Matheus Graef
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omiosures.bsky.social
Matheus Graef
@omiosures.bsky.social
6.4K followers 460 following 870 posts
🇧🇷 Illustrator & Concept Artist @ Wizards of the Coast, MCDM Productions, Ghostfire Gaming, CaptureAge, Conceptopolis

Contact: [email protected]

http://www.matheusgraef.com/
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omiosures.bsky.social
OMIOS URES update: just finished all artwork for the RITES OF MAGIC chapter! behold the final result. aesthetically this is probably my favorite chapter in the book!

#ttrpg #omiosures
February 15, 2026 at 11:13 PM
omiosures.bsky.social
the little homunculus has since become her crucial assistant
A sorceress and her homunculus fully invested into drawing a ritual circle. The sorceress scrawls a long circle, surrounding lines and runes she previously painted, while the homunculus has drawn a smiley face on his belly.
February 15, 2026 at 10:34 PM
omiosures.bsky.social
important
sketch of a hand petting a capybara's head text reads: Animal Bond Animal Husbandry 1 Through an Animal Husbandry roll, you attempt to befriend or tame up to one Small or Medium Beast. On a success, the creature becomes friendly to you and your party. By providing it with proper care, food and shelter, the creature becomes your permanent companion. You may give your companion basic commands, such as hold, patrol, attack or scout. Your companion has its own turn in combat. Special: If taken during Character Creation, you may choose to begin with a companion.
February 6, 2026 at 10:16 PM
omiosures.bsky.social
That's like the opposite of my superpower!
Two butts together. Left person's buttcheek has a birth mark that spells out "Tenac", while right person's buttcheek's birth mark spells out "ious D". Together: Tenacious D
February 6, 2026 at 6:52 PM
omiosures.bsky.social
Here it is with text, the spread in the book.

These are the first real pages of the book so they deserved something grandiose, mystic and transporting (and understated!)

This idea took a couple months of throwing ideas at the wall, none of which seemed to stick until now. Quite happy with this.
A bottomless chasm, miles wide, takes up more than two thirds of the image. The distant horizon harbors a silent city. The sky a dark blue, it is moments before dawn. We stand on the precipice, observing a single lit candle, burning a green flame. A humble prayer to the Buried God. Text reads: "In the barren unearthed tongues, older than all, two words often appear: that of “the world” and that of the “buried god”. All too often, however, they seem to refer to the same thing. Omios Ures"
February 2, 2026 at 5:20 PM
omiosures.bsky.social
Offering to the Buried God
A bottomless chasm, miles wide, takes up more than two thirds of the image. The distant horizon harbors a silent city. The sky a dark blue, it is moments before dawn. We stand on the precipice, observing a single lit candle, burning a green flame. A humble prayer to the Buried God.
February 2, 2026 at 5:16 PM
omiosures.bsky.social
Willing Subject
A dark room, lit by a single shaft of light from above. A man laying flat on a stone floor, next to him is a sorceress on her knees, dagger up in the air, an instant before she plummets the blade into his chest. The man stares at the viewer with a content expression. Next to the man's hand is a tipped over goblet.
January 27, 2026 at 11:30 PM
omiosures.bsky.social
The cowpybara dressing was absolutely inspired by asian yaks. The human gear was based off of a design I made previously which took inspiration from indian armor meets gambeson, but I suppose it could have been mentally informed by mongolian designs too!
picture of indian armor, some type of brigandine? leather/cloth jacket reinforced with small steel plates riveted to the inside, creating decorative nail heads on the outside Freelander Gambeson (a padded armor with a winter-styled hat, vaguely cone-like with fur lining) Xumaican Brigandine: fully horizontal, imponent pauldrons that taper down to a curve. boiled leather sleeveless overcoat lined with various interlinked metal plates. features a cylindrical helmet (covers the forehead completely) with leather drapings lined with interlinked metal plates. helmet has a point. Trinitari Lamellar: heavy armor made of interlinked plates forming various rows: these rows overlap in a vaguely insect-like look. features an insectoid helmet, a large circular torso plate and a coif with two holes for the eyes
January 13, 2026 at 11:17 PM
omiosures.bsky.social
cowpybara
concept art showing a cowpybara: a cow sized, extra furry capybara. the image shows two cowpybaras: one dressed & one undressed. the dressed cowpybara stands next to a man, likely its tutor or conductor. the man is outright delighted to be standing next to the cowpybara.
January 13, 2026 at 10:52 PM
omiosures.bsky.social
Hey #PortfolioDay!

I'm Matheus from Brazil 🇧🇷. I've worked on Magic: The Gathering, D&D, Draw Steel, Age of Mythology: Retold and a buncha other games.

Currently working on my own weird fantasy RPG (first two images of this post!)

My website: www.matheusgraef.com

Contact: [email protected]
A sorceress astounded by her freshly sculpted homunculus. A single shaft of light illuminates her creation. Bounce lighting reflects upon the sorceress. The homunculus has a flaccid butt. The maker's hands are covered in fresh clay. They are the only body parts of the sorceress that are directly lit. Faint, residual purple smoke wisps from her fingertips: the homunculus stands in an awkward pose, that of a creature freshly adjusting to its body. The homunculus has thin limbs and a hefty torso, though it is faced against the viewer. The sorceress's workshop is littered in sculpting tools, brushes, an open tome of transmutation, ceramic bowls and a pitcher of dirty clay water in which lie a few of these tools. Clay shavings are scattered about the floor. A red, runic circle surrounds the humonculus. In the dark background it is possible to catch a few failed prototypes on a shelf. A sorceress astounded by her freshly sculpted homunculus. A single shaft of light illuminates her creation. Bounce lighting reflects upon the sorceress. The homunculus has a flaccid butt. The maker's hands are covered in fresh clay. They are the only body parts of the sorceress that are directly lit. Faint, residual purple smoke wisps from her fingertips: the homunculus stands in an awkward pose, that of a creature freshly adjusting to its body. The homunculus has thin limbs and a hefty torso, though it is faced against the viewer. The sorceress's workshop is littered in sculpting tools, brushes, an open tome of transmutation, ceramic bowls and a pitcher of dirty clay water in which lie a few of these tools. Clay shavings are scattered about the floor. A red, runic circle surrounds the humonculus. In the dark background it is possible to catch a few failed prototypes on a shelf. A giant cyclops. Slender, female. Her armor is golden bronze, made of large plates with shield-sized domes protusions, which help veer off attacks. She wears a golden diadem, golden earrings, and her single eye is bright blue. Her armor shines from the warm light that trickles into the large chamber, pouring in from an off-scene oculus. Her face partially in the dark, tall that she is, only illuminated partially by the bounce lighting of her armor. Her right arm adjusts her belt, while her left arm is lifted, underneath it; we see a shirtless servant on top of a tall staircase, tying the laces of her bracer. The staircase is built of beige stone. The bracer is almost the size of this person. By the cyclops' feet, we see two other servants donning her greaves. One of them holds the giant slab of bronze in place, while the other, behind the cyclops' calf, ties up the laces. The floor is a white marble tile, giving the entire scene a slight reflection. Did you know a single greave of this Cyclops weighs around 150 kilos? Behind the Princes Warrior, we see a 2 story tall greataxe. It is brightly illuminated by the single shaft of light that brightens the entire room. In fact, the entire scene is illuminated either by the natural light, or the bounce lighting of the cyclops' armor, giving the entire painting a warm look. A night-time, rainy alleyway: stealthy obscura spies clad in overcoats and leather, using blue magic to stick to walls, stalk a rival mobster below. Two Carverine (orc-like humanoids), a male and a female, ride alongside eachother, on top of war hippos. They hold each other's arms. With the other hand, the female orc displays a freshly decapitated head - the enemy king. While the male lifts his axe up in prideful show. Both orcs have red hair and pinkish-gray skin, similar to the hippos they ride upon. The carverine have long, elephant like tusks, and wear minimal bronze armor.
January 13, 2026 at 3:50 PM
omiosures.bsky.social
Heavily inspired by Morrowind, Planescape and 70's Star Wars with a dash of bronze age and art nouveau. The mood? Conan after Conan: all the heroes are dead and this is the world they built.

That's OMIOS URES, my weird fantasy RPG. And it's FREE on itch.io!

matheusgraef.itch.io/omios-ures
A black robed wizard, embroided with stars, stands on top of a stone peak. Behind him, the vastness of the world. The early morning creeps amidst the ravines, painting the world in coy lilacs and deep purples. A city of horned spires jolts from the stony wastes, illuminated in bright cosmopolitan oranges. An alien zeppelin flares out its floodlights at the rooftops and beyond. The wizard stares at the viewer, though we do not see within his cloak and hood. Blackness. From the void creeps out two marble-white hands, old as time, covered in rings, gesturing in unknown signs. OMIOS URES Two Carverine (orc-like humanoids), a male and a female, ride alongside eachother, on top of war hippos. They hold each other's arms. With the other hand, the female orc displays a freshly decapitated head - the enemy king. While the male lifts his axe up in prideful show. Both orcs have red hair and pinkish-gray skin, similar to the hippos they ride upon. The carverine have long, elephant like tusks, and wear minimal bronze armor. Two Carverine (orc-like humanoids), a male and a female, ride alongside eachother, on top of war hippos. They hold each other's arms. With the other hand, the female orc displays a freshly decapitated head - the enemy king. While the male lifts his axe up in prideful show. Both orcs have red hair and pinkish-gray skin, similar to the hippos they ride upon. The carverine have long, elephant like tusks, and wear minimal bronze armor. a drawing of a gnome in a wizardly outfit, holding a lit candle - the gnome is half colored, half sketched. The gnome has blue nails, pointy shoes and an art nouveau walking stick. above him is in the text "GNOMOS" in an orange, art nouveau font. a drawing of a gnome in a wizardly outfit, holding a lit candle - the gnome is half colored, half sketched. The gnome has blue nails, pointy shoes and an art nouveau walking stick. above him is in the text "GNOMOS" in an orange, art nouveau font. A giant cyclops. Slender, female. Her armor is golden bronze, made of large plates with shield-sized domes protusions, which help veer off attacks. She wears a golden diadem, golden earrings, and her single eye is bright blue. Her armor shines from the warm light that trickles into the large chamber, pouring in from an off-scene oculus. Her face partially in the dark, tall that she is, only illuminated partially by the bounce lighting of her armor. Her right arm adjusts her belt, while her left arm is lifted, underneath it; we see a shirtless servant on top of a tall staircase, tying the laces of her bracer. The staircase is built of beige stone. The bracer is almost the size of this person. By the cyclops' feet, we see two other servants donning her greaves. One of them holds the giant slab of bronze in place, while the other, behind the cyclops' calf, ties up the laces. The floor is a white marble tile, giving the entire scene a slight reflection. Did you know a single greave of this Cyclops weighs around 150 kilos? Behind the Princes Warrior, we see a 2 story tall greataxe. It is brightly illuminated by the single shaft of light that brightens the entire room. In fact, the entire scene is illuminated either by the natural light, or the bounce lighting of the cyclops' armor, giving the entire painting a warm look. The chamber is large and tall, made of stone, to accomodate the Princess Warrior. A small brazier burns incense, permeating the room with a pleasant odor of cloves. Behind the Cyclops and her servants, three noble folk overlook her befitting from a balcony. The balcony sits at the height of the Cyclops' head. One woman smokes, the man in the middle lifts a goblet with a grin, and the leftmost woman looks simply bored. There's a glass pitcher hewn with gold half-filled with wine next to them.
January 12, 2026 at 9:24 PM
omiosures.bsky.social
this was fun to make
2 page spread of a TTRPG book. features a sorceress dressed in black robes, golden jewelry, drips a drop of poison from a flask, onto her cauldron. her cauldron glows green, illuminating her from beneath. Her cauldron and jewelry are dirty-golden, like old brass, with sleek, stylized & organic forms and curves.
January 12, 2026 at 7:28 PM
omiosures.bsky.social
eldritch princess

#gamedev #extraplanar
a screenshot of a zbrush model: an eldritch abomination, biomechanical space squid
January 9, 2026 at 6:43 PM
omiosures.bsky.social
started to work on the squid for my cosmic horror game today to see if it was fun to dodge/escape from a monster in a directional gravity environment. kind of make it or break it moment.

turns out that yes, it is!! even in its most rudimentary implementation it's surprisingly fun!

#gamedev
January 9, 2026 at 2:05 PM
omiosures.bsky.social
kicking 2026 off with some work on my cosmic horror game EXTRAPLANAR

#gamedev #extraplanar
screenshot of a work in progress, low poly, dimly lit sci fi mess hall
January 1, 2026 at 3:16 PM
omiosures.bsky.social
Artista e arte
photo of me. cooking in an unlit kitchen during sunset. sun pours in directly onto me and bounce lighting illuminates the rest of the kitchen. white man, smiling, squinting due to the sun. A sorceress astounded by her freshly sculpted homunculus. A single shaft of light illuminates her creation. Bounce lighting reflects upon the sorceress. The homunculus has a flaccid butt. The maker's hands are covered in fresh clay. They are the only body parts of the sorceress that are directly lit. Faint, residual purple smoke wisps from her fingertips: the homunculus stands in an awkward pose, that of a creature freshly adjusting to its body. The homunculus has thin limbs and a hefty torso, though it is faced against the viewer. The sorceress's workshop is littered in sculpting tools, brushes, an open tome of transmutation, ceramic bowls and a pitcher of dirty clay water in which lie a few of these tools. Clay shavings are scattered about the floor. A red, runic circle surrounds the humonculus. In the dark background it is possible to catch a few failed prototypes on a shelf.
December 26, 2025 at 3:27 PM
omiosures.bsky.social
choose your armor
Freelander Gambeson (a padded armor with a winter-styled hat, vaguely cone-like with fur lining) Xumaican Brigandine: fully horizontal, imponent pauldrons that taper down to a curve. boiled leather sleeveless overcoat lined with various interlinked metal plates. features a cylindrical helmet (covers the forehead completely) with leather drapings lined with interlinked metal plates. helmet has a point. Trinitari Lamellar: heavy armor made of interlinked plates forming various rows: these rows overlap in a vaguely insect-like look. features an insectoid helmet, a large circular torso plate and a coif with two holes for the eyes
December 17, 2025 at 10:06 PM
omiosures.bsky.social
In the midst of all the AI vomitodramum, here's a two page spread I made for my #ttrpg book which I'm particularly proud of. :')

Text, art and layout by yours truly; never have used, never shall use genAI.
a two page spread of OMIOS URES - my tabletop RPG. on the left, a drawing of a gnome in a wizardly outfit, holding a lit candle - the gnome is half colored, half sketched. The gnome has blue nails, pointy shoes and an art nouveau walking stick. above him is in the text "GNOMOS" in an orange, art nouveau font. to the right bottom corner is the gnome from the OP here. the text on the page reads: Athousand years ago, a flying citadel soared over the continents, peering curiously at the ancient realms below. The city was a perfect utopia, home of no evil nor ill; the motherland of all gnomes. Great knowledge was bestowed upon what cultures dotted the land, but it did not take long until the surfacers found better use for their magical gifts. Appalled by all the violence and death following their patronage, the Citadel signaled all of those still aground to return at once. But not all gnomes heeded the call – and ever since its departure, the Motherland’s whereabouts remain a mystery. Old Spirit Gnomes are tiny humanoids, always elderly in appearance because all living gnomes are well over a hundred years old. Men usually sport facial hair; mustaches or full beards; oftentimes kept as long as their own bodies. A Ward for Delirium While their utopic homeland was exempt of malady, years of exposure to the earthen realms saw countless Gnomes slowly and inevitably succumbing to a disease once thought extinct – Goblinism – mutating into pustulent, rabid and ungovernable versions of themselves. In order to prevent the “turn”, Gnomes have since developed runic headwear; warding talismans that keep the disease at bay indefinitely, as long as the hat is worn by its owner. (...) All must contain a lengthy sequence of runes within their liner, often resulting in a hat as tall as its wearer.
December 16, 2025 at 10:07 PM
omiosures.bsky.social
Omios Ures wip

I'm having a lot of fun sketching these down. I always pictured the arsenal page spread almost as if the weapons are hanging from a weapon rack. I think seeing all the weapons laid out eases the reader into browsing through these big tables.
two page spread from omios ures, featuring tables of weapon types & stats and a bunch of weapons sketched out in black and white.
December 13, 2025 at 11:41 PM
omiosures.bsky.social
pourin' a cold one
an androgynous half-cyclops pouring a lizard patron some thick syrup-y liquor. the lizard wears a cool, organic-shaped outfit, like a mixture of bronze age and retro sci fi. the lizard stands bipedal, awaits eagerly for its drink
December 8, 2025 at 10:32 PM
omiosures.bsky.social
Closeup:
December 5, 2025 at 7:04 PM
omiosures.bsky.social
"Outfitting of the Princess Warrior"

I'm really happy that folks here enjoyed the homunculus painting! Here's my cyclops painting which also sprouted from the same weird mind garden, it's still a personal favorite of mine.
A giant cyclops. Slender, female. Her armor is golden bronze, made of large plates with shield-sized domes protusions, which help veer off attacks. She wears a golden diadem, golden earrings, and her single eye is bright blue. Her armor shines from the warm light that trickles into the large chamber, pouring in from an off-scene oculus. Her face partially in the dark, tall that she is, only illuminated partially by the bounce lighting of her armor. Her right arm adjusts her belt, while her left arm is lifted, underneath it; we see a shirtless servant on top of a tall staircase, tying the laces of her bracer. The staircase is built of beige stone. The bracer is almost the size of this person. By the cyclops' feet, we see two other servants donning her greaves. One of them holds the giant slab of bronze in place, while the other, behind the cyclops' calf, ties up the laces. The floor is a white marble tile, giving the entire scene a slight reflection. Did you know a single greave of this Cyclops weighs around 150 kilos? Behind the Princes Warrior, we see a 2 story tall greataxe. It is brightly illuminated by the single shaft of light that brightens the entire room. In fact, the entire scene is illuminated either by the natural light, or the bounce lighting of the cyclops' armor, giving the entire painting a warm look. The chamber is large and tall, made of stone, to accomodate the Princess Warrior. A small brazier burns incense, permeating the room with a pleasant odor of cloves. Behind the Cyclops and her servants, three noble folk overlook her befitting from a balcony. The balcony sits at the height of the Cyclops' head. One woman smokes, the man in the middle lifts a goblet with a grin, and the leftmost woman looks simply bored. There's a glass pitcher hewn with gold half-filled with wine next to them. In the background, if we pay attention, a strange robed man, perhaps a sorcerer, watches the scene with an eerie expression; mouth and eyes wide open, scowling.
December 5, 2025 at 7:03 PM
omiosures.bsky.social
Process:
December 4, 2025 at 8:38 PM
omiosures.bsky.social
Details:
A close-up of the sorceress. A close-up of the humonculus. His butt is flaccid.
December 4, 2025 at 8:38 PM
omiosures.bsky.social
"Birth of the Homunculus"

A sorceress astounded by her creation.

This painting has been floating around in my head for months now, and I only found the right time to bring it to fruition yesterday!

(see thread for details + process shot-by-shot)
A sorceress astounded by her freshly sculpted homunculus. A single shaft of light illuminates her creation. Bounce lighting reflects upon the sorceress. The homunculus has a flaccid butt. The maker's hands are covered in fresh clay. They are the only body parts of the sorceress that are directly lit. Faint, residual purple smoke wisps from her fingertips: the homunculus stands in an awkward pose, that of a creature freshly adjusting to its body. The homunculus has thin limbs and a hefty torso, though it is faced against the viewer. The sorceress's workshop is littered in sculpting tools, brushes, an open tome of transmutation, ceramic bowls and a pitcher of dirty clay water in which lie a few of these tools. Clay shavings are scattered about the floor. A red, runic circle surrounds the humonculus. In the dark background it is possible to catch a few failed prototypes on a shelf.
December 4, 2025 at 8:38 PM