CKAN

CKAN is a metadata repository and toolset for finding, installing, and managing Kerbal Space Program mods. Its client connects to an online registry that users can refresh and search by mod name, identifier, author, or relationship. It can download, install, and update mods, using metadata to select versions compatible with the game, include dependencies, and detect conflicts. Users can choose to display incompatible mods through the All filter. The client offers graphical, console, and command-line interfaces. CKAN runs on Windows, macOS, and Linux, with release options for several Linux distributions as well as Windows and macOS. It can manage game installations from any folder; placing it in the game folder enables portable use, including from a thumb drive. If an installation goes wrong, CKAN reverts the GameData directory to its earlier state. Mod authors can contribute or correct metadata, and the project supplies a schema and validator for metadata files. CKAN is open source and MIT-licensed. Help is available through troubleshooting documentation, GitHub issues, and Discord. On macOS 10.15 and later, the console interface is the default because the GUI depends on a 32-bit WinForms application in Mono.

CKAN provides mod discovery, compatibility checks, dependency handling, and several ways to manage installations. macOS users on version 10.15 or later should note that the console interface is the default.

It suits Kerbal Space Program players who want to discover and manage mods, and mod authors who contribute or correct metadata. The project also describes it as useful for modders seeking to avoid installation problems and outdated versions.

CKAN is a free, open-source manager for Kerbal Space Program mods. It suits players who want help finding compatible mods and keeping dependencies in order, and mod authors willing to maintain accurate metadata. Its strongest advantage is a rollback if an installation goes wrong; its main trade-off is the console-first interface on newer macOS versions.

Overview

CKAN combines an online mod registry with tools for installing and managing mods. Players can refresh the registry and search by name, identifier, author, or relationships, then download, install, and update the mods they choose. That central workflow is more useful than managing separate downloads when a setup includes multiple mods and their dependencies.

Its safeguards rely on metadata. CKAN checks game-version compatibility and conflicts, and by default requires mods to be marked compatible with the exact game version. Users can enable additional compatible versions; mods identified as incompatible can still be displayed with the All filter. If an installation goes wrong, CKAN restores the GameData directory to its previous state. That rollback is a meaningful safety net, but it does not remove the need for accurate metadata: the project encourages mod authors to contribute or correct it.

Key features

• Dependency and conflict checks: CKAN installs dependencies alongside a mod and checks for conflicts. This can reduce manual setup and troubleshooting, especially when managing several mods.
• Search and updates: The refreshed registry can be searched by identifiers, names, relationships, or authors; the client also supports updating installed mods.
• Version controls: Exact-version compatibility is the default, with options to allow additional compatible game versions. The All filter exposes mods CKAN identifies as incompatible, giving experienced users visibility without making them the default choice.
• Multiple interfaces: CKAN offers graphical, console, and command-line interfaces. The command line serves advanced users, while the GUI is the more familiar option where supported.
• Portable installs: The executable can manage game installations from any folder. Keeping it in the game folder enables a portable instance suitable for a thumb drive.

Pricing

CKAN costs free under its CKAN plan. The plan is open source and MIT-licensed, with no free trial because there is no paid tier to trial. It includes the mod discovery, installation, and management tools described above; the free price does not come with a stated seat or usage quota.

This is a straightforward fit for individual players and mod authors who want a no-cost tool they can inspect or contribute to. There is no cheaper tier that drops features, nor a paid plan to compare. The project also provides a JSON Schema and validator for CKAN metadata files, useful to authors working on metadata rather than only installing mods.

Platforms

CKAN runs on Windows, macOS, and Linux, with release installation options for Windows, macOS, Debian and Ubuntu derivatives, Fedora and openSUSE, and Arch-based systems. Specialized packages are available for some platforms. On macOS 10.15 and later, the console UI is the default because the graphical interface relies on a Mono WinForms application whose 32-bit support Apple sunset. Mac users who expect a conventional GUI should weigh that limitation before choosing CKAN.

Who it's for

CKAN is best suited to Kerbal Space Program players who want to discover mods and delegate dependency, compatibility, and conflict checks to one manager. It also fits mod authors who want to contribute or correct the metadata that those checks depend on. Players who prefer manual control can use the command-line interface or choose which additional game versions count as compatible, but should understand that metadata accuracy remains important.

Pros and cons

• Pro — Reversible installation: CKAN restores the GameData directory to its previous state if an installation goes wrong.
• Pro — Dependency and compatibility handling: It installs dependencies and checks conflicts and game versions, reducing manual coordination for modded setups.
• Pro — Flexible use: Graphical, console, and command-line interfaces, plus portable operation, accommodate different workflows.
• Con — Metadata-dependent safeguards: Compatibility checks are only as reliable as the metadata authors provide, which is why the project asks authors to help maintain it.
• Con — macOS GUI limitation: On macOS 10.15 and later, the console interface is the default rather than the graphical interface.

Alternatives

For Kerbal Space Program mod management, CKAN is the relevant choice among these links; the alternatives below are focus-stacking software rather than comparable mod managers. Choose among them only if your task is focus stacking instead:

• Focus Stacking Online is a free online focus-stacking option with Android, iOS, Linux, macOS, web, and Windows platforms.
• ImageFocus Alpha is free and cross-platform, but is designed for compatible Euromex camera models.
• ChimpStackr is free, multi-platform focus-stacking software under GPL-3.0.
• CombineZP is a free, GPL-licensed Windows option; its referenced compiled version is 1.0 (x86).
• focus-stack is a free option for Linux, macOS, and Windows.
• Open Galileo is a free Windows option; its maker says it will always be free and accepts voluntary donations.
• Aduku Stacker is a free option for macOS and Windows.
• FocusFusion is a freemium Windows app with a free plan.

Game Mod Managers is the more relevant category for comparing tools aimed at mod management. Focus Stacking Software is for a different task.

Verdict

Kerbal Space Program players who want free mod discovery, dependency handling, compatibility checks, and rollback should choose CKAN. Its strongest reason to recommend it is the combination of automated checks and restoration after a failed installation. Look elsewhere if a graphical interface is essential on macOS 10.15 or later, or if you need software for a game other than Kerbal Space Program.