This is the recently leaked 0x10c prototype which is the current title under development by Mojang. Not much to really say about it other than it's a room with a computer inside and if you open up dcpu.jar as a zip file then you can modify the assembly code which is used for the computer.
I haven't done much with it other than looked at it and played around a little.



Download:
http://www.oldtimes-software.com/files/0x10c/0x10c.zip

Oh boy, here we go! A while down the track and we'll start hearing, "I remember when the Alpha was better".

Nothing wrong with anyone sharing their opinion, especially when they're able to go back and actually play an alpha of it rather than basing it on images or videos

Yeah, I'm just remembering Minecraft. But the concept does indeed look unique.

Doesn't work in Windows 7 - how to start 0x10c in Win 7?

Screen of the problem:

Try updating your version of Java?

Got exactly the same problem on Windows XP Service Pack 3 with newest java version. (Except mine finds 2 controllers and lists a lot of buttons).

Kinda off topic here but here's one of the official development screenshots...

Look at the monitor, Commodore 64 BASIC anyone?

Updated, but still doesn't work. I try compatibility mode too (XP and Vista) but it doesn't work...

I imagine this is very outdated, wondering if a simple assembly OS would work if the file was replaced =P.

My guess is the errors are coming from owners of ATI/AMD cards - open the jar and do the following:

Open the file "4light.frag.txt" in the folder "shaders" and change the 18th line to "vec3 color = texture2D(noiseTex, vec2(gl_FragCoord.x/256.0, gl_FragCoord.y/256.0)).rgb/256.0;"
and then change the 30th line to "color = vec3(0, 0, 0);"
close that and change "frac" on line 35 to "fract" in the file "Display.frag.txt"


and it should work. Also make sure you are using java 7

Thanks a lot. It works

Thanks for the workaround, worked for me as well (just for the record, had a nvidia graphics card, but java 6 installed)

The game looks very interesting!

@hogsy: what did you change in the assembly code?

What you see on the screen in the screenshot I took was someone else's work which was created in an 0x10c emulator and I was interested to see how well it would fair in the actual game but as you can see it didn't work too well. I'm sure if someone had more time on their hands they could probably get it somewhat functional since I don't have much of an understanding of assembly

Assembly knowledge isn't required when it comes to Java. You could simply decompile the Java Archive.

The "virtual computer" uses assembly

I forgot the point of 0x10c, was it something like a custom language, assembler, compiler and emulator and it is based around space or some [censored] like that?

Damn, I'm too much of a programmer to ignore this game...

It's Notch's new game, check his website and you'll find it's more than just what you said, I guess it can grow to be limitless eventually

I was aware that this was the next project of Notch already, I just forgot the point.

(Just noticed that using a synonym for the product of the digestive system is censored...)