[2] Guerilla named UK-based Studio Gobo as a co-development partner in January 2023 to expand the Horizon universe.

[3] It was previously rumored that the studio was working on a remake of Horizon Zero Dawn, which turned out to be false because the 2024 remaster was actually developed by Nixxes Software and Guerilla.

[6][7] The Lego Group felt that Horizon was a good choice for a video game project due to its vibrant visuals.

[9] Lego Horizon Adventures was developed with Unreal Engine 5 and uses visual enhancements like ray traced lighting on PlayStation 5 and Windows versions.

On PlayStation 5, Lego Horizon Adventures features fidelity and performance graphics modes at 30 and 60 frames per second respectively.

Narrative director James Windeler also added that all of the assets found in the game were "built from an individual [Lego] brick".

[16] Russ had previously voiced Jetakka, a member of the Tenakth tribe, in Horizon Forbidden West who Aloy encounters during side quests.

[17] Lego Horizon Adventures was announced for Nintendo Switch, PlayStation 5, and Windows in June 2024 at Summer Game Fest.