx:xxMileikaIvanaxx 884 151 A Bunch of Sanses :icondizplicity:Dizplicity 1,636 218 ::Nightmaretale - pg 93:: :iconxxmileikaivanaxx:xxMileikaIvanaxx 411 229 Reminiscence: Undertale Fan Comic Pg. 17 :iconsmudgeandfrank:Smudgeandfrank 2,430 607 ::Collab - Shorties:: :iconxxmileikaivanaxx:xxMileikaIvanaxx 1,004 214 COLLAB - ::Endermaretale - Baby Meets Flowey:: :iconxxmileikaivanaxx:xxMileikaIvanaxx 767 463 ::Nightmaretale - pg 91:: :iconxxmileikaivanaxx:xxMileikaIvanaxx 545 305 Underswap Papyrus!!!! One Angry Carrot :iconwalkingmelonsaaa:WalkingMelonsAAA 4,776 311 ::Nightmaretale - pg 90:: :iconxxmileikaivanaxx:xxMileikaIvanaxx 568 407
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 2,103 4,053
Horrortale Sans| C'mon I'm not gonna kill you, Kid :iconkyubeygirl:KyubeyGirl 1,249 153 Chesstale sans :iconlovapples:Lovapples 1,962 369 ::Nightmaretale - pg 92:: :iconxxmileikaivanaxx:xxMileikaIvanaxx 363 224 A lot of sansys :iconmibur:Mibur 1,693 172 ErrorSans vs. InkSans! :iconwalkingmelonsaaa:WalkingMelonsAAA 5,022 334 Under-Upper AU: Ch6 Page 8 :iconmichpajamaartist:MichPajamaArtist 419 282 ::Nightmaretale - pg 81:: :iconxxmileikaivanaxx:xxMileikaIvanaxx 587 368 Chesstale - Sans and Frisk - Checkmate Kid :iconwalkingmelonsaaa:WalkingMelonsAAA 5,061 221 Different Timelines, Different Possibilities.. :iconkana-the-drifter:Kana-The-Drifter 2,552 237 Ink and Error :iconristorr:Ristorr 1,078 148 Ink!Sans!!!! - Commission :iconwalkingmelonsaaa:WalkingMelonsAAA 5,818 440 Gztale - That's harsh, man. :icongolzyblazey:GolzyBlazey 2,455 139 I don't have mercy :icongolzyblazey:GolzyBlazey 1,943 182 COLLAB - ::Endermaretale - How it all began:: :iconxxmileikaivanaxx:xxMileikaIvanaxx 968 285 Gztale - Fake Screenshot :icongolzyblazey:GolzyBlazey 2,467 284 ::Nightmaretale - pg 85:: :iconxxmileikaivanaxx:xxMileikaIvanaxx 461 282 COLLAB - ::Endermaretale - Turkey Troubles:: :iconxxmileikaivanaxx:xxMileikaIvanaxx 729 196 [Smile] :iconwolfifi:wolfifi 1,220 58 Gztale - Fake Screenshot (3) + SPEEDPAINT :icongolzyblazey:GolzyBlazey 2,062 147 [Resetti to Forgetti] :iconwolfifi:wolfifi 894 98 ::Nightmaretale - PG1:: :iconxxmileikaivanaxx:xxMileikaIvanaxx 939 117 ::Nightmaretale - pg 84 (Read Description) :iconxxmileikaivanaxx:xxMileikaIvanaxx 530 387 ::Nightmaretale - pg 80:: :iconxxmileikaivanaxx:xxMileikaIvanaxx 559 320 [UNDERFELL] There is good in everybody :iconeeveelover64:EeveeLover64 838 58 Underfell Sans (Flowerfell) :icondaffupanda:Daffupanda 1,588 109 ::Nightmaretale - pg 74:: :iconxxmileikaivanaxx:xxMileikaIvanaxx 525 446 ::Nightmaretale - pg 87:: :iconxxmileikaivanaxx:xxMileikaIvanaxx 461 236 Under-Upper AU: Ch6 Page 6 :iconmichpajamaartist:MichPajamaArtist 480 299 [Underswap] Sans - ''I Believe in you!!!'' :iconneko-priestess327:Neko-Priestess327 995 350 ::Nightmaretale - pg 77:: :iconxxmileikaivanaxx:xxMileikaIvanaxx 479 268 Gztale - Fake Screenshot (2) :icongolzyblazey:GolzyBlazey 2,061 139 Sans Pile :iconequilibrik:equilibrik 911 201 Under-Upper AU: Ch6 Page 5 :iconmichpajamaartist:MichPajamaArtist 469 431 ::Nightmaretale - pg 82:: :iconxxmileikaivanaxx:xxMileikaIvanaxx 479 323 Under-Upper AU: Ch5 Page 6 :iconmichpajamaartist:MichPajamaArtist 606 585