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Undertale OC Maker — Create Your Monster

Make an Undertale OC with AI. Describe your monster or human — soul color, design quirks — and generate retro-inspired original character art free. The prompt is pre-filled — edit it, pick a style, and generate your character free.

Pick traits or write your own prompt

Style *

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Aspect

5 free generations left today · no sign-up needed

What is a Undertale OC Maker?

Undertale OCs thrive on personality quirks in a scrappy retro style: skeletons in hoodies, ghosts with headphones, fish knights. This Undertale OC maker builds yours from a description — species, outfit, one signature quirk, and a soul color for the accent glow.

Design here is quirk-first: one strong visual gimmick, like a glowing eye or a heart-shaped soul motif, paired with an everyday outfit that feels lived-in. The Undertale OC maker rewards restraint — species, outfit, quirk, soul color, background is a complete prompt, and over-specifying produces something too polished for the aesthetic.

Style chips like Pixel Sprite, Battle Mode, Overworld, Deltarune, and Human switch the treatment in one click. Roll four candidates, keep the best expression, then reuse it in Edit OC as a reference for battle sprites and idle loops before Animate. The Undertale OC maker is free to try, and your monster is an original character for fan games and comics.

How It Works Background

How It Works

01

Describe Your Character

Start from the pre-filled prompt and tweak anything — hair, outfit, pose, setting. The prompt box above is ready to edit.

02

Generate & Refine

Hit Create for up to 4 variations. Use the style chips for different looks, then Edit OC with your favorite to keep the character consistent.

03

Animate & Download

Press Animate on any result to turn your character into a short video, then download the art and clips.

Make My Undertale OC Now

Undertale OC Maker Styles & Variations

Pixel Sprite

Add "Pixel Sprite" to your prompt: chunky pixel art sprite style, limited palette, game-ready look.

Battle Mode

Add "Battle Mode" to your prompt: battle encounter pose, soul heart floating, bullet-pattern effects.

Overworld

Add "Overworld" to your prompt: cute overworld proportions, simple background, RPG walking pose.

Deltarune

Add "Deltarune" to your prompt: darker RPG style, sharper shapes, dramatic shadow palette.

Human

Add "Human" to your prompt: human child explorer with striped sweater, determined expression.

Undertale OC Maker FAQ

Describe your monster: species (skeleton, ghost, lizard, fish...), outfit, one memorable quirk like a glowing eye or headphones, and a soul color for accents. Then hit Create. The quirk matters more than complexity — a single strong gimmick is what makes these characters stick.
One quirk, one everyday outfit, one soul color. The style is intentionally scrappy, so restraint reads as authenticity — a skeleton in a hoodie with a glowing eye works better than an ornate design. If you plan to draw comics or fangames later, keep the silhouette simple enough to redraw consistently.
Yes — use the "Pixel Sprite" style chip or add "pixel art sprite" to your prompt for a retro game-style render, then animate it for an idle-loop video. Battle Mode adds the soul heart and bullet-pattern effects.
Yes. Free trial credits are ready , so you can generate your first monster right away. Register only for more credits or a saved gallery.
Yes. Describe the monster and quirk in plain words and the AI renders it in the retro style. The pre-filled prompt on this page already produces a working character — edit it rather than starting over.
Yes. Keep your favorite render as the reference in Edit OC and use it for every new sprite, pose, and scene. Quirks and colors stay on-model across your whole set.
Yes. Press Animate on any generated image for a short video — an idle sprite loop, a battle entrance, or a dialogue shrug. Pixel-art renders animate especially well.
No. OC Maker AI is an independent AI generator. Your monster is an original design inspired by the retro-RPG aesthetic.

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Create Your Undertale OC — Free

The prompt is pre-filled and free trial credits are waiting.

Make My Undertale OC Now