A single-player Hollow Knight mod: play the usual Hollow Knight progression as Niko, carrying OneShot's Sun. The Entity's red corruption appears in Dirtmouth and the Forgotten Crossroads, where it speaks to the player as the "god" and tries to turn the Sun toward the infection. Niko's goal is to save Hallownest.
The mod reads Graphics/Characters/niko_bulb.png, Graphics/Faces/niko.png, and Graphics/Characters/red_glitch.png from the player's own OneShot folder at runtime. It does not include or redistribute either game's assets.
Extract NikoHallownest.dll into hollow_knight_Data/Managed/Mods/NikoHallownest/ in the Hollow Knight folder. Keep the folder name and DLL name as shown. Then launch Hollow Knight with Modding API v77 enabled.
A new game wakes in Dirtmouth, and Niko's OneShot sprite replaces the visible Knight while Hollow Knight movement, combat, maps and progression stay active. Short dialogue scenes introduce the Entity in Dirtmouth and the Forgotten Crossroads. Press confirm (Z, Space, or Enter) or click Continue to advance.
The finale interpretation is a later story goal; this first build does not claim to replace Hollow Knight's ending.
From this source folder, run python BuildSheets.py --preflight, then python BuildSheets.py --preflight --generate, then build src/NikoHallownest.csproj with the official API v77 reference assemblies. Never package game files or files from either installed game.
OneShot by Future Cat; Hollow Knight by Team Cherry. The user-facing listing's license and remix permissions are still to be confirmed with the creator.