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NielsLeenheer
cssDOOM
JavaScript2026–2026
NielsLeenheer / cssDOOM

cssDOOM

A DOOM engine implemented in CSS

Web DevelopmentGames & Emulation
Explore on GitHubRead Hacker News discussions
3Distinct people
3Mentions
0Explicit recommenders
216GitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

A DOOM engine implemented in CSS

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:56:07 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by week3 dated mentions

Observed mentions: 2026-06-01 15:53:31 UTC to 2026-08-21 17:28:49 UTC. Weeks start Monday, UTC.

012026-06-01 00:00:00 UTC to 2026-06-08 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 commentsJun 12026-06-08 00:00:00 UTC to 2026-06-15 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-06-15 00:00:00 UTC to 2026-06-22 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2026-06-22 00:00:00 UTC to 2026-06-29 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-06-29 00:00:00 UTC to 2026-07-06 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-07-06 00:00:00 UTC to 2026-07-13 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 commentsJul 62026-07-13 00:00:00 UTC to 2026-07-20 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-07-20 00:00:00 UTC to 2026-07-27 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-07-27 00:00:00 UTC to 2026-08-03 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-08-03 00:00:00 UTC to 2026-08-10 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-08-10 00:00:00 UTC to 2026-08-17 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-08-17 00:00:00 UTC to 2026-08-24 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 commentsAug 17

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
Jun 12026-06-01 00:00:00 UTC2026-06-08 00:00:00 UTC101
Jun 82026-06-08 00:00:00 UTC2026-06-15 00:00:00 UTC000
Jun 152026-06-15 00:00:00 UTC2026-06-22 00:00:00 UTC101
Jun 222026-06-22 00:00:00 UTC2026-06-29 00:00:00 UTC000
Jun 292026-06-29 00:00:00 UTC2026-07-06 00:00:00 UTC000
Jul 62026-07-06 00:00:00 UTC2026-07-13 00:00:00 UTC000
Jul 132026-07-13 00:00:00 UTC2026-07-20 00:00:00 UTC000
Jul 202026-07-20 00:00:00 UTC2026-07-27 00:00:00 UTC000
Jul 272026-07-27 00:00:00 UTC2026-08-03 00:00:00 UTC000
Aug 32026-08-03 00:00:00 UTC2026-08-10 00:00:00 UTC000
Aug 102026-08-10 00:00:00 UTC2026-08-17 00:00:00 UTC000
Aug 172026-08-17 00:00:00 UTC2026-08-24 00:00:00 UTC101

What Hacker News says

3 sources
abustamam·Aug 21, 2026
As an aside, sometimes just because we _can_ do X in Y doesn't necessarily mean it's always the best solution. One example that comes to mind is people doing really cool things like Doom in CSS (https://github.com/NielsLeenheer/cssDOOM). Really cool? Yeah! Practical? Debatable. That said, is _is_ quite nice that HTML can do so much natively. Now that I'm using LLMs more and more to build front-ends I find myself using fewer libraries and leaning more towards native HTML behavior, and it's been a nice experience.
In HTML Can Do That

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