0x10c

Lore & Background

0x10c was announced on April 3, 2012, by Markus Persson, who had previously stepped down as lead developer of Minecraft in December 2011 to work on other projects. The game was inspired by the television show Firefly and the video game Elite. Its name derives from the hexadecimal literal 0x10c, which equals 268 in decimal. The game was set in the year AD 281,474,976,712,644, which is derived from 0x1000000000000 (2^48), not from 0x10c. This year was reached after a bug in deep sleep cells released in 1988 caused people to wake up from deep sleep.

Gameplay was to include a fully working emulated 16-bit processor called the DCPU-16, accessible through in-game monitors, which could load external programs and data. Other planned features included engineering, space battles, seamless space-to-planet transitions, mining, trading. Regarding monetization, Persson briefly mentioned a possible subscription model in a speculative tweet, but no monthly fee for online multiplayer was ever officially confirmed as a planned feature.

Reader's Guide

0x10c is significant as an ambitious but ultimately unfinished project from Markus Persson, the creator of Minecraft, and from Mojang AB. Its development highlighted the challenges of scope and creative burnout in game design, as Persson admitted that extensive early planning "sucked out any fun from the project." The game's most notable feature was the DCPU-16, a fully emulated 16-bit processor that players could program, which fostered a community of hobbyists who created emulators and software for it even after the game's cancellation. The project also demonstrated Mojang's willingness to experiment with new monetization models, as it was expected to be the company's first game with a monthly fee for online multiplayer. Though never released, 0x10c remains a reference point for discussions about vaporware, the risks of over-ambitious design, and the intersection of gaming and programming education. Its cancellation marked a shift for Persson, who stated he would focus on smaller projects to rekindle his love for programming games.

Did You Know?

• The game's name, 0x10c, is pronounced "ten to the c" by Markus Persson, though he said people can pronounce it however they want.
• The DCPU-16 was a working emulated 16-bit processor inside the game that could load external programs and data.
• The game's soundtrack was composed by Daniel Rosenfeld (C418), who also composed the music for Minecraft.
• 0x10c was expected to be the first Mojang game with a monthly fee for online multiplayer play.

A Universe Encoded in Hexadecimal

The title is itself a small act of programmer poetry. In most high-level programming languages, the prefix 0x marks a hexadecimal literal, and the value 10C in base sixteen translates to 1,612 in decimal. That figure, 1,612, corresponds to the number of years that have passed in the game's story since 1988, when a defect in deep sleep cells plunged humanity into a prolonged slumber. Players would find themselves waking in the year AD 281,474,976,712,644, roughly 281.5 trillion years into the future, into a vast sandbox where engineering, space combat, mining, and trading coexist in a single open universe. The design promised seamless transitions between the emptiness of space and the surfaces of planets, laser-based weaponry, and a persistent Multiverse structure that kept single-player and multiplayer experiences aligned within one consistent world.

The DCPU-16 and a Living Machine

One of the most technically ambitious elements was the DCPU-16, a fully emulated 16-bit processor embedded in the game world. Players could access it through any monitor present in the environment, effectively giving them a working virtual computer inside the sandbox. The processor was designed to load external programs and data using standard protocols, a choice that would have opened the door for the community to build their own DCPU-16 emulators outside the game. This was not merely a decorative terminal; it was meant to be a functional computing layer that players could program, extend, and share. Combined with the advanced economy system and random encounters that were part of the announced feature set, the DCPU-16 positioned 0x10c as something far more interactive than a typical space shooter, leaning into a sandbox philosophy where the player's creativity was the primary engine of content.

From Firefly to Burnout

The project's origins trace back to December 2011, when Markus Persson announced he was stepping away as lead developer of Minecraft to pursue new work. After collecting a special BAFTA award in March 2012, he revealed he was juggling three separate projects and had not yet committed to one. Days later, in a PC Gamer interview, he described a space-themed game drawing inspiration from the television series Firefly and the classic video game Elite. The first public hint came through an April Fool's parody site called Mars Effect, a nod to Mass Effect that also winked at a trademark lawsuit involving Bethesda Softworks. Persson later confirmed the real name and shared that development had begun. By April 2013, however, he told Polygon that a creative roadblock had struck and the project was on hold. In August 2013, during a live stream, he confirmed the game was indefinitely shelved, saying the early planning and design had sucked out any fun and left him burned out. He expressed a desire to return to smaller projects that would rekindle his original love of programming games.

Art, Sound, and a Price That Never Was

The visual direction, as described by artist Jonatan Pöljö, blended pixel art with modern 3D rendering, drawing on bright, vivid science-fiction aesthetics alongside real-world functional spaceship design to match the game's realistic tone. On the audio side, Daniel Rosenfeld, known as C418 and the composer behind Minecraft's soundtrack, released two tracks for 0x10c on his Bandcamp page in September 2014, titled 0x10c and 0. Pricing was expected to follow a tiered model similar to Minecraft, with alpha cheaper than beta and beta cheaper than the full release. Notably, 0x10c was slated to be the first Mojang title to charge a monthly fee for online multiplayer, a cost Persson attributed to the expense of emulating all computers and physics systems even when players were offline. Whether a private multiplayer option would exist remained unclear. The game was ultimately cancelled, leaving these design choices as a quiet footnote in Mojang's history.