My HeartShapedObject: An [Unofficial] Deltarune Dating Sim

NOTICE: We're happy to announce that we are launching an Expressions of Interest form! While we're not filling positions at the moment, we will consult the responses to this form if we need more members on the team! More info below!

Welcome to the MHSO website! Are you a local single tired of the dating scene? On the hunt for some companionship? Are you perhaps partial to eccentric televisions? Garbage puppets? CLOWNS?Well, you're in luck! Here at MHSO, we have THREE ELIGIBLE BACHELORS* ready to steal your very own [[HeartShapedObject]]! Or rather...you might have to steal theirs, first!What are you waiting for?! We're not getting any younger, folks!

P-Please...hello? Is anyone there? It's so dark in here...

About MHSO!

"My HeartShapedObject" is a visual novel dating simulator with point-and-click style mechanics! Try your hand at romancing select characters from Toby Fox's Deltarune. In this fangame, it's [YOUR] heart that's on the line!-Worm your way into the affections of three bachelors from the Dark World: Tenna, Spamton, and Jevil.
-Get lost in each character's gripping narrative, complete with multiple dialogue options, humorous exchanges, and accurate characterization as witnessed in Deltarune.
-Search and find objects to fulfill the bachelors' requests during point-and-click scenes!
-Receive in-game text messages from our bachelors as you play!
-Indulge in multiple routes! Some favorable, and others not-so-much...
-Run into the Fun Gang and other characters from Deltarune!
Our demo is slated to be released in Q1 2026. It will be available on PC and Mac systems!

Meet the Dev Team!


LEAD DEVELOPER

SALEM

Director, Producer, and Game Writer

they/them

Bio
Greetings! I love creating beautiful & horrific things. Currently, I'm a freelance visual developer, concept artist, and production professional. Resident Spamton fanatic since 2021.

Why do you enjoy Deltarune?
Oh boy!! Deltarune has seen me through my best and worst moments. I live for the dynamic between the characters, the theorizing, the little details that are otherwise missed...it's such a wonderful story.

Other Projects:
1. Noctifer: A dark fantasy/sci-fi series that follows the adventures of a witch, her familiar, and the presence underneath their porch.
2. Faewilds (working title): Historical horror comic set in the 17th century Scottish Highlands following the myth of the Elfin Knight.


SOCIAL MEDIA

EMI

Social Media Manager

they/them

Bio
Hi! I am a career academic who does research on the LGBTQ+ community and media. I am also a hobby artist who posts their art once in a blue moon.

Why do you enjoy Deltarune?
I have been a huge fan of Toby Fox since Undertale, and just like it's predecessor, Deltarune means alot to me. The people I have met in this community are fantastic, and I can rave about the different artistic aspects of the game all day (the art, the music, the narrative)!

Other Projects:
I don't have any public projects right now, but in my free time I'm working on a journal publication for a study that examined predictors of identification in a transgender and nonbinary sample!


PROGRAMMING

Bio
I'm doing my master's in animation, which is currently a very big part of my life. Other than that, I spend my time geeking about Ace Attorney, any toxic yaoi I can find, and Pikmin (yes, the lil fellas).

Why do you enjoy Deltarune?
I played chapter 1 when it first came out as an .exe file, but I only really started appreciating the game after Chapter 3 and 4 launched. Something about the world, the characters, the silliness, and especially the music really tickles my fancy. You can tell it's been made with love, that's what I like about it :))

Other Projects:
I Hope This Helps (mouthwashing) & Forget me not (Ace Attorney) on AO3


MUSICIANS

FEVER / MAJIN

Music Composer, SFX Producer

they/it/he

Bio
Just a voidspawn robot thing that likes to make art of all kinds, including music! OG UTDR fan, and biggest Tenna enjoyer out there.

Why do you enjoy Deltarune?
In general, Toby's works have been a huge point of inspiration for me. Deltarune in particular has a beautiful story, even better music, and an INCREDIBLY creative fanbase. I am amazed it's gotten to this point all the way from Undertale.

Other Projects:
-Untitled Rewrite Album + various other musical projects
-Breaking Point Audio Drama
-holding the multiverse together

FAUNA

Music Composer, SFX Producer

they/them

Bio
I love every kind of art and nature! My ultimate dream is to make Kei X Magic, and its full of cute and cool witches! I'm slowly healing my inner child with art, so I'm trying my best everyday!

Why do you enjoy Deltarune?
It has furries, magical themes, comedic while heartwarming moments and endearing one of a kind characters!

Other Projects:
Battat: MikeIsInnocent; Centered around the Mike Trio, they are now in a detective oneshot Visual Novel!
KeiXMagic; A game to set peace with my childhood. It has my curiosity towards the world, and my own heart in it.


VISUAL ARTISTS

LIV

Concept Artist, 2D Sprites & Props

she/they

Bio
Heya! My name is Liv, and I’m an animation generalist! I have a concentration in digital 2D, but have dabbled in and like working with all mediums! I seek to make animation my full time job and help bring my visions, my ideas for films, and the ideas of others to life!
Big magical girl enthusiast. LoZ occupies much of my headspace.

Why do you enjoy Deltarune?
Deltarune has this extremely resonant cast of characters and worldbuilding that captivates me. There’s something so homey and familiar about the small town setting and the outcasts that band together to go on adventures outside their world that’s compelling. The characters, the world, the general aesthetic .. I adore every bit of it.

Other Projects:
Two short films (currently unnamed), visdev for a grunge-inspired animated series!

BEES / MEAT SYSTEM

Social Media Artist, 2D Sprites & Props

any pronouns (mainly they/it)

Bio
Hemlo, I'm a black artist who thoroughly enjoys drawing and creating stories that make you ask "Bees, what's your problem"! Among all of my friends across different groups, they think I'm very annoying about Mr. Tenna (which is true).

Why do you enjoy Deltarune?
MAN. I could go on for a while about about why I love Deltarune, but I'll keep it brief. It has consistently reminded me that if I can push through my own hardships, then I can make the stories in my mind that I'm passionate about into reality. Even if it takes me years until it's fully complete, what matters is putting my heart into it and getting help when I need it.

Other Projects:
(all of the following are games under the same universe/project called OverSeen)
Nothing Happens on Fool St.: Dungeoneer game where you manage your daytime struggler life and overnight work determining rather realities near your own can be saved or should be destroyed with everyone in it to save your home
Islands of Bridgefall: Moral-based friendship game where you connect to many islands and explore the world deep in the sea
Shining, Come Back!: Shoot-em-up where you're a revived anxious mess of a magical girl
Where's Your Destiny?: You'll see in due time... It's my Deltarune one might say...

Bio
Hiya! I'm Cheru, the chaotic gremlin who's playing games on your computer when you're not looking. I make silly noises for fun and to make people smile. (aka voice acting) and I'm a full time artist by trade!

Why do you enjoy Deltarune?
I LOVE DELTARUNE SO MUCH!! It has been one of my all time favorite games for years now. I really enjoy just how well written ALL of the characters are, the pacing is chefs kiss, the gameplay is SUPER fun, the music is so delicious you could listen to it for ages and the art direction is iconic. Also I'm a huge fan of games that include mystery and lore. I enjoy theorizing just like Battat. Also I love Tenna.

Other Projects:
-Starportronpa: A game heavily influenced from the Danganronpa series that I'm working on (very slowly) with a group of close friends. Upupupupu

LEAKHENA

Background Artist

any pronouns

Bio
Salut! Hey there!! I'm an artist from Quebec, Canada, using my hyperfixation super abilities to good use currently with this game hahaha, with a particular interest in psychology, sociology and other nerdy subjects and a huge passion for video games, nature and plants, animals and science. I'm a pretty curious person who likes to analyse everything!

Why do you enjoy Deltarune?
Did I mention my love for over analysing things? Deltarune is one of those perfect in depth games with crazy lore and well rounded characters that allows my curious brain to have it's fill, i will dissect every characters, theories and lore out there to hell and back, and Deltarune is genuinely filled to the brim with meanings and love from its creator. The game is simply amazing and delivers with a level of depth I've not often seen

Other Projects:
-I am and remain mostly a hobbyist artist but one soul can hope and dream, and sometimes i dream of my own indie games with their own meanings, characters and lore... Who knows maybe in the future if I will actually try to make such dream a reality! For now though i am content and happy with enjoying the flow of life as it comes, by balancing all my different interests together

Bio
yo hey there!! just a random nerd from eastern europe who can’t function without a cup of coffee lol. i’m super into rpgs, indie & combo games, mythology, and i study japanese philology. also, massive cat person (i love dogs too but cats just own my heart). 😛

Why do you enjoy Deltarune?
been a huge undertale fan since my teen years, so there’s no way i was skipping this one. didn’t follow it much before ch3–4 dropped cuz i was deep in other fandoms, but since june i’ve been hooked. (ESPECIALLY ON TENNA OMG I NEED THAT TV HEAD GUY SO BAD😭😭)

Other Projects:
1. Designed the concept art for the characters in the fan animation project "GF Fan ep: Race Against Slime."

Bio
hiya! you may have seen me around... or not! i’m currently a freelance pixel artist for games, musicians, streamers and vtubers. i can do almost anything
internet funny fella and sometimes also a vtuber too

Why do you enjoy Deltarune?
i truly appreciate and love the game design and the carefully crafted player experience. it takes skill to make, not just the characters, but the entire world feel alive. If you think about it... just a little bit.. it also makes you feel more alive too. (or something like that)

Other Projects:
i have moved across the country very recently so im making a fresh start, creating my own physical merch and the beginnings of my own game going into 2026

JARA

CG Illustrator, Background Artist

they/it

Bio
Lover of the macabre, a sucker for pathetic fictional men and fulltime fujo.

Why do you enjoy Deltarune?
Toby Fox is an immaculate storyteller, understanding what makes for truly great narratives, touching the hearts of millions. It helps that he's also one of the funniest guys of all time.

Other Projects:
- Commercial Break: A Spamtenna Postcard Zine
- Tenna Zine

Frequently Asked Questions

What systems will MHSO be available on?
PC and Mac! We are also aiming to have this out on Linux.
What publishing platforms will MHSO be available on?
itch.io and GameJolt!
Will I have to pay to play the game?
Nope! As per Toby Fox's rules on fangames, we will not be monetizing My HeartShapedObject.
What is the age rating for MHSO?
The game will be T for Teen, meaning it is suitable for anyone aged 13 and up. It's the same rating as Deltarune!
Will there be suggestive or explicit content?
As MHSO is for teens and up, it will not have explicit content. According to this guide to ESRB Ratings...
Games under this rating "may contain violence, suggestive themes, crude humor, minimal blood, simulated gambling and/or infrequent use of strong language."Who is romanceable in MHSO?
Tenna, Spamton, and Jevil will be romanceable options in the full game.
Will other characters from Deltarune make an appearance?
Yes! They will fulfill varying roles in the narrative. A couple are featured in the demo!
Will you be adding more characters to romance?
We will revisit this question once the full game featuring Tenna, Spamton, and Jevil is released. We are essentially writing individual stories for all three, and it takes a lot not only for writing the narrative, but for programming, music, and artwork as well.
What will the demo contain?
The demo will include the introduction to the game, and the beginning of Tenna's story (yes, you will go on a date with him). Mechanics such as the point-and-click functions will be introduced, and the dialogue choices you make will affect the outcome.
When will the demo release?
We aim to release the demo in Q1 2026.
When will the full game release?
We're estimating that the full game will release in Q4 2026. We will have a more accurate estimation of our production timeline after the demo releases.
Will there be multiple routes/endings in the full game?
Yes! You will either be able to romance or befriend the characters, and these are equally good routes. We can't speak about the other routes, though. Someone might be listening.
What kind of game mechanics are in MHSO?
The game is primarily a visual novel, meaning that it's text-based storytelling and focused on narrative and character development. There are point-and-click mechanics, where you might have to click around from scene to scene to find items, and there is also a text messaging mechanic.
What is the "text messaging" mechanic?
In the demo, you will be given an introduction to the Phone, a useful tool that will let you text with the bachelors, keep track of their "moods," view their dating profiles, and more! We aim to fully flesh this out in the full game.

Contact Us!

For any questions regarding game development or collaborations! Fill out the form and we'll reply as soon as we're able.