Mythbound: Prophesies of the Nether Realm

New Set Launches April 24!

Mythbound is coming to Once Upon a Galaxy! Garner Boons of the Gods, complete Prophecies and re-write myths in April 2026.

Fanned-out Mythbound cards, with question-marks in their text boxes: Thanatos (captain card), Bubbles (common character), Skeleton Key (common treasure), Boon of Nemesis (treasure with an altered frame…)
Cant wait to see what these cards do? Keep an eye on Mythbound's spoiler season throughout the next few weeks!

Fantastical New Mechanics

Mythbound features fantastic new mechanics like Prophecy and Boons! More articles detailing these mechanics are coming shortly.

Hermes dashes through the air with lighting radiating from his feet. I pet turtle in goggles clings to Hermes' head.

Release Schedule

Spoiler Season Begins - March 30

The official spoiler season for Mythbound begins on March 30th. Tune in to your favorite content creators and keep an eye out for Mythbound spoilers! You can also track along all the spoilers in the Community Discord or via the spoiler page on the website.

Note: If you are a content creator and would like to take part in the Mythbound spoiler season, please reach out to our Marketing Manager (zack@milliondreamsgames.com).

Preorder Bundles - Early April

Mythbound preorders will go on sale in Early April. They will include:

A jolly giant laughs as it steps out of a mysterious magical cube.

Release - Late April

Mythbound will be released in full in the final weeks of April.


More details about the preorders and full release are coming, so stay tuned to where you get your Galaxy news!


Card Acquisition

Captains unlock cards from the set they were released in first, until they complete their collection of that set.

Afterwards, they unlock cards from other sets at random.

Additionally, we are planning some additional card acquisition paths to help folks who desire to unlock everything for specific Captains quickly. More details on that to come at a later date…

A deck box, designed with a stained-glass yellow moon and star.

Theme Decks

Mythbound theme decks will be added at release for each previously existing Captain, where it can immediately unlock Mythbound cards.


Deep within the fabric of the galaxy, forgotten souls drift and ancient powers stir, Hades has issued a summons. From shadowed crypts, cursed kingdoms, and long-abandoned pantheons, the gods of the Nether Realms converge. One by one, they gather in silent anticipation, bound by a purpose that even they do not yet know.

Hades with horns and angelic wings glares meanacingly over a tranquil world. Other gods of the nether realm congregate at its base.

Prophecies once etched in obsidian tablets now burn with new meaning. Rivers run colder. Flames burn hotter. Even the stars seem restless. Whatever Hades is planning, it is not merely a meeting of the gods. It is a collecting of power… but to what ends?

The question is not whether the prophecy will unfold.
Only whether you will be ready when it does.


Baron Bok

To celebrate the announcement of Mythbound, here is the first full spoiler for the set! Meet Baron Bok:

Baron Bok is a rare 3/3 mage with Farewell - summon a random animal from your starting deck.

This mischievous new mage harnesses the powers of the Nether Realm to summon Animals straight from your starting deck!

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