MRNO_OS

cat · drive a:

The disk

Everything here was built inside hard limits: 128K of RAM, three sound channels, sixteen colours on screen. Start with the one you can actually play.

DEADGUN key art

2026 · Game · Amstrad CPC 6128

DEADGUN

A disk-based action game for the Amstrad CPC 6128. Shipped as a real .DSK image and playable right here in a cycle-accurate emulator — boot it, wait for the loader, and grab the keyboard.

  • Locomotive BASIC
  • Z80
  • .DSK
  • Mode 0
MaxMusicLab — Music
02

Ongoing · Music · AY-3-8912 · Synths

MaxMusicLab

The sound lab: chip tunes squeezed out of the CPC’s three-voice AY chip, alongside synth sketches and soundtracks for the games.

  • Chiptune
  • Tracker
  • Soundtracks
MRNO_OS — Web
03

Ongoing · Web · Browser

MRNO_OS

A home on the web that boots like a 1985 micro. Terminal navigation, phosphor colours and a working emulator in the page.

  • HTML
  • CSS
  • RVMPlayer
Mode 0 Studies — Pixel art
04

2025— · Pixel art · 160×200 · 16 colours

Mode 0 Studies

Loading screens and pixel studies that stay inside the CPC’s 27-colour hardware palette. Dithering over gradients, always.

  • Dithering
  • Loading screens