Man creates playable 3D adventure game in just 24 hours using AI and shares the entire process

Making a video game traditionally requires a team of developers, artists and designers working together for months.

But artificial intelligence is beginning to change how quickly people can turn an idea into something playable.

One developer has shown just how far the technology has come after creating an entire 3D adventure game in only 24 hours.

He has now shared the process behind the project, including the AI tools he used to build its characters, environments and gameplay.

AI helped turn an idea into a playable 3D world

Creating a video game from scratch can take months or even years, particularly when it involves designing characters, building environments, and making everything work together.

But one developer has demonstrated how much of that process can be accelerated with artificial intelligence, and it doesn’t take any fancy gaming PCs.

Shikhar, who posts on X as @xikhar, shared a series of posts on November 4 explaining how he created an original 3D adventure game called Sumiro in just 24 hours.

The project combines several AI tools with traditional 3D software and coding to create a world players can explore themselves.

Rather than simply generating a video of what a game might look like, Shikhar built an interactive experience with playable levels, characters, and different challenges.

The developer also shared the entire process, showing others how they could try something similar.

The developer shared his entire AI game-making process

The first step involved generating a reference video using Flux 3 Max through fal.ai.

This provided the visual direction for the game, including its environment, overall art style and main character.

Shikhar then took screenshots from the video and used Blender to recreate the environment as 3D assets, before bringing everything together using Three.js.

Claude Code was used to coordinate different AI agents, allowing them to build and check different parts of the project in parallel.

The main character was created using a similar process.

Shikhar generated four different views of the character with GPT Image before turning those references into a 3D model using Tripo.

Claude Opus 5.5 then helped add animations and cloth physics to make the character move around the world.

Rather than immediately building the entire game, Shikhar first tested a prototype to check that the basic gameplay worked.

Once that was established, he used GPT Image to generate concept art for individual levels, with up to eight images for each one.

Those images were then turned into playable 3D environments.

The developer repeatedly tested the levels, reported bugs and asked the AI agents to fix problems and improve objects before moving on.

Sumiro features puzzles, parkour and enemy encounters

The finished game, which is called Sumiro, takes players through a series of illustrated environments inspired by traditional Japanese ink-wash artwork.

Players control a traveler wearing a straw hat as they explore the world, collect scrolls, and work through different challenges.

The gameplay includes puzzle-solving, parkour, and platforming, with enemies introduced as the adventure progresses.

According to an independent listing on Artifact Hall of Fame, the browser-based game features 12 scrolls to collect across its chapters.

One interesting detail is that the gameplay footage shared by Shikhar was actually recorded by Claude, rather than a human player.

The developer explained that the AI was controlling the character in the demonstration, which is why some of its movements looked a little stiff compared with what a person could achieve.

Shikhar also admitted that the music was not particularly impressive, explaining that he had not had enough time to work on it within the 24-hour deadline.

However, he has already started experimenting with AI music-generation tools and shared a second iteration of Sumiro on November 7, which he said was looking smoother.

The project has attracted millions of views on X, with Shikhar’s original post attracting millions of views on X.

He also made the game available for anyone to play for free, meaning people can experience the results of his 24-hour experiment themselves.