ASCII diver explores a dark deep-sea cave in a horror game
3.5K views · 83 likes · 24 saves · 4 reposts · Posted Sep 23, 2026 · 0:35 · Interactive
OUR NOTEGameplay from a text-glyph deep-sea horror game where a small submarine glides through glowing ASCII cave walls past lurking creatures as the depth counter climbs, made by Claude Opus 5.5 inside the author's own engine with no other prompt.
I asked opus 5.5 to make a game within the confines and abilities of my engine, no other prompt. It made this deep-sea horror game, with a subtle drone soundtrack. And it's terrifying (if a bit unbalanced/unfair). Sound on.THE PROMPT
Partial prompt — the creator shared only part of it.
I asked opus 5.5 to make a game within the confines and abilities of my engine, no other prompt. It made this deep-sea horror game, with a subtle drone soundtrack. And it's terrifying (if a bit unbalanced/unfair). Sound on.MAKE ONE LIKE THIS
Three steps, using what the creators in this index used.- 1 · Copy the prompt
Use the prompt above as your starting point, then change the subject and the style.
HOW OTHERS WROTE THEIRS → - 2 · Direct it like an editor
- Ask for one self-contained HTML file on a fixed 1920×1080 stage.
- Link this video as the reference for pacing and style.
- Send two or three rounds of specific notes.
- 3 · Render it to MP4
A short piece like this can be screen-recorded, or captured frame by frame for exact timing.
TURN AN HTML ANIMATION INTO AN MP4 →
The creator didn't name their tools. Most videos like this are HTML, canvas or SVG animation written by Claude and screen-recorded or rendered to MP4 — how that works.
Indexed Sep 30, 2026, 2:01 PM · Views as of indexing. Video and post © their creator.