cpu.land

Unix is a family of multitasking, multi-user operating systems, not a single product you download. When an open-source game like Heroes lists "Unix" support, it usually means the source code can be compiled and run on Unix-like systems such as Linux, FreeBSD, Solaris, SunOS, or IRIX. Whether you can actually play depends on whether a binary exists for your system or whether you can build the game from source with a compiler and the required libraries.

Unix as a family, not a download

Unix began as an operating system developed at Bell Labs and later branched into many commercial and academic variants. Over time, the term came to describe both:

• Systems derived from the original Unix code, such as Solaris or IRIX.
• Unix-like systems that follow similar design conventions and APIs but were written independently, such as Linux and FreeBSD.

The Heroes project page reflects this breadth. Its keyword list includes unix, linux, windows, mingw32, solaris, sunos, freebsd, and irix — a mix of operating system families and specific platforms. That list is a signal of where the code has been ported or is expected to build, not a promise that every listed system has a ready-to-run package.

A useful way to think about it: Unix is closer to a specification and a design tradition than to a single installer. Each implementation — Linux, FreeBSD, Solaris — has its own kernel, tools, and package management, even though they share concepts like a hierarchical file system, processes, and a command-line shell.

Why projects list Unix-like platforms separately from Windows

Open-source projects often separate Unix-like targets from Windows because the build and runtime environments differ substantially:

For Heroes, the presence of mingw32 alongside unix, linux, and freebsd suggests the project maintained separate build paths for Windows and for Unix-like systems. Listing them separately helps users find the right download or build instructions instead of assuming one package works everywhere.

Unix is not one downloadable thing

Because Unix is implemented by many systems, there is no single "Unix download" that covers all of them. A game that supports Unix-like systems may provide:

• Prebuilt binaries for specific systems or distributions.
• Source code that you compile yourself.
• Both, with binaries covering the most common platforms and source covering the rest.

The Heroes page describes the project as concentrating on "cleaning the code and porting the game to the various operating systems available," with the goal of a version 1.0 as a "clean and portable base." That language indicates portability work was ongoing rather than finished, so availability of ready binaries for any given Unix-like system should be checked on the download page rather than assumed.

How portable source code gets built on Unix-like systems

When a project distributes source code rather than binaries, running it on a Unix-like system generally follows this pattern:

1. Confirm prerequisites. You need a C or C++ compiler, a build tool such as make, and any libraries the game depends on. The exact list comes from the project's build documentation.
2. Obtain the source. Download the source archive from the project's download page.
3. Configure the build. Many Unix-oriented projects include a configure script that checks your system for compilers and libraries and generates build files. The expected result is a report of what was found and what is missing.
4. Compile. Running make builds the executable. Errors at this stage usually point to missing headers or libraries.
5. Run and verify. Launch the resulting binary. If it starts and reaches the main menu, the build succeeded; missing data files or sound libraries typically show up as startup errors.

For Heroes specifically, the page mentions 12 original sound tracks, 94 levels across 10 tile sets, and a level editor, so a working build also needs the game's data files in place. The page does not document the exact build commands, so those should come from the manual or the source archive's own instructions.

What Unix support means in practice for Heroes

The practical takeaway for a player is conditional:

• If a binary exists for your system, download and run it, checking that required libraries are installed.
• If only source is available, you need a compiler and build tools, and you should expect to resolve dependency issues yourself.
• If your system is listed only as a keyword, treat that as a hint that the code has been considered for that platform, not as a guarantee of a working package.

The Heroes page also notes that the original MS-DOS version is unmaintained and "should be considered obsolete," and that the current code is distributed under the GNU General Public License version 2. That license means the source is available for building and modification, which is exactly what makes porting to multiple Unix-like systems feasible in the first place.

In short, "Unix support" for a game like Heroes describes a family of target systems and a source-based path to running the game, not a single download that works everywhere. Check the download page for your specific system, and be prepared to build from source if no binary is provided.

Arx Libertatis is an improved, cross-platform, open-source engine for Arx Fatalis, the 2002 first-person RPG/dungeon crawler/immersive sim from Arkane Studios. To play on Linux, you install Arx Libertatis (official Linux builds are provided), then point it at a copy of the original Arx Fatalis game data — the engine itself does not include the game. You need to own or otherwise obtain Arx Fatalis or its demo before you can play.

What Arx Libertatis actually is

Arx Libertatis is a port and modernization of the Arx Fatalis engine, based on the publicly released Arx Fatalis source code and available under the GPL 3+ license. Version 1.2.1 supports modern systems, brings the game to new platforms, and removes bugs and limitations of the original release.

Two things follow from that:

• The engine is free and open source. You can download, inspect, and redistribute the code under the GPL.
• The game data is not included. The license covers the engine only. The art, audio, levels, and other assets remain part of the commercial game, so you must supply them yourself.

The game itself features crafting, melee and ranged combat, and a distinctive spellcasting system where you draw runes in real time to cast the spell you want.

What you need before installing

The original game is sold through storefronts such as GOG.com, the Microsoft Store, and the Bethesda Store, and it also has a demo. Any of these gives you the data files the engine needs.

Installing Arx Libertatis on Linux

Arx Libertatis provides official builds for Windows and Linux. Beyond those, it has been packaged for macOS (Homebrew), FreeBSD, DragonFly BSD, NetBSD, OpenBSD, Haiku, and Pandora, and will likely compile and work on other operating systems.

On Linux, you have two practical routes:

Option 1: Use a distribution package

Check whether your distribution ships Arx Libertatis in its repositories. If it does, install it through your normal package manager. This is the least manual path and keeps updates tied to your system.

Option 2: Use the official Linux build

Download the Linux build from the project's download page and unpack it. This works regardless of whether your distribution packages the engine, and it lets you run a specific version such as 1.2.1.

If neither fits, the source is available on GitHub, so you can build it yourself — the project notes it will likely compile on other systems too.

Pointing the engine at your game data

The engine needs to find the Arx Fatalis data files. The general flow is:

1. Install or unpack Arx Libertatis using one of the routes above.
2. Locate your Arx Fatalis data. If you bought the game from a storefront, the installer places the data files somewhere on disk; if you have the demo, it comes as its own set of files.
3. Tell Arx Libertatis where that data is when you first launch it, or place the data where the engine expects it.
4. Launch the game and confirm it reaches the main menu.

The expected result at each step is simple: the engine starts, finds the data, and loads the game rather than exiting with a "data not found" style error.

If the game does not run

Check these in order:

• Data path is wrong. The most common failure is the engine not finding the Arx Fatalis data. Re-check the path you gave it.
• You installed the engine but not the game. Arx Libertatis alone cannot run — it has no assets of its own.
• Graphics/driver problems. Since the engine targets modern systems, most rendering issues trace back to drivers or to running an old build. Try the current release (1.2.1).
• Wrong build for your system. Make sure you grabbed the Linux build, not the Windows one, if you installed manually.

Where to go next

The project plans to keep improving and modernizing the engine and to enable community customizations and mods. If you want to follow development or get help, the project links to its GitHub repository, Mod DB page, and community forums such as the TTLG Forum and the GOG.com forum. There are also community projects built around the game, including the Arx Insanity Mod and other Arx mods.

CPU Scout is a price-tracking tool that aggregates eBay CPU listings and lets you narrow them by brand, clock speed, core count, and cache size. Use it when you want a quick read on what a given processor class is actually selling for on eBay, rather than scrolling through search results and guessing. The filter counts below come from the site's own search interface and show how the inventory is distributed.

Why eBay CPU Prices Move Around

eBay is a marketplace of individual sellers, so the same processor model can carry very different prices at the same time. A few recurring reasons:

• Seller type. A surplus dealer listing dozens of pulled server chips prices differently than a hobbyist selling one desktop CPU.
• Condition wording. "New," "open box," "used," and "for parts" describe very different things, and the price gap between them is often larger than the gap between two adjacent models.
• Volume and generation. Older or high-volume parts are cheap and plentiful; recent or low-volume parts hold value longer.
• Socket and platform demand. A chip that fits a still-popular motherboard can command more than a technically faster chip on a dead platform.

Because of this spread, a single "average price" is less useful than knowing the range and where most listings cluster.

What CPU Scout Lets You Filter

The site exposes eBay CPU inventory through a set of spec filters. Each filter shows how many listings currently match, which tells you how crowded a given segment is.

Two things stand out in that data. First, the "Not specified" bucket dominates every spec filter — most eBay listings don't fill in cache or bus speed, so filtering on those fields will hide a large share of inventory. Second, brand counts mix CPU makers (AMD) with system builders (HP, Dell, Apple), so a brand filter is not the same as a manufacturer filter.

How to Narrow a Search

1. Start with the spec you actually care about. If you need a specific core count, filter on cores first — it's the field with the most usable non-"Not specified" data (4-core alone has 24,672 listings).
2. Add clock speed as a second cut. The 2.5–2.99 GHz and 3.5+ GHz buckets are the two largest populated ranges, so they're where most realistic options sit.
3. Treat cache and bus speed as optional. With over 100,000 listings in each "Not specified" bucket, filtering here will exclude most sellers who simply didn't fill in the field. Use these only if you're targeting a known part number.
4. Check the brand filter carefully. AMD has by far the largest CPU-specific count (27,693). HP, Dell, and Apple counts mostly reflect whole systems or OEM parts, not standalone retail CPUs.
5. Compare the filtered count to the unfiltered count. If adding a filter drops the results from tens of thousands to a handful, you've over-constrained and are looking at an unrepresentative sample.

Judging a Fair Price

Once you have a filtered list, the useful signal is the cluster, not any single listing:

• Look at where most prices sit, then treat outliers above that cluster as overpriced and outliers far below as worth inspecting for a reason.
• A price well under the cluster usually means one of: engineering sample, refurbished/pulled part, missing cooler, bent pins, or a listing that isn't actually the model named in the title.
• Compare across a few days if you can. eBay CPU prices on a given segment drift as listings sell and new ones appear.

Common Traps in eBay CPU Listings

• Engineering samples (ES/QS). These are pre-release chips. They may not run at retail clocks, may lack official support, and are often sold without clear labeling.
• Refurbished or pulled parts. A CPU pulled from a working system is fine for many builds, but the listing should say so. Vague condition wording is a warning sign.
• Wrong-generation lookalikes. Similar model numbers across generations can differ a lot in performance and socket. Match the exact part number, not just the family name.
• "Not specified" specs. Since most listings leave cache and bus speed blank, don't assume a missing value means the spec is absent — it usually just wasn't entered.
• OEM vs. retail packaging. OEM chips may ship without a cooler and with a shorter warranty.

Quick Reference

• Use CPU Scout when you want a filtered view of eBay CPU inventory by core count, clock speed, cache, bus speed, or brand.
• Filter on cores and clock speed first; those fields have the most complete data.
• Avoid over-filtering on cache or bus speed, where "Not specified" covers the majority of listings.
• Judge price by the cluster of comparable listings, and inspect anything far below it for ES, refurb, or mislabeled parts.