How to Install and Use Mods in Abiotic Factor After Community Update #5

Six years after it first let players claw their way out of a secret underground facility, Abiotic Factor has opened its doors to outsiders. On October 26, 2026, developer Deep Field Games shipped Community Update #5, nicknamed "The Modding Update," bringing version 1.5.0 and, with it, the survival-crafting game's first official mod support. A built-in Mod Browser, a standalone Mod Editor, and a direct line to mod.io mean players no longer have to hand-install loose files to change how the GATE facility plays. Here is what actually shipped and how to get mods running, whether you are hosting a server or just joining a friend's save.

What's New in Community Update #5

The headline feature is mod support itself, but version 1.5.0 carries a full slate of other changes alongside it. The patch adds a new side-quest system built around a familiar talking trinket and the facility's resident errand-giver Grayson, a new pet called IS-0178-I that Peccaries can mutate into after eating certain substances, and ten collectible tie bandana styles plus a new orange tie fabric for every scientist's lab coat. The GATEPal map now tracks several quests at once and lets players choose which one becomes the active waypoint.

Deep Field Games also rebalanced several systems in the same build. Oven-cooked recipes are more nutritious under the reworked Gastronomic R&D system, while a handful of staple foods had their nutrition trimmed slightly. Several Tinctures hit harder and last longer, some concoctions are cheaper to produce, and Hardlight weapons now work against Hardlight defensive arrays and fire-immune enemies. The full changelog, posted alongside the update, also lists fixes to controller radial menus, VOIP audio, and a progression-blocking bug in the "Get to the Surface Tunnel" quest.

The side-quest system is the most visible non-modding addition. One new assignment asks you to administer first aid to an injured manufacturing employee, while a short series sees you helping a scientist escape what the patch notes describe as a watery grave. Deep Field Games has framed these as an early test of a feature it intends to keep expanding, rather than a one-time content drop, which lines up with the studio's description of Community Update #5 as a "landmark" rather than a finishing point for the game's second year.

How to Browse and Install Gameplay Mods

Official mods live on Abiotic Factor's mod.io page and are accessed entirely in-game, with no third-party mod manager required. Deep Field Games published a short step-by-step walkthrough alongside the update, and the process breaks down into a few clicks:

1. From the title screen, click the new MODS button. This opens the Mod Library, where you can browse everything currently available on mod.io and search by name or filter by tag.
2. Once you find a mod you want, click SUBSCRIBE to start the download. Repeat for as many mods as you like; clicking UNSUBSCRIBE later removes one.
3. Open your Saved Worlds list and click the same MODS button there. This shows every mod you have downloaded so you can pick which ones should be active in that particular save.
4. Select the mods you want for that world and click SAVE, then host the game as you normally would.

Disabling a mod you previously enabled removes its content from that save, and Deep Field Games warns that stability is not guaranteed when you do, since items or deployables tied to the mod can vanish.

Before You Start Installing Mods

A few habits will save you a ruined save file. Back up your world folder before subscribing to anything new, especially if you are hosting for a group rather than playing solo, since a crash mid-session is harder to recover from on a shared server than a local one. Read a mod's description and tags on mod.io before subscribing rather than after, because the Mod Library's search and filter tools are there precisely so you can confirm what a mod changes before it touches your save. If you run a dedicated server rather than hosting from inside the game, remember that the server itself needs to be updated to version 1.5.0 before any of its players can use official mods at all, the same way any other patch requires a server update first.

Cosmetic Mods and Joining a Modded Server

Cosmetic mods are handled separately from gameplay mods so players can switch between saves without re-enabling every item each time. They live under the MODS button inside the character Customization screen; once enabled there, the modded clothing or accessory shows up as a normal option on the customization screen itself. Because cosmetics are opt-in per player, a scientist running a cosmetic mod will appear in their default clothes to anyone in the lobby who has not installed the same mod, so Deep Field Games' guide suggests sharing the mod's name with the rest of the crew if you want everyone to see it.

Joining someone else's modded server is just as automatic. Clicking JOIN brings up a list of every mod that server is running; clicking CONTINUE starts downloading all of them before dropping you into the world. A small tooltip indicator now marks modded items and recipes in your inventory and crafting menus, so it is obvious at a glance what came from the base game and what a mod added.

What Happens to Your Old Unofficial Mods

Abiotic Factor already had an unofficial modding scene before this update, and those mods have not been deleted or blocked outright. According to Deep Field Games' own patch notes, unofficial mods still function, but they will not appear anywhere in the new in-game Mod Browser or management tools, meaning every player in a server has to install them manually to stay in sync. More importantly, the studio states plainly that nearly all unofficial mods are expected to break in significant ways under the version 1.5.0 code and data changes, and that the team will not offer support for problems those mods cause. If a save starts throwing fatal error crashes after the update, the recommended fix is to uninstall any unofficial mods first, and to manually delete leftover mod files if reinstalling the game or verifying files does not clear the problem on its own.

Official mods get a smoother safety net by comparison: each one is versioned, and the game will not let you enable a mod built for an older release until its creator pushes a compatible update, automatically disabling incompatible mods rather than letting them corrupt a save.

Players who want to build their own mods rather than just install them can grab the standalone Abiotic Factor Mod Editor free from the Epic Games Store, which Deep Field Games built specifically to pair with the new in-game browser. Abiotic Factor remains available on Steam for PC, PlayStation 5, and Xbox Series X|S, and the team has said it plans to keep expanding the mod system over time rather than treating Community Update #5 as a one-off release.