Observed arrival · 2026-11-03
Apollo 11, One Instruction at a Time
A browser-based Apollo Guidance Computer simulator runs the original Apollo 11 flight software, with controls to pause, step, change speed, and attempt a lunar landing.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Apollo history and computer-simulation enthusiasts
- Worth noticing
- The emulated Block II computer runs at 85,333 memory cycles per second and exposes DSKY lamps, digits, and alarm codes.
Field notes
The page says the browser assembles the source into 36 banks of core rope before execution. Its guide explains how to key commands into the DSKY with the keyboard or by tapping controls, and says lamps and digits reflect the software through the same I/O channels used by the real hardware. Source links point to GitHub, with credits to the Virtual AGC project.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue