Christopher Drum has ported Infocom's Z-machine, specifically the Unix version 1.1, to a single executable using Cosmopolitan Libc. This allows classic Infocom text adventures, which were originally designed for various platforms, to run natively on modern operating systems (Windows, macOS, Linux, FreeBSD, OpenBSD, NetBSD) without emulation or VMs. The porting process involved minimal code changes, primarily focused on resolving system call discrepancies between the original Unix environment and Cosmopolitan's compatibility layer. This approach leverages Cosmopolitan's ability to build statically linked, universally compatible executables, effectively "resurrecting" these classic games for contemporary systems while preserving their original codebase.
Ren'Py is a free and open-source engine designed for creating visual novels, a genre of interactive storytelling that blends text, images, and sound. It simplifies development with a Python-based scripting language, allowing creators to easily manage dialogue, branching narratives, and character interactions. Ren'Py supports a wide range of features including animated sprites, movie playback, and various transition effects, making it accessible to both novice and experienced developers. It’s cross-platform, meaning games created with Ren'Py can be deployed on Windows, macOS, Linux, Android, iOS, and web browsers, reaching a broad audience. The engine prioritizes ease of use and provides comprehensive documentation and a supportive community, enabling creators to focus on crafting compelling stories.
Hacker News users discuss Ren'Py's ease of use, especially for non-programmers, enabling them to create visual novels with minimal coding. Several commenters praise its accessibility and the large community supporting it. Some note its limitations, especially regarding more complex game mechanics beyond the visual novel genre, though acknowledge its suitability for its intended purpose. The scripting language is described as simple yet powerful enough for narrative-focused games. A few users mention its popularity for adult visual novels, though also highlight its use in more mainstream and non-adult projects. The engine's cross-platform compatibility and active development are also seen as positive aspects.
Detective Stories is a lateral thinking puzzle game where players solve complex mysteries by asking yes/no questions to an AI "detective." The game features intricate scenarios with hidden clues and unexpected twists, requiring players to think creatively and deduce the truth through careful questioning. The AI, powered by Deepseek, offers a dynamic and challenging experience, adapting to player inquiries and revealing information strategically. The website provides a collection of free-to-play cases, offering a unique blend of narrative and logical deduction.
Hacker News users generally praised the Detective Stories game for its unique gameplay, comparing it favorably to other lateral thinking puzzles and text adventures. Several commenters appreciated the integration of the Deepseek AI, finding its ability to answer clarifying questions helpful and impressive. Some expressed concerns about the potential for spoilers and the limitations of the free tier, while others questioned the AI's actual understanding of the stories. A few users shared anecdotes of enjoying the game with friends and family, highlighting its social and engaging nature. The Deepseek AI's occasional "hallucinations" or incorrect responses were also a point of discussion, with some finding them amusing and others viewing them as a potential drawback. Overall, the comments reflect a positive reception for this novel approach to interactive storytelling.
"Trails of Wind" is a generative art project exploring the visualization of wind currents. Using weather data, the artwork dynamically renders swirling lines that represent the movement and direction of wind across a global map. The piece allows viewers to observe complex patterns and the interconnectedness of global weather systems, offering an aesthetic interpretation of otherwise invisible natural forces. The project emphasizes the ever-shifting nature of wind, resulting in a constantly evolving artwork.
HN users largely praised the visual aesthetic and interactive elements of "Trails of Wind," describing it as mesmerizing, beautiful, and relaxing. Some appreciated the technical aspect, noting the clever use of WebGL and shaders. Several commenters pointed out the similarity to the older "wind map" visualizations, while others drew comparisons to other flow visualizations and generative art pieces. A few users wished for additional features like zooming, different data sources, or adjustable parameters. One commenter raised the concern about the project's longevity and the potential for the underlying data source to disappear.
Steve Meretzky recounts his experience collaborating with Douglas Adams on the Hitchhiker's Guide to the Galaxy text adventure game. Adams, while brilliant and funny, was easily distracted and prone to procrastination. Meretzky’s role involved structuring the game, implementing puzzles, and essentially translating Adams' humor and ideas into a playable format. Despite the challenges posed by Adams' working style, Meretzky emphasizes the positive and enjoyable nature of their partnership, highlighting Adams' generosity and the creative freedom he was given. The result was a game faithful to the spirit of the Hitchhiker's Guide universe, showcasing both Adams' unique wit and Meretzky's puzzle design skills.
Hacker News users discuss Steve Meretzky's collaboration with Douglas Adams on the Hitchhiker's Guide to the Galaxy game, praising Meretzky's work on the game and Infocom's text adventures in general. Several commenters share personal anecdotes about playing the game in their youth, highlighting its humor, innovative puzzles, and lasting impact. Some discuss the challenges of adapting Adams's distinctive humor to an interactive medium, acknowledging Meretzky's success in capturing the spirit of the books. The thread also touches on the technical limitations of the era and the ingenuity required to create compelling experiences within those constraints, with some mentioning the feelies included with the game. A few commenters express interest in Meretzky's perspective on modern interactive narrative design.
"Zork: The Great Inner Workings" explores the technical underpinnings of the classic text adventure game, Zork. The article dives into its creation using the MDL programming language, highlighting its object-oriented design before such concepts were widespread. It explains how Zork's world is represented through a network of interconnected rooms and objects, managed through a sophisticated parser that interprets player commands. The piece also touches upon the game's evolution from its mainframe origins to its later commercial releases, illustrating how its internal structure allowed for complex interactions and a rich, immersive experience despite the limitations of text-based gaming.
Hacker News users discuss the technical ingenuity of Zork's implementation, particularly its virtual machine and memory management within the limited hardware constraints of the time. Several commenters reminisce about playing Zork and other Infocom games, highlighting the engaging narrative and parser. The discussion also touches on the cultural impact of Zork and interactive fiction, with mentions of its influence on later games and the enduring appeal of text-based adventures. Some commenters delve into the inner workings described in the article, appreciating the explanation of the Z-machine and its portability. The clever use of dynamic memory allocation and object representation is also praised.
The article explores rule-based programming as a powerful, albeit underutilized, approach to creating interactive fiction. It argues that defining game logic through a set of declarative rules, rather than procedural code, offers significant advantages in terms of maintainability, extensibility, and expressiveness. This approach allows for more complex interactions and emergent behavior, as the game engine processes the rules to determine outcomes, rather than relying on pre-scripted sequences. The author advocates for a system where rules define relationships between objects and actions, enabling dynamic responses to player input and fostering a more reactive and believable game world. This, they suggest, leads to a more natural feeling narrative and simpler development, especially for managing complex game states.
HN users discuss the merits and drawbacks of rule-based programming for interactive fiction, specifically in Inform 7. Some argue that while appearing simpler initially, rule-based systems can become complex and difficult to debug as interactions grow, leading to unpredictable behavior. Others appreciate the declarative nature and find it well-suited for IF's logic, particularly for handling complex scenarios with many objects and states. The potential performance implications of a rule-based engine are also raised. Several commenters express nostalgia for older IF systems and debate the balance between authoring complexity and expressive power offered by different programming paradigms. A recurring theme is the importance of choosing the right tool for the job, acknowledging that rule-based approaches might be ideal for some types of IF but not others. Finally, some users highlight the benefits of declarative programming for expressing relationships and constraints clearly.
The blog post "Standard Patterns in Choice-Based Games" identifies common narrative structures used in choice-driven interactive fiction. It categorizes these patterns into timed choices, gated content based on stats or inventory, branching paths with varying consequences, hubs with radiating storylines, and hidden information or states that influence outcomes. The post argues that these patterns, while useful, can become predictable and limit the potential of the medium if overused. It advocates for greater experimentation with non-linearity and player agency, suggesting ideas like procedurally generated content, emergent narrative, and exploring the impact of player choice on the world beyond immediate consequences.
HN users discuss various aspects of choice-based games, focusing on the tension between player agency and authorial intent. Some highlight the "illusion of choice," where options ultimately lead to similar outcomes, frustrating players seeking meaningful impact. Others argue for embracing this, suggesting that the emotional journey, not branching narratives, is key. The implementation of choice is debated, with some advocating for simple, clear options, while others find value in complex systems with hidden consequences, even if they add development complexity. The importance of replayability is also raised, with the suggestion that games should offer new perspectives and outcomes on subsequent playthroughs. Finally, the use of randomness and procedural generation is discussed as a way to enhance variety and replayability, but with the caveat that it must be carefully balanced to avoid feeling arbitrary.
Summary of Comments ( 39 )
https://news.ycombinator.com/item?id=43677909
Hacker News users generally praised the project for its clever use of Cosmopolitan Libc to create truly portable Z-machine binaries. Several commenters expressed nostalgia for Infocom games and appreciated the effort to preserve them. Some discussed the technical aspects, like the benefits of static linking and the challenges of porting old code. A few users offered suggestions, such as adding features like save/restore functionality and improving the command-line interface. One commenter pointed out the potential for running these games on embedded systems thanks to Cosmopolitan's small footprint. The overall sentiment was positive, with many excited about the possibility of playing classic text adventures on modern and diverse platforms.
The Hacker News post "Show HN: Resurrecting Infocom's Unix Z-Machine with Cosmopolitan" sparked a discussion with several interesting comments.
One commenter expressed excitement about the project, noting the historical significance of Infocom and the Z-machine and praising the elegance of using Cosmopolitan Libc to create a single executable that runs across multiple operating systems. They specifically highlighted the advantage of not needing to compile separate binaries for different platforms.
Another commenter delved into the technical details, explaining how Cosmopolitan Libc achieves its cross-platform compatibility. They described how it leverages the common subset of system calls present in various operating systems, effectively abstracting away the underlying platform differences. This commenter also touched on the clever use of "polyfills" within Cosmopolitan to bridge any gaps in functionality between different systems.
A further comment focused on the practical implications of this approach. They appreciated the simplified distribution process made possible by having a single executable. This, they pointed out, makes it significantly easier to share and run the software, eliminating the complexities of managing platform-specific builds.
Several commenters reminisced about their experiences with Infocom games and the Z-machine, showcasing the nostalgic appeal of this project. These comments added a personal touch to the discussion, highlighting the lasting impact of Infocom's work.
A more technically-inclined commenter questioned the performance implications of using Cosmopolitan Libc. They wondered if the abstraction layer introduced any overhead compared to native compilation. However, another commenter countered this concern, arguing that the performance impact is negligible in most cases, especially given the relatively low computational demands of running a Z-machine interpreter. This exchange offered a balanced perspective on the potential trade-offs involved.
Finally, a commenter inquired about the project's license and its implications for distribution and modification. This practical question highlighted the importance of licensing considerations in open-source projects.
Overall, the comments on the Hacker News post reflected a mix of technical appreciation, nostalgic enthusiasm, and practical considerations. They demonstrated a genuine interest in the project and its potential to bring classic Infocom games to a wider audience.