TEteddyh·Sep 14, 2021
Link to author’s site: https://phoboslab.org/underrun/
Source code: https://github.com/phoboslab/underrun
In 14kb WASM game written in Dphoboslab
underrun
JavaScript2018–2021
phoboslab / underrun
underrun
Twin stick shooter game in 13kb of JavaScript/WebGL
3Distinct people
4Mentions
0Explicit recommenders
1.1KGitHub stars
What to know before exploring
What it is
Twin stick shooter game in 13kb of JavaScript/WebGL
GitHub
Where it is used
No documented product use has been verified yet.
What people are saying
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Also in these discussions
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This week on Hacker News
Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 1:49:46 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 year4 dated mentions
Observed mentions: 2018-09-20 11:24:58 UTC to 2021-09-14 14:12:48 UTC.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| 2018 | 2018-01-01 00:00:00 UTC | 2019-01-01 00:00:00 UTC | 2 | 0 | 2 |
| 2019 | 2019-01-01 00:00:00 UTC | 2020-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2020 | 2020-01-01 00:00:00 UTC | 2021-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2021 | 2021-01-01 00:00:00 UTC | 2022-01-01 00:00:00 UTC | 2 | 0 | 2 |
What Hacker News says
4 sourcesShould be fixed with https://github.com/phoboslab/underrun/commit/2477c5a45f5be4d...
Rolling back X and Z when any collision occurs would prevent you from "hugging" (i.e. sliding along) walls. The problem was that a near corner collision wasn't correctly detected when the player didn't collide in X direction in the last frame (last_x) but does collide in the current frame (t.x), allowing the player to move into the corner in Y direction.
Thanks!
In The Making of Underrun – A WebGL Shooter in 13kb of JavaScriptGood game, but unfortunately I was able to get stuck on an edge. Player's upper left edge caught on wall's lower right corner. Perhaps the problem is in the collision checking: https://github.com/phoboslab/underrun/blob/master/source/ent...
If there's a collision in either X or Z, both should be rolled back to their last positions. I think there is possibly an edge case hidden in there otherwise.
P.S. Nice code by the way.
In The Making of Underrun – A WebGL Shooter in 13kb of JavaScript