DEV HUB_

EXPERIMENTAL PORTS

Overview

We have outsourced the development of (experimental) client ports of Arma 3 to Linux and Mac. These are available (beta) as a complementary service to anyone who owns Arma 3 for Windows. It is not guaranteed these ports will ever graduate from their experimental betas. We will be evaluating the popularity of the betas and any issues they may reveal.

The experimental beta ports have several significant limitations. Please review them before you use the ports, but especially before you purchase the game specifically for one of the port platforms!

Limitations

  • Restricted update cycle - the beta ports have been updated to version 1.54, but we are not yet sure when they will be updated in the future.
  • Limited multiplayer compatibility - the ports technically support mulitplayer connections with the Windows version. However, the server and clients need to be the same version. We offer special Legacy Build branches on Steam for Windows to downgrade to the compatible version (access code: Arma3LegacyPorts for Arma 3 and Arma 3 Server).
  • No BattlEye anti-cheat - this service is not available on the port platforms at the moment, but we hope to incorporate it in a future update.
  • No Launcher - the game's own launcher is not available.
  • No Advanced Flight Model - helicopter simulation via RotorLib is not available.
  • No Steam branches - it may be possible to select different branches, such as Dev-Branch, but they will not download data or be incompatible.
  • Limited User-Generated Content compatibility - custom scenarios and mods technically can work in the ports, but it is likely their authors will pursue compatibility with the primary Windows version instead.
  • Non-native - the ports use specialized porting technology developed by our partners Virtual Programming.
  • Performance - based on our tests, you may experience up to 10% degraded performance in comparison to the Windows version.
  • Requirements - please check the modified minimum requirements for the ports.

Access

The port betas are published as the Arma 3 main branch on Steam for both platforms. If you own Arma 3 and install it on Linux or Mac, Steam will download the data for those platforms. No special Steam branch needs to be selected. More installation help can be found here.

F.A.Q.

Besides the Feedback Tracker, we're collecting the biggest known issues here.
Due to the limitations (some of which will never be overcome), we do not feel we can provide a full experience on the port platforms at this time.
Yes, you are purchasing the game for Windows and given complementary Linux and Mac versions.
Please post issues to the Feedback Tracker, and submit the relevant version and OS information. You can also discuss the ports generally in this sub-forum.
Currently we support only version 1.54 (which includes Karts DLC, Helicopters DLC and Marksmen DLC). There will likely be future updates of the ports, but it is not yet confirmed when.
No, Arma 3 will remain a PC-exclusive.
The ports may be outdated when compared to the Windows version. You can only join servers of the same version (green in the list).

LINUX SYSTEM REQUIREMENTS

MINIMUM
OS any current 64bit Linux Distribution (tested on Fedora 22, Ubuntu 14.04 and Mint 17.01)
PROCESSOR Quad core CPU (Intel Core i5 2.4 GHz or better)
GRAPHICS OpenGL 4.1 compliant GPU (NVIDIA GeForce GTX 440 or AMD HD 7470 or better)
GPU MEMORY 1 GB
RAM 8 GB
HARD DRIVE 20 GB
RECOMMENDED
OS any current 64bit Linux Distribution (tested on Fedora 22, Ubuntu 14.04 and Mint 17.01)
PROCESSOR Intel Core i7 3.4 GHz or AMD FX-8350 4 GHz
GRAPHICS OpenGL 4.1 compliant GPU (NVIDIA GeForce GTX 660 or AMD Radeon HD 7850 or better)
GPU MEMORY 2 GB
RAM 8 GB
HARD DRIVE 25 GB

MAC SYSTEM REQUIREMENTS

MINIMUM
OS OSX Yosemite 10.10.5
PROCESSOR Quad core processor (Intel Core i5 4570S, Intel Core i5 4570R)
GRAPHICS OpenGL 4.1 compliant GPU (AMD Radeon HD 6750 or nVidia GT 750M or better)
GPU MEMORY 1 GB
RAM 8 GB
HARD DRIVE 20 GB
RECOMMENDED
OS OSX Yosemite 10.10.5
PROCESSOR Quad core processor 3.0GHz+ (Intel Core i5 4670 and better)
GRAPHICS OpenGL 4.1 compliant GPU (NVIDIA GeForce GTX 775M or AMD Radeon HD 8970M or better)
GPU MEMORY 2 GB
RAM 8 GB
HARD DRIVE 25 GB