“Watching `notch` live-code is also very popular.”
Notch live-coding Minicraft
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Watching `notch` live-code is also very popular. [1]: link Making Metagun [2]: this video Making MiniCraft [3]: link

269K views · Dec 19, 2011 · 18:32 · 1 HN recommender · 3 mentions · discussed 2012–2022
Footage of Notch (Markus Persson) live-coding his Minicraft game in Java during a Ludum Dare 48-hour game jam. It shows a working game developer building a complete small game from scratch.
Why Hacker News points people here: HN points to it as an example of Notch's famous live-coding sessions, which drew many early Minecraft fans.
“Watching `notch` live-code is also very popular.”HN comment, 2012
“Watching `notch` live-code is also very popular.”
Notch live-coding Minicraft
Watching `notch` live-code is also very popular. [1]: link Making Metagun [2]: this video Making MiniCraft [3]: link
“started with geek dads watching Notch live coding and buying the game for their kids”
Notch's live coding drew early Minecraft buyers
As I recall Minecraft's snowball started with geek dads watching Notch live coding and buying the game for their kids. this video
“this is exactly how he used his Java environment”
Shows Notch testing logic changes in his Java environment
If you watch some of Notch’s old game jam live streams; this is exactly how he used his Java environment and is probably why he was so invested in it. You can see some examples here when he just tests logic changes: this video (Though, he restarts often since he’s editing preloaded assets also)