Linux

Technical information

Flax is compiled for Linux platform using Clang compiler and uses X11 for UI. Binaries are tested on Ubuntu 24.

If your device has multiple GPUs installed you can select one using the cmd line argument: -nvidia, -intel, or -amd. Flax uses Vulkan for rendering.

If your game build runs on Linux as a server build then you can pass -mute -null -headless -std command line arguments to disable specific features (audio, graphics, window, log to std). To elarn more about command line access see this page.

Build options

Build Options

Property

Description

Output

The built game output folder (relative to the project).

Show Output

If checked, after building the output folder will be shown in an Explorer.

Configuration Mode

Game building mode. Possible options:

Option	Description
Release	The release build ready for shipment.
Debug	The debug build for testing and profiling. Most of the code optimizations are disabled for the best debugging experience.
Development	The development build for testing and profiling but is more optimized for runtime than Debug build.

Platform settings

Settings

Property

Description

Window Mode

The default game window mode. Possible options:

Option	Description
Windowed	The window has borders and does not take up the full screen.
Fullscreen	The window exclusively takes up the full screen.
Borderless	The window behaves like in Windowed mode but has no borders.
Fullscreen Borderless	Same as in Borderless, but is of the size of the screen.

Screen Width

The default game window width (in pixels).

Screen Height

The default game window height (in pixels).

Resizable Window

Enables resizing the game window by the user.

Run In Background

Enables game running when application window loses focus.

Force Single Instance

Limits maximum amount of concurrent game instances running to one, otherwise user may launch application more than once.

Override Icon

Custom icon texture to use for the application (overrides the default one).

Support Vulkan

Enables support for Vulkan. Disabling it reduces compiled shaders count.