- Unscented
- Undertale Green
- Ultio
- UNFATED
- Under Layers
- USS Undertaking
- Unsettled
- UA Faculty
- Undertale | His hope
- Utopia
- Unicorn: The Last
- Undateable ME
- Under Cotton Candy Skies
- Unknown
- Unlikely Valentine
- Under the Shadow of the White Wisteria
- unfamiliar hours
- Ushiten: - pretty awkward - Tendou's love ways
- Under CTRL
- Until Observed
- Uneventful
- Upside Down Gangster
- Universe of Marcus
- Unguarded: A Dragon Ball Z Fancomic
- UNWANTED
- Useless Ability
- Utterly Weird
- Upper Limit
- Unconditional Fate
- Ugly Dog
- University of Speed
- UnderneathComic
- Ugly Girl
- UNDER THE SKIN
- Unforgettable (BL)
- Unsaid Words
- Unbearable
- Untitled.
- Updates From Hell
- Undesired Flower
- Utopia la Fin
- uwu ghost
- Unseen Memes
- Unrequited Love
- Undead Reunion
- Unleashed [Omegaverse]
- Underverse - XTale
- unOrdinary : Another Place (Fan-made)
- Unholy
- UNUSUAL LOVE
- UNDERGRAD
- Universal
- Underfell (An Undertale Alternate Universe)
- Unrelatable Comix
- Umbrella Mage
- up is down
- Unfortunate crush (GL)
- Umbrella Boy
- Unmade
- Under the Bed
- UNFORESEEN (BL)
- Urfspace
- Unlock Deceit
- Used To Be Summer (H)
- Underverse - The Truce
- Un-Phased
- Under the Wave
- UPHEAVAL
- Unleash the Beast
- Unconsciously Funny
- Unfamiliar Familiars
- Underworld Hysteria
- Unattached
- Unearth
- Unique Family
- Unluckiest People
- UMBRAL
- Undine Adventurer
- Ups And Down
- Ugly Duckling thoughts
- Underworld
- Undead Roommate
- Unsung Reverie: Tempest
- Us and The Universe
- Unspecial
- Un depressed Artist
- Urban Rivals
- Undertale: To One's Perspective To Another
- Unbroken Memories(BL)
- URSO PERA COMICS
- UnderTrust♡ (An Undertale AU)
- underwater sun
- Unreal
- Unforghivable Night
- Unearthing Hope
- Unholy Sh!t
- Unfamiliar Love
- Uncounted Unlisted Romance
- URBAN SURFER
- Urk the Turtle
- Upon the Summit [Call to Action]
- Un-Dead!
- Utopia Policy
- UnMasked
- Unstoppable Monkey Bunny
- Unusual Love
- Universal Love (hiatus)
- Undertale TNEN
- Undead Beast Hunt
- Under the same sky
- UN7OCKED (discontinued)
- Umi
- Undomesticated
- Um, Hey
- Until Vex Time
- Unique high school
- Unnatural Life
- Urban Legends
- Uncontrollable
- Unwanted Affections
- Urban Fear
- UGLY (B)
- Under-Dtales [Undertale AU]
- Us Against the World
- Undercurrent
- Umbrella girl (B)
- Unwanted love
- Unwanted (Comic by: Micheal is Gay AF)
- untitled spongeboob fanfic
- Unstab me, Death!
- Umbrella Under Rain
- UFO: Ulivin From Outerspace
- Urban Lamp
- Urban Samurai
- Unlimited Online
- Underground Football
- Until Next Time
- Under Wraps (GL)
- Unknown Horrors
- Under Neon Lights
- Unnatural Chronicles
- UNDERDOG
- Uni's fools
- Ukraine for dummies
- u̶n̶matched
- Urban Legend Memes
- Untouchable: My Hero Academia Stories
- UGLY
- Undercover Demons
- Uno: The Last Card
- Uggy's Wacky Quest
- Under uppertale (Undertale)
- Unfinished Old Story (BL)
- Unorigina: Boy to Hero
- Unfortunate reincarnation
- Urban Demons EXTRA
- UNSPOKEN RULES (AN MCYT COMIC ADAPTATION)
- Unknown Horizons
- Underswap Intertwining Parallels (Undertale AU)
- Unconquered
- Until the End
- Until I Say Yes
- Under Anger (UNDERTALE AU)
- Unhinged: A Divine Comedy
- Useless Children
- Until We Meet Again (B)
- UNFORSEEABLE
- Unofficial Adventure Quest Worlds Shorts
- Until I Met You (B)
- UltraBoi & Lil' Mag'
- Unoriginal Fantasy
- Unmasked
- UNDERFELL
- Unscripted
- Us Against The World
- Under the Moonlight
- Unknown Gender
- Unlovable (H)
- UrsaTale
- Unrest at the Art Studio
- Uncanny Meadow
- Unbelievably Undead!
- Uncle Cool
- UnderTale : Where I Should Have Been
- Urban Demonz
- Undertale Au comics
- Unstoppable Heart
- Umberly Hill Murders (B)
- UNDERTALE: FORGET ABOUT ME
- UnderEstimated
- Until I Met You
- Uncle Mermaid
- Ultimate GAY high school adventure
- Unfortunately Fortunate
- Underworld Cafe
- uwu
- Unicorn Feather
- UnEarthed: A Demon's Tale
- Untitled comic || tags: [vampires] [GL]
- Uncommon Grounds
- Unfamiliar Familiar
- ULTiMATE FIGHTER
- uwu AND owo
- Upshot
- Unofficial Eddsworld Comics
- uniforms (gl)
- Untainted Fangs
- unknown places
- Ultio 0
- Unlucky Emerald
- Unknown Conscious Entity
- Uncelestials
- UNRAVEL
- Unstable Comics
- Unmatched!
- Ugly Swan (H)
- Unspoken love (BL)
- Un-Haunted (H)
- Unbound
- Up to 93% Deserve Happiness
- Untempered Chain
- Undertale Torn-Apart.
- Underwater Peony
- UndeadEd
- Ugly Girl's Harem - Call to Action
- Unfortunate 1's
- Unfathomable (2019)
- Underestimated (Steven Universe Au)
- unhealthy
- Unknown Tomorrow
- Undercover geek
- Unlikely Heroes
- Underlord
- Unison Cross(Old Version)
- Under Roof
- undErBOY
- Unsainted
- Underside Clinic
- UwU and OwO Cat
- Uncivil Scribbles
- Ur mom
- Underagents (Español)
- Under the Blood Moon
- Urban Legends... The Clown Statue
- Under Lab
- Under The Stage
- Under The Cover
- Underground Pizza Delivery
- uncertainty
- Unsolved Shapes
- Unpredictable Life
- Usagi Moon
- Underland
- UnderFall
- Uncomfortably Comfortable
- Undos and Drunken Kisses (BL)
- Ursa Major
- Usually Underrated
- Unfortunate events
- unironically autistic
- Undoing the Fairytale
- Underachiever
- Until We Meet Again
- Unprecedented
- Umbra
- Understatement
- Umi's adventures
- Unapologetically Anchelantchi Bis
- Unfavorable Love
- Uni Dog's How To!
- Unlocked (old)
- Unicorn Island
- Undertale 悪い時のトリオ
- ugly neko café
- Unable to die
- Urban Witchery
- Uncanny Lane
- Upon a Hill (H)
- Unavailable
- Under the Cherry Blossoms
- Unknown Code
- Under Observation: My First Loves and I (Introduction)