Project Lumoria is a two-part, single-player campaign experience for Halo: Custom Edition. Featuring classic Halo gameplay and the same sense of beauty and wonder, Lumoria lets the player return to the Halo universe to explore a mysterious world and tackle new gameplay challenges.
Started in late 2009, the mod evolved into much more than just a simple single player level. Lumoria became the prime of 2010 for Halo: Custom Edition and became one of the best single player levels ever created for the Custom Edition modding community.
After Episode 1 of Project Lumoria received criticism for its lack of narrative, Isaac was contacted to write Episode 2. He wrote lore for terminals scattered throughout the campaign and a script for the entire Episode 2 story, crafting dramatic moments between pre-existing characters in cutscenes and gameplay.