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Moi Rai Games

German independent video game developer behind the monster-taming titles Aethermancer and Monster Sanctuary.

Last updated September 27, 2026

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Overview

Moi Rai Games is a German independent video game developer. The studio is best known for working in the monster-taming genre, blending creature collection and party-building with other gameplay styles. Its official website presents two flagship projects: Aethermancer, a monster-taming roguelite in which the player takes the role of the Aethermancer and bonds with mythical creatures in the ever-changing Fractured Ruins of Terastae, and Monster Sanctuary, a monster-taming Metroidvania in which players collect, train and battle monsters in a side-scrolling pixel world. Aethermancer is described on the studio's site as a turn-based experience: players fight ferocious monsters and divine bosses, adapt their strategy to each combat, consider synergies, and plan the actions of a party of three monsters while using the four elements of Aether. The game is presented as "coming soon" with a Steam wishlist call to action. Monster Sanctuary, by contrast, is already available for purchase on Nintendo Switch and Steam, and is positioned as a side-scrolling pixel-art adventure that combines creature collection with exploration. The company operates as an independent developer rather than a large publisher, and its public presence centers on its own website and storefront pages for its games. Wikidata classifies Moi Rai Games simply as a "video game developer." The studio's identity is therefore tied closely to the monster-taming niche and to the two titles featured on its homepage.

History

Moi Rai Games is a German independent video game developer. Public information about the studio is limited, and Wikidata classifies it simply as a "video game developer." The company's own website serves as the main source for its activities, presenting its games and their core features. The studio's best-known title is Monster Sanctuary, a monster-taming Metroidvania in which players collect, train and battle monsters in a side-scrolling pixel world. The game is available for purchase on Nintendo Switch and Steam, according to the studio's homepage. Monster Sanctuary established Moi Rai Games' reputation in the monster-taming genre by combining creature collection and party building with exploration-driven, side-scrolling action. The studio's next project, Aethermancer, is presented on the same website as a monster-taming roguelite. In Aethermancer, the player becomes the Aethermancer and fights alongside mythical creatures through the ever-changing Fractured Ruins. The game is set in the expanse of Terastae, where mythical creatures are trapped in a cycle of death and rebirth; the player bonds with them and guides a party of three monsters to escape their fate. Combat is turn-based, with players facing ferocious monsters and divine bosses, adapting strategy to each encounter, considering synergies, and planning the actions of their monsters while utilizing the four elements of Aether. The homepage lists Aethermancer as "coming soon" and invites players to wishlist it on Steam. Beyond these two titles, the supplied evidence does not provide dated milestones, founding details, ownership information, or executive names. The studio's history is therefore best understood through its released and announced games rather than through corporate events.

Products and positioning

Independent developer specializing in monster-taming games that mix creature collection with roguelite and Metroidvania mechanics.

  • Aethermancer

    A monster-taming roguelite in which the player becomes the Aethermancer and fights alongside mythical creatures through the ever-changing Fractured Ruins of Terastae. Features turn-based combat, party management of three monsters, synergies, and the four elements of Aether. Listed as coming soon with a Steam wishlist call to action.

  • Monster Sanctuary

    A monster-taming Metroidvania in which players collect, train and battle monsters in a side-scrolling pixel world. Available for purchase on Nintendo Switch and Steam.

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