Modrix

Modrix is a game-mod manager for players who want one engine behind graphical, terminal and command-line workflows. It is best suited to people managing several supported games, especially Linux players using Steam and Proton. Its reversible deployment and conflict controls stand out, but beta releases and macOS source installation make it a less settled choice.

Overview

Modrix brings GUI, TUI and CLI frontends together around a shared engine, making it a broad alternative to Vortex rather than a manager tied to one interface. It has built-in support for 86 games, with community plugins extending that coverage. That range is useful for players with varied libraries, though users should weigh it against the project’s pre-release status.

A browser extension passes Nexus Mods download URLs and session cookies to Modrix, which downloads and stages the files without a Nexus API key. This avoids a separate API-key requirement, but the handoff depends on the extension.

Key features

Modrix uses hardlinks where possible when deploying mods, backs up files before overwriting them, and journals changes to support crash recovery. Deployment can also be reversed. Together, these safeguards give users a practical way to recover from interrupted changes or undo a mod setup, a meaningful advantage for complex libraries.

Conflict detection surfaces clashes between enabled mods, while rules and per-file overrides let users choose how to resolve them. This is useful when multiple mods affect the same files, but it also gives users responsibility for deciding which content should take precedence.

On Linux, Modrix treats Steam and Proton as first-class targets. It usually detects Steam-installed games and offers a one-click add-and-switch action, reducing the setup burden for that library. The CLI supports scripting and JSON output, and an MCP server exposes engine functions as tools for agents, making Modrix relevant beyond manual desktop management.

The project says it has no telemetry and that Lua game plugins are sandboxed, with file changes mediated by the core engine. It is GPL-2.0-only licensed.

Pricing

Modrix is free: the Free plan costs nothing and is an open-source mod manager. There are no paid tiers or plan-specific limits to weigh against its feature set. The trade-off is operational rather than financial: the releases page shows versions 0.1.0-beta.1 through 0.1.0-beta.3, all marked pre-release.

Platforms

Modrix supports extension, Linux, macOS and Windows. Linux and macOS do not update in-app, and macOS has no prebuilt binary, so installation requires building from source. That extra work makes macOS the least convenient option; Linux users gain the clearest platform-specific benefit through Steam and Proton support.

Who it's for

Modrix suits players who want a free, open-source manager across multiple games and value deployment recovery, detailed conflict resolution or automation. Linux users with Steam and Proton libraries have a particularly strong reason to consider it. Those who need a mature release or a ready-made macOS installer should look elsewhere.

Pros and cons

Pros: GUI, TUI and CLI frontends share one engine, accommodating different workflows without separate mod setups.

Pros: Backups, change journaling and reversible deployment reduce the risk of leaving a game’s files in a broken state.

Pros: Support for 86 games, plus community plugins, gives multi-game users broad coverage.

Cons: All listed releases are pre-release versions, which may not suit players who want a more established manager.

Cons: macOS users must install from source, while Linux and macOS users do not get in-app updates.

Cons: Nexus Mods downloads rely on a browser extension, even though no Nexus API key is needed.

Alternatives

Game Mod Managers is the broader category for comparing tools. Choose Modrinth if its freemium service, web platform or Modrinth+ plan suits you; that plan costs $4.99 a month and includes ad-free browsing, creator support and a profile badge, with annual billing saving 16%. CurseForge is a free web catalog for Minecraft mods and modpacks, with a paid Premium Monthly tier for ad-free browsing and instant downloads.

G3M, CKAN, Zephyr, RimModManager and Gale Mod Manager are other free options; their supplied plan and platform details may help narrow the choice. Vortex is another free, open-source mod manager, and is the direct comparison for players considering Modrix’s stated replacement target.

Verdict

Choose Modrix if you manage mods across several supported games, want recovery-minded deployment and conflict controls, and are comfortable with pre-release software. Its shared interfaces and Steam/Proton support make it especially compelling for Linux users. Look elsewhere if you need a mature release or a straightforward macOS installation.