# CobaltX 0.3 adds X Mode, a full-screen controller-first game launcher

> **Key takeaway:** CobaltX 0.3 introduces X Mode, a dedicated full-screen game launcher session with built-in handheld support and quick performance controls.

**Published:** 2026-10-18T10:52:10+00:00 
**Source:** DistroWatch Weekly & News 
**Category:** distro-news 
**Canonical URL:** https://fosswire.org/news/cobaltx-03-adds-x-mode-a-full-screen-controller-first-game-l.html 

## Summary
Anton Batishchev has released CobaltX 0.3, an Arch Linux-based gaming distribution. The update centers on X Mode, a full-screen, controller-first launcher that aggregates Steam, Heroic, Bottles, Lutris and user-added games into a standalone login session. Users can select X Mode or desktop during installation and switch later. The release also adds handheld device support via Handheld Daemon for ROG Ally, Legion Go and MSI Claw, plus quick settings for TDP, brightness and volume in both modes.

## What X Mode changes for CobaltX users
- **X Mode** is a separate login session, not just an application — users boot directly into a controller-navigable interface
- **Handheld Daemon** provides native controls for ROG Ally, Legion Go, MSI Claw and similar devices with back button mapping
- **Quick settings** expose TDP wattage limits, performance modes, brightness and volume without leaving the game session
- **CobaltX keyboard** is a themed on-screen keyboard that works with controller or touch input in any application
- **Library management** supports manual addition of AppImages, Windows executables, scripts and ROMs not auto-detected
- **Controller cursor** maps analog stick to mouse movement for desktop navigation without a pointing device

## Why it matters
CobaltX 0.3 joins Bazzite and ChimeraOS in targeting the handheld PC gaming segment with purpose-built interfaces, though it remains a smaller project without corporate backing. The X Mode session approach may interest users who want console-like boot-to-game behavior without sacrificing full desktop access.