The Steam Deck is a handheld PC running SteamOS. The first setup wizard is straightforward, but a few early choices around updates, power, controls, and storage make the Deck much easier to live with.
These steps apply to all Steam Deck LCD and OLED models running SteamOS.
Does this affect you?
Use this if you just bought a Steam Deck and want to connect it, sign in, install games, and understand which early settings actually matter.
Complete the first-time setup wizard
The first boot walks you through the essentials.
- Hold the power button on the top edge for about one second.
- Choose your language.
- Connect to Wi-Fi when prompted because SteamOS needs initial updates.
- Sign in with your Steam account or create a new one.
- Let the Deck install pending SteamOS updates.
- After setup, stay in Game Mode for normal handheld browsing and launching.
If you already own Steam games on PC, they appear in your library automatically. You only need to download the ones you want on the Deck.
Configure the settings worth changing early
A few settings have a real effect on comfort, battery life, and performance.
- Press the three-dot Quick Settings button and open the Battery area.
- Set a TDP Limit or Frame Rate Limit for lighter games to extend battery life.
- Open Settings > Display and review refresh rate options.
- Use per-game profiles so demanding and lightweight games can keep different settings.
- Check controller layouts from a game’s Properties screen before assuming a game is awkward on Deck.
- Review suspend behavior under Settings > System if you want pickup-and-play sleep behavior.
The default suspend behavior is usually right for handheld use because it lets you pause and resume quickly instead of fully shutting down every time.
Manage storage and add a microSD card
Storage fills quickly, especially on lower-capacity models.
- Check available storage from Settings > System or the Game Mode storage indicator.
- Insert a microSD card into the slot on the bottom edge.
- Let SteamOS detect and format the card.
- Choose Internal or SD card when installing a new game.
- To move an installed game, open Settings > Storage, select the game, and choose Move.
For many games, a good microSD card works well enough that choosing based on free space is fine. Very large or loading-heavy games may still benefit from internal storage.
Desktop Mode, other launchers, and compatibility
Hold the power button and choose Switch to Desktop to open KDE Plasma, a full Linux desktop. Most gaming does not require it, but it is useful for browsing, file management, and advanced setup.
Desktop Mode can be used to install other launchers such as Epic Games Store or Battle.net through compatibility tools, then add shortcuts back into Steam for Game Mode.
Check Valve’s Deck Verified rating before buying or installing a game specifically for the Deck. Verified, Playable, Unsupported, and Unknown labels tell you whether the game should work smoothly, need tweaks, or fail due to issues such as anti-cheat.
SteamOS updates improve compatibility over time. Check Settings > System > System Update periodically, while giving major releases a short settling period if you prefer fewer early bugs.
Sources
- Valve – Steam Deck Support: Getting Started (2025)
- Valve – Steam Deck Storage and microSD Card Guide (2025)
- Valve – SteamOS Update and Recovery Guide (2025)