SLADE3

SLADE3 is a free desktop editor for Doom-engine games and source ports, aimed at modders working with game resources. Its central appeal is having archive, map, text, graphics, and audio tools in one application; its specialized scope and the risks of beta builds make it a less natural fit for general game-asset work.

Overview

SLADE3 covers both archive management and editing several kinds of content. It can create, open, save, import, export, order, convert, and revert archive resources, with multiple archives open in tabs for copying and pasting between them. Batch extraction and repacking make it useful for moving assets in bulk, while the archive workflow also supports careful changes to individual entries.

Its formats span Doom WAD and ZIP/PK3, Quake PAK and WAD2, Build GRP and ART, Shadowcaster DAT/LIB, and many others, including GOB/LFD, RFF, HOG, and POD. That breadth helps when a project touches several older game formats, but does not make SLADE3 a universal editor: its stated focus is Doom-engine games and source ports.

Key features

Maps and text

The map editor works with Doom, Hexen, and UDMF maps, and includes 3D editing, automatic sector generation, and advanced source-port features. This makes SLADE3 a stronger choice for level creators than an extractor that only exposes files. The text editor adds syntax highlighting, calltips, autocomplete, auto-indent, and find-and-replace, useful for editing project text alongside maps and resources.

Graphics, textures, and audio

Graphics can be viewed, palette-remapped, converted, and exported to PNG; Doom composite textures and ZDoom texture definitions can also be edited. The supported image and texture formats include common types such as PNG, JPEG, and BMP as well as game-specific formats. Audio playback covers MUS, MIDI, XMI, HMI, HMP, and others. These tools make the application practical for inspecting and adjusting varied assets without switching immediately to separate viewers, though its purpose remains game-resource editing rather than general media production.

External tools and release choice

ACS compilation uses an external ACC program, and PNG optimization relies on PNGOUT, PNGCrush, or DeflOpt. Users should account for those dependencies when planning a workflow. Version 3.2.12 is the stable release for Windows, Linux, and macOS. Version 3.3.0 Beta 2 is also offered on all three platforms, but may contain bugs, crashes, or unfinished features, so the stable release is the more cautious choice for dependable work.

Pricing

SLADE3 is free: its desktop editor plan costs nothing. There are no paid tiers to compare or cheaper plans that trade away features. The developer accepts optional donations and code contributions, consistent with its hobby-project development model; neither is required to use the editor. The source repository identifies the software as GPL-2.0 licensed.

Platforms

SLADE3 runs on Linux, macOS, and Windows. The stable release and beta are both offered for those platforms, giving desktop users a choice between the more established version and newer beta software.

Who it's for

SLADE3 suits Doom-engine modders and source-port creators who need to manage archives and work on maps, graphics, textures, text, or audio in the same desktop editor. It is particularly compelling when a project involves several asset types or batch archive work. Someone seeking a general-purpose tool for unrelated game formats, or unwilling to accept beta instability, should look elsewhere or stay with the stable release.

Pros and cons

• Pros: Archive creation, conversion, entry management, batch extraction, and repacking support substantial resource workflows rather than simple browsing.
• Pros: Map, text, graphics, texture, and audio tools bring several common modding tasks into one application.
• Pros: Free use across Windows, Linux, and macOS lowers the barrier for individual modders and cross-platform teams.
• Cons: The focus on Doom-engine games and source ports limits its fit for other game-modding ecosystems.
• Cons: Beta builds may crash or contain unfinished features, which makes them a poor choice when stability matters most.
• Cons: ACS compilation and PNG optimization depend on external programs, adding setup beyond the editor itself.

Alternatives

For a wider directory of extraction tools, browse Game Asset Extractors. Choose Source 2 Viewer instead if Source 2 assets are the target; it is free, open source, and available for Linux, macOS, Windows, and the web. AssetRipper offers a free tier and a $10 a month Premium plan, and is an option to compare when a project calls for its separate stable and nightly builds. OpenKH is a free, Apache-2.0 alternative for users prepared to install the .NET 8.0 Runtime.

QuickBMS is another free, open-source, multiplatform option to consider for a different archive-tool workflow. Rusted PackFile Manager may suit users looking for a free tool with API and self-hosted platform options. w3m is a free Linux alternative. Crowbar is a free Windows alternative with optional donations, while UABEA is a free option for Linux and Windows.

Verdict

SLADE3 is the right pick for Doom-engine modders who want archive handling and editing tools for maps, text, graphics, textures, and audio without paying for a desktop editor. Its strongest reason to choose is that unusually broad, game-focused workflow in one application. Look elsewhere if your work is outside its ecosystem, and favor version 3.2.12 over the beta when crashes or unfinished features would disrupt the job.