NetHack just got its 5.0 update after 39 years of development

The NetHack DevTeam released version 5.0.0 of their open-source roguelike on Friday. The update adds over 3,100 fixes to a game that first launched in 1987.

The new version introduces C99 standard compliance and replaces older compilers with Lua-based alternatives. You cannot bring your old saved games or "bones files" into version 5.0.0. Everyone has to start fresh. The team also pushed an updated Amiga binary on Saturday, May 3, 2026. A separate patch for building the older 3.6.7 version with GCC 15.1 had been released earlier, on April 18, 2025.

The incompatibility of bones files in version 5.0.0 forces a hard reset for long-time players. When your character dies in NetHack, the game occasionally saves the level and your inventory as a bones file. A future character can then stumble across your old ghost and loot your gear. Version 5.0.0 wipes the slate clean, so you will not run into any ghosts from the 3.6 era.

They only make one game

The NetHack DevTeam is the same continuous group that started the project 39 years ago. They do not make other games. They just maintain NetHack. I think it is wild that a single team has maintained one game for nearly four decades without pivoting to a sequel or a new IP.

The DevTeam membership rotates over time, but the organization itself has never fractured or rebranded. They coordinate via private servers and rarely give interviews. Their singular focus on this single codebase is an anomaly in the games industry.

The game is a direct descendant of the 1984 title Hack, which itself was built on the foundation of 1980's Rogue. The DevTeam operates entirely on their own schedule. The community went over a decade without a major update before version 3.6.0 dropped in 2015. Now we have version 5.0.0, and the development culture remains exactly the same.

NetHack is famous for its emergent complexity. Players navigate procedurally generated dungeons using turn-based ASCII graphics. The game has a rule for almost every possible item interaction. If you try to dip a potion of blindness into a potion of healing, or put a bag of holding inside another bag of holding, the game knows what to do.

The Diablo and Minecraft DNA

NetHack is the reason a lot of modern games exist in their current form. The procedural generation and loot mechanics directly influenced the original Diablo. Blizzard's developers looked at the deep, randomized dungeon crawling of roguelikes and adapted it into a real-time action game.

Minecraft also pulled from the roguelike genre's approach to randomly generated worlds. The core loop of descending into Gehennom to retrieve the Amulet of Yendor has been copied, modified, and repackaged by hundreds of developers over the years. NetHack still does it with a keyboard and an unforgiving permadeath system.

A push for accessibility

The official website is getting an overhaul to improve accessibility functionality. Researchers like Alexei Pepers have previously highlighted the need to make terminal-based games playable for visually impaired users. Pepers gave a talk at Roguelike Celebration about the challenges of parsing ASCII grids through screen readers.

The 5.0.0 release notes and source code are available on the official site. The game is 39 years old and it will still kill you with a grid bug on the first floor.

Pick up Rogue Spirit on Humble Bundle.

Space Hack is available on Humble Bundle for $0.99 (80% off).

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