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Undertale/Deltarune NSFW mods?


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Posted

had trouble with toriel church down sprite because breast size didn't look great and i don't want to mess with the deltarune emblem so I made her breasts bigger. will have to go back and increase boob size for previous sprites.

 

 

Spoiler

spr_toriel_walk_down_church.png.8461b5e39432d81c6b09711c2318566c.png

 

Posted (edited)
18 minutes ago, tails47 said:

will have to go back and increase boob size for previous sprites.


I see this as an absolute win.

 

Edited by Schvorb
  • 2 weeks later...
Posted

Been gone for a bit, random stuff kept eating up my free time. Finished chapter 4 sprites for toriel but still need to update previous ones from older chapters.

should be ready to release before end of week.

 

previews

Spoiler

spr_toriel_d.png.e383f83fcae66eeb77b41ce3d5ae720e.pngspr_toriel_l_blush.png.4e9b7181266b7097c9d1aceffa1c634a.pngspr_toriel_walk_down_church.png.ab38d9250c7eb4f51e11e097535326df.pngspr_toriel_walk_left_church_unhappy.png.543b72a5703d6c6ef906a25b9751e3a1.png

spr_toriel_kris_pinch_cheek.png.43a2080b42c2a7b45900d4f8089e7726.png

spr_toriel_sans_dance_loop.png.d977840df948b1b925ecf040c41005e3.pngspr_toriel_laugh_fall.png.fe1eda6e4316537c268f86df89af28bb.png

 

Posted
On 2/16/2026 at 8:26 AM, tails47 said:

Been gone for a bit, random stuff kept eating up my free time. Finished chapter 4 sprites for toriel but still need to update previous ones from older chapters.

should be ready to release before end of week.

 

previews

  Reveal hidden contents

spr_toriel_d.png.e383f83fcae66eeb77b41ce3d5ae720e.pngspr_toriel_l_blush.png.4e9b7181266b7097c9d1aceffa1c634a.pngspr_toriel_walk_down_church.png.ab38d9250c7eb4f51e11e097535326df.pngspr_toriel_walk_left_church_unhappy.png.543b72a5703d6c6ef906a25b9751e3a1.png

spr_toriel_kris_pinch_cheek.png.43a2080b42c2a7b45900d4f8089e7726.png

spr_toriel_sans_dance_loop.png.d977840df948b1b925ecf040c41005e3.pngspr_toriel_laugh_fall.png.fe1eda6e4316537c268f86df89af28bb.png

 

These are coming along quite nicely. You gonna do Susie next?

Posted
10 hours ago, PulseTheGryphon said:

These are coming along quite nicely. You gonna do Susie next?

Susie will be next. I'll be taking a break for about 4 or 5 weeks to catch up on my game backlog after updating the mod. 

 

 

Posted

New version of breast mod is here.

update includes toriel as of Ch4 and changes to noelle left/right sprites. also added an all in one folder if you want to install everything instead of one character at a time.

will return in a month to do susie sprites.

 

Breast mod (SFW).zip

gif.zip

 

install

Spoiler
  1. unzip breast mod
  2. run UndertaleModTool
  3. go to File in top left corner
  4. click open
  5. find deltarune game folder and open
  6. go to chapter1_windows folder
  7. double click data.win or data
  8. go to Scripts in top left corner
  9. go to Resource Importers
  10. click ImportGraphics.csx
  11. click yes on script question
  12. go to unzipped breast mod
  13. go to character folder(toriel,noelle) or all in one folder
  14. go to chapter 1 folder
  15. single click sprites folder and click open

it should say import complete!
repeat steps above for chapter 2 thru 4 sprites and enjoy.

 

toriel previews

Spoiler

spr_toriel_l.png.b0077d49933f7a0da29e4848221898bf.pngspr_toriel_d.png.74a775eea9042f6b2f4e24e0595d353e.pngspr_toriel_r.png.92ece68743c7b654d79824fa1895cd79.png

spr_toriel_walk_left_church.png.03ef5cd93b86646b44ad9c45bd50a850.pngspr_toriel_walk_down_church.png.4ea7036724954ae7f57980ccd4fb463f.pngspr_toriel_walk_right_church.png.8f22c15259ba4ece5d6de5d9c6391287.png

spr_toriel_handhold_r.png.f1db6bda777bd79de77d5f36291af20f.pngspr_toriel_sans_dance_kick.png.b9ac00af72459a19ddfb5ae297284c61.png

 

noelle previews

Spoiler

spr_noelle_walk_left_lw.png.40bb0dc1959f99501999b331f114327e.pngspr_noelle_walk_down_lw.png.4f680920b54aea1fb6029c76ff6adb3a.pngspr_noelle_walk_right_lw.png.9bec49686fdad342ad47e2e27df40ef4.png

spr_noelle_walk_left_dw.png.f294f03de2a53f3e459274191d0330f1.pngspr_noelle_walk_down_dw.png.2801ddc348fbf2c883917ecd52af8ef1.pngspr_noelle_walk_right_dw.png.f75e10d1ff0bbd117ac5db214c154ec4.png

spr_noelle_game_done.png.1f7030bacc2dbf60bd1f079fdc931973.pngspr_noelleb_spell.png.bec78aded1f06de0f5d068ea7e17f740.pngspr_noelleb_victory.png.1c02675f159c145834786228d6548409.png

 

Posted (edited)

I'll making a Bimbo/sexy susie mod sooo i wanted some feedback about these spritess

 

I am still thinking about making for noelle and others (specially females lol)

Bimbo susie.png

Edited by stroke47
Posted
On 2/21/2026 at 9:31 PM, tails47 said:

New version of breast mod is here.

update includes toriel as of Ch4 and changes to noelle left/right sprites. also added an all in one folder if you want to install everything instead of one character at a time.

will return in a month to do susie sprites.

 

Toriel looks amazing - thank you as always for all your hard work!!
But TBH I'm not a fan of the changed Noelle sprites. She looked better and bustier before; now I can hardly tell a difference between the mod and her vanilla left/right sprites. :(

Posted
20 hours ago, stroke47 said:

I'll making a Bimbo/sexy susie mod sooo i wanted some feedback about these spritess

 

I am still thinking about making for noelle and others (specially females lol)

Bimbo susie.png

You... might want to try smaller sprites. These look twice the height and width of Susie's actual sprites, and that's probably gonna cause problems

Posted
On 2/24/2026 at 12:09 PM, Schvorb said:

 

Toriel looks amazing - thank you as always for all your hard work!!
But TBH I'm not a fan of the changed Noelle sprites. She looked better and bustier before; now I can hardly tell a difference between the mod and her vanilla left/right sprites. :(

Yeah, it looked better when it was zoomed in while working on it. I can change it back next update with susie and people can use the Old noelle mod on the previous page until then.

Posted
On 2/26/2026 at 4:46 PM, tails47 said:

Yeah, it looked better when it was zoomed in while working on it. I can change it back next update with susie and people can use the Old noelle mod on the previous page until then.

Maybe go for a middleground? The new frontsprites look fine, imo.

Posted
On 2/26/2026 at 4:46 PM, tails47 said:

Yeah, it looked better when it was zoomed in while working on it. I can change it back next update with susie and people can use the Old noelle mod on the previous page until then.

Maybe go for a middleground? The new frontsprites look fine, imo.

Posted
On 2/27/2026 at 10:53 PM, PulseTheGryphon said:

Maybe go for a middleground? The new frontsprites look fine, imo.

I'll probably make two versions of the mod when the time comes.

Posted

Found another big Deltarune nude resprite mod over on twitter that you guys might enjoy. Everyone should go show them a little support because it seems like they're being harassed and called some really nasty things over Deltarune porn.

https://x.com/DELTAGOONERMOD

 

Posted
On 3/3/2026 at 4:46 PM, losstie27 said:

Found another big Deltarune nude resprite mod over on twitter that you guys might enjoy. Everyone should go show them a little support because it seems like they're being harassed and called some really nasty things over Deltarune porn.

https://x.com/DELTAGOONERMOD

 


Oh damn, it sucks to see so much hate swirling around this. I'm really curious to see how this project'll turn out, especially since it seems their sprites are pretty competent (if a bit big. That seems like it's going to be a hurdle to implement.)

I'm tempted to give their Discord a looksie to see what progress they've made, but it looks like they're locked down atm. Probably because of the harassment.

Posted (edited)

-----------------------------------------------------------------------------------------------

 

Here's some amateur nude edits of QC's and Bratty's sprites only from Chapter 1

 

-----------------------------------------------------------------------------------------------

 

Sprites

spr_npc_qc_stand.png.8a7deb95bd9817634ec80d6da70cc828.pngspr_npc_qc_0.png.0006360e10f3304a6d252c475827db26.pngspr_npc_qc_1.png.3b8f8eea3483dbaf4011833d9370338f.pngspr_npc_qc_wave_0.png.94dfadc76be5ec644e91920586b1111f.pngspr_npc_qc_wave_1.png.1f04532ff801f23b1c24898ce25a606a.pngspr_npc_bratty_0.png.5a59bef8db4a1a007160890990fbae86.pngspr_npc_bratty_1.png.8630256533156aba58c75725d02f6cae.png

 

Screenshot

 

Screenshotfrom2026-03-0709-57-18.png.d21af65f75cf3b00f203e7502a1f59c2.png

Screenshotfrom2026-03-0720-44-38.png.d09fd16b167d6cd5539cef0769674546.png

Edited by Sunshine Recorder
Posted
On 2/23/2026 at 3:51 PM, stroke47 said:

I'll making a Bimbo/sexy susie mod sooo i wanted some feedback about these spritess

 

I am still thinking about making for noelle and others (specially females lol)

Bimbo susie.png

You should add a cock

Posted
On 12/8/2025 at 9:28 PM, SoggyRune said:

Here's some stuff I did recently for my au mod.

 

animated erections for Kris ingame

 

Lewd redesign of the bigmouth nurse at the hospital

 

5538018_nurse_preview.png

 

A preview of what sex scenes could look like ingame, and an animated version of the closeup itself.

 

5538011_sex_test_full.png

5538010_sex_test.gif

 

A cutscene bug lol

 

Hows the progress on this going currently?

Posted
On 3/14/2026 at 2:59 PM, Anon69310 said:

Hows the progress on this going currently?

 

I took a bit of a break from it since january, but I'm doing stuff for it again. Currently I'm coding up the ui I'll be using for sex scenes. All the coding for making new cutscenes is mostly finished, but I'm struggling a little with the writing.

The most recent art is this, but that was also done in january.

Posted
10 hours ago, SoggyRune said:

 

I took a bit of a break from it since january, but I'm doing stuff for it again. Currently I'm coding up the ui I'll be using for sex scenes. All the coding for making new cutscenes is mostly finished, but I'm struggling a little with the writing.

The most recent art is this, but that was also done in january.

I kinda liked the older more hyper models you made; like the original Toriel one.

  • 3 weeks later...
Posted

Not done backlogging games yet but I did a little work on susie lightworld sprites inbetween.

Spoiler

version 1

sus_boobs1.png.2df7dba55e7997e3c11ecf14f630d8b8.png

version 2

sus_boobs2.png.c3bd70cc9cb49d0b8a22319319b9ebb6.png

 

My only problem right now is her darkworld sprite because her jacket/shirt is not balanced with one side of her chest having more pixels then the other and she has a lot of black pixels around her chest in darkworld so its hard to see boob outline unless I greatly change the normal look of the sprite (i.e. change jacket into tanktop or something similar).

 

Lastly, I made one nude susie sprite to help me shape susie's breast mod sprites for ideas and as a base for when I get around to making a nude mod.

Spoiler

sus_nude.png.b98f2e28d410f8d1043c1577f0dac8a9.png

 

Any feedback is welcome and if most people would rather I move to nude sprites now let me know.

Posted
20 hours ago, tails47 said:

Not done backlogging games yet but I did a little work on susie lightworld sprites inbetween.

  Reveal hidden contents

version 1

sus_boobs1.png.2df7dba55e7997e3c11ecf14f630d8b8.png

version 2

sus_boobs2.png.c3bd70cc9cb49d0b8a22319319b9ebb6.png

 

My only problem right now is her darkworld sprite because her jacket/shirt is not balanced with one side of her chest having more pixels then the other and she has a lot of black pixels around her chest in darkworld so its hard to see boob outline unless I greatly change the normal look of the sprite (i.e. change jacket into tanktop or something similar).

 

Lastly, I made one nude susie sprite to help me shape susie's breast mod sprites for ideas and as a base for when I get around to making a nude mod.

  Reveal hidden contents

sus_nude.png.b98f2e28d410f8d1043c1577f0dac8a9.png

 

Any feedback is welcome and if most people would rather I move to nude sprites now let me know.

I like how her jacket moves in the second walk anim. Feels more dynamic that way.

 

I'd personally wrap up Susie's sprites before moving on to nude versions, but that's just me.

Posted

ive been working on a mod that adds some nude sprites (though im not very good at sprite editing just yet) romance paths more sexual story and full on sex scenes. Anyone have any tips or ideas? So far ive got chapter 1's school segment down.

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