HOLLOW 64
A Hollow Knight demake — for a real breadbin C64, written from scratch.
A metroidvania cut down to fit a C64. Twenty-three rooms across three regions with three kings, and everything between them is joined by walking, jumping and clinging to walls:
- Nail, dash, wall jump, pogo and a double jump from the wings — every room teaches one thing and asks for it again in the next.
- A soul bar that fills on kills. Stand still and press down to get a mask back: healing is a pause, not a free life taken while running.
- Benches refill your masks and become your checkpoint. The map fills in as you explore.
- Three SID tunes and eight sound effects, all written for this game.
What it needs
| Machine | PAL Commodore 64. The main loop is locked to the PAL raster, so it will not run correctly on NTSC. |
|---|---|
| Sound | SID 6581 or 8580. No filter register is touched, so both play it as written. |
| Controls | Joystick in port 2, or the keyboard. Both are live. |
| Size | One file, 21 KB. |
| Version | v1.0 — 16 September 2026 |
Download
The .d64 is a disk image: copy it to an SD card device, or mount it in an emulator. The .prg loads directly. Either way it is LOAD"…",8,1 then RUN. The zip has both, plus the release notes and screenshots.
A save is five letters. Sit on a bench and the game prints a code; press K on the title screen to type it back. The alphabet leaves out I, O, Q and U — in a handwritten code 1 and I, 0 and O get confused, and one wrong letter throws the whole code away.