DOOM II: Legacy of Rust

Legacy of Rust is an ID24-compatible expansion, with two new episodes The Vulcan Abyss and Counterfeit Eden. It features six new enemies, two new weapons, and many new textures all based on unused and cut content.

It was released on August 8, 2024, being spearheaded by Xaser Acheron, who also provided an all-new soundtrack. It was released alongside the Doom and Doom II re-release titled Doom + Doom II, which uses the KEX Engine, replacing the official Unity port.

"Created in collaboration by id Software, Nightdive Studios, and MachineGames, Legacy of Rust is the newest episode for DOOM, and the first official episode since DOOM II to feature new demons and weapons. This 16-map Episode is broken up into two 8 map sections: The Vulcan Abyss and Counterfeit Eden."

― Steam page description

Legacy of Rust was given a special feature in the 2024 Cacowards.