Opus 5.5 is insane , just see this.. It is building this Minecraft clone from scratch, entirely with code. - 101,442 lines of game code - 26,708 lines of tests - 988 automated tests - 775 files - ~25 hours so far 783 pictures, 184sounds all made by code! 1/3

2/3 it even built a full in-game guide so anyone can learn and play from scratch.

3/3 Behind the scene of this game.

26.7k lines of tests for 101k lines of game is roughly 1:4. That ratio is the real story, on a 25-hour run, those 988 tests are what stop the agent from drifting. The model gets the credit, the test suite does the steering.

This is a solid build, Is there a repo we can try?

I will host the game once ready..

Why is everyone building Minecraft? Why nobody building a ?

I am building it because my son loves it, and it’s another way for me to bond with him through something he loves. I don’t get much time to play with him because of work and other commitments.

Not directed at you, but a lot of people are building their own Minecrafts. Almost every new model release comes with a dozen of Minecrafts people built with it.

yeah .. i never played myself but he loves it

same model wrote the code and the tests, so the count is really it agreeing with itself. fine on a block world. you load it, the bug is right there. i'd want something else on a build you can't just look at

How playable is the frame rate once you load multiple chunks simultaneously.

Eveything works like butter.

and dey say ai aint goat

Very useful test. Is it not expensive though?

It is.. But here we are.. He loves Minecraft

now can i hack your game to be a super player ? my tokens will go there, what was the url you said 😂

leave minecraft alone, can’t you see those guys happy lol 😜 imagine taking over all that revenue?

Is source available on github? Would like to play around with it :)

Is it a web-based game? Or a desktop game? Will you open source it? I also want to build a minecraft clone, I found a really nice one a few days ago but it was missing several key pieces. I wanted to contribute but it wasn't open source. Will we be able to download/play it?

Powerful

huuuh

Nice! But why not build something new?

26,708 lines of tests is the actual headline. the game is the demo, the tests are why it survives the next change

Were you using Claude Code for this or a different harness?

nah fr, that's a whole dev pipeline you just printed

Impressive scale, especially the 988 tests, wonder how stable the physics are under heavy chunk loads?

A Minecraft clone where the developer does the grinding first.

What’s the point of even churning out one slop after another ?

This is much closer to what I mean by a real AI-built game. 25 hours + that codebase size is substantial. How much actual gameplay is there now, persistence, progression, long sessions, balancing, versus breadth of generated systems/assets?

25 小时写到这规模，最想看它跑起来是什么样。

opus 5.5 capabilities is so good, I'm not sure how close will other competitors rival it

Insane