Nella Glint
Moth monster- Keeps lanterns lit in Waterfall
- Afraid of deep water
- ACT: Offers a glow
Free Undertale character generator
Undertale OC Creator & Maker
This Undertale OC maker helps you create an original monster from the Underground or a human visitor with a SOUL color. Pick a home, a readable pixel-art silhouette and a gentle ACT or MERCY moment, then draw your own character.
- No drawing skills needed
- 10 bonus credits when you sign up
- First image free
- Moth monster
- Waterfall lantern keeper
- Offers a light to strangers
gentlecarefulbright
palette
Ideas
Undertale OC ideas from the Underground
Each idea starts with a home, a small kindness and one silhouette you can recognize in pixel art. Load a card, then make the details your own.
Bram Puddle
Frog monster- Counts raindrops in the Ruins
- Carries an oversized umbrella
- ACT: Shares a dry spot
Cairn Moss
Pebble monster- Stacks trail markers in Snowdin
- Too slow to finish a race
- ACT: Points the way
Wisp Locket
Ghost monster- Folds paper stars in New Home
- Gets shy when praised
- ACT: Shares a star
Orin Slate
Skeleton OC- Fixes signs in Hotland
- Carries a ruler in one pocket
- ACT: Straightens a sign
Tavi Finch
Human visitor- Finds maps in old books
- Patience is a practiced choice
- ACT: Waits and listens
Know the rules
Monsters, human SOULs and places, explained
Monsters fill the Underground with many shapes and daily routines. Human SOUL colors have six named traits in the Snowdin Ball Game; red has no confirmed trait. ACT and MERCY make a character more than an outfit.
- Undertale first released
- 2015
- Undertale first released
- human SOUL colors shown
- 7
- human SOUL colors shown
- named traits in the Ball Game
- 6
- named traits in the Ball Game
- main Underground areas
- 5
- main Underground areas
Sources: Undertale official site; Human SOULs and Ball Game; Underground locations
Moth monster
An original moth monster can keep a lantern, fold its wings into a coat shape and worry about dark corners. Let a useful job and one small fear shape its ACT. A lantern keeper might know every safe turn through a cave yet hesitate at a deep pool. Put that contrast in the design: broad wings for shelter, a small light for guidance, and boots made for a damp path.
soft wingslantern jobgentle ACT
Frog monster
A frog monster suits the Ruins or Waterfall, but its personality should do more than repeat a species joke. Try a raincoat, a hobby and a way to help a lost visitor. Bram counts drops from a leaky ceiling and keeps an umbrella handy. His round glasses, wide coat hem and orange canopy should still read when the drawing shrinks to a battle-sized sprite.
small silhouetteclear hobbyhelpful choice
Pebble monster
A pebble monster can use its round form as a readable sprite shape. Place it along a snowy trail or a cavern path and give it a reason to meet travelers. Cairn marks the gentlest route through Snowdin. The moss tuft helps separate the head from the body, while mittens and boots show how a small creature handles the cold without changing its simple outline.
round shapetrail markersteady friend
Ghost monster
Ghost monsters exist in Undertale, so a quiet original ghost fits. Give it its own cape, pastime and face rather than borrowing the cast’s music or clothing. A folded paper star gives Wisp a specific activity and a gift for a traveler. Keep the patchwork cape and pin visible in a small portrait, and use the expression to show shyness without making the design scary.
floating formdistinct pastimesoft mood
Skeleton monster
A skeleton OC belongs in this world, but it needs an original build and outfit. Orin uses square glasses, a narrow skull and an ochre work coat. Keep the face, colors and job distinct from the famous skeleton brothers and fan AU designs. A sign painter can carry a ruler, ink and a route map instead of a weapon. Let the skeleton have a calm mouth and a practical posture rather than a fixed grin.
new silhouettefresh outfitown daily job
Human SOUL
The six named colors are light blue Patience, orange Bravery, blue Integrity, purple Perseverance, green Kindness and yellow Justice. Red appears too, but the game does not name a red trait. Use a color as story flavor, not as a fixed personality rule.
six named traitsred unknownstory flavor
ACT and MERCY
In encounters, ACT offers choices beyond fighting, and MERCY lets a player spare a monster when the encounter allows it. Give your OC a specific nonviolent interaction, such as returning a dropped map or sharing a light.
specific actionkind responsechoice matters
Names and ACTs
Undertale OC names and ACT ideas
Mix a new name, then choose the moment a traveler would remember. The name and Signature ACT buttons fill the generator above.
Undertale name mixer
soft sound + object word
ACT ideas
Choose a small action that could change an encounter.
Guide
How to make an Undertale OC
To create an Undertale character, start with one shape, one place and one ACT. These five decisions work for a monster or a human visitor.
- 1
Choose monster or human
Make an Undertale character by deciding how it lives in the Underground. A monster needs a shape and daily routine; a human visitor needs a reason to listen to the people met along the way. Write one sentence about where they spend a normal afternoon. That ordinary detail will guide the clothes, the background and the first ACT a player might try.
- 2
Give the sprite one strong shape
Pixel art rewards a silhouette readable from far away. Use wings, a pebble outline, a raincoat or a distinctive coat hem. Keep the palette small. Cover the drawing with a solid color and check whether the shape still identifies the character. If two OCs become the same blob, change their proportions before adding tiny jewelry or more colors.
- 3
Pick an Underground home
The Ruins, Snowdin, Waterfall, Hotland and New Home each suggest different weather, light and work. Put your OC somewhere a traveler could meet them. A Snowdin guide needs boots and a route through snow; a Waterfall lantern keeper needs a glow that survives damp caves. Tie the location to one practical clothing choice and one encounter action.
- 4
Use SOUL colors carefully
For a human, choose one of the seven colors. The six named traits come from the Ball Game; avoid calling red Determination a confirmed canon trait. A color can suggest a question rather than dictate behavior. A patient person may still rush once in a while, and a brave one may need help. Leave room for choices that complicate the first impression.
- 5
Write an ACT and MERCY moment
A good Undertale monster OC has a response to kindness. Write one action the player could take, and how the character changes when spared. Keep the action concrete: straighten a sign, share an umbrella or wait for someone to finish a story. Then write a short reaction that reveals a new side of the character without needing a long backstory paragraph.
FAQ
Undertale OC creator FAQ
Signing up gives bonus credits for one free image, subject to availability; the free preview carries an occreator.org watermark. A purchase makes the remaining bonus credits available. No card is needed to sign up.
Yes. A sans oc maker or sans oc creator search often means an original skeleton monster in the Undertale style. Choose Skeleton, then change the skull shape, clothes, job and expression. This page does not draw Sans himself. Avoid his blue hoodie, slippers and fixed grin, Papyrus’s red scarf, and familiar fan AU skeleton looks.
It helps make an original skeleton OC, not Sans. Use the Skeleton tile for a new monster with its own name and story. The example wears an ochre work coat and square spectacles.
Choose a monster kind or describe a human in Extra details, pick a place in the Underground, add a name and Signature ACT, then choose the pixel home style and draw. You can also use an idea card as a starting point.
Yes. This Undertale character creator uses your field choices and Extra details to draw a new image. An Undertale character maker game or Undertale OC maker Picrew usually assembles pre-drawn parts instead.
Light blue is Patience, orange is Bravery, blue is Integrity, purple is Perseverance, green is Kindness and yellow is Justice. Red has no named trait in the game. Those names appear through the Snowdin Ball Game.
Yes. Describe a human in Extra details and choose a SOUL color. The monster picture tiles are optional, so you can leave Character kind empty.
Pick the Ruins, Snowdin, Waterfall, Hotland or New Home in Background. Plain makes a clean profile image. An original place within one region also works in Extra details.
ACT gives a specific interaction during an encounter, while MERCY can spare a monster. Write an action that reveals personality, such as offering shelter or listening to a story.
Yes. Choose a readable pixel silhouette and Plain background for an avatar. Keep the design original so it does not look like a canon character.
This Undertale OC creator game-style page has character choices and an art generator, while an Undertale OC creator chart is usually a worksheet. You can save your result or copy the concept to a sheet.
Yes, if it is your own idea or you have permission. An Undertale OC creator DeviantArt post may show someone else’s character, so write your own name, look and ACT before drawing.
Yes. Choose Ref sheet in Output for multiple views. Keep the same name, kind and color choices when comparing it with a portrait.
You can share your original OC with fandom friends. Undertale belongs to Toby Fox; check current fan content guidance before selling work tied to the game.
Your next OC is one sentence away
Sign up for 10 bonus credits and make your first OC free.