How to activate a Steam key step by step (2026)

You’ve bought a Steam key on Eneba, Kinguin, or Instant Gaming and now you need to activate it. The process is very simple — it won’t take you more than 30 seconds.

Method 1: From the Steam client

1. Open Steam on your PC
2. Click “Games” in the top bar
3. Select “Activate a Product on Steam…”
4. Accept the Subscriber Agreement
5. Paste your key (format XXXXX-XXXXX-XXXXX)
6. Click “Next”
7. The game will be added to your library

Method 2: From the browser

1. Go to store.steampowered.com/account/registerkey
2. Sign in with your Steam account
3. Paste your key in the field
4. Click “Continue”
5. Done — the game will appear in your library

Common errors

”Invalid product code”

• Check that you copied the key correctly, with no extra spaces
• Verify that the key is for Steam (not for Epic, Origin, etc.)

”Product code already used”

• The key has already been redeemed. Contact the store where you bought it for a replacement

”This product isn’t available in your region”

• The key is for another region. Make sure you buy “Europe” or “Global” keys if you want maximum compatibility
• On KeyPrice.es you can filter by region to avoid this problem

Where to buy cheap Steam keys?

Compare prices across 6 different stores and find the cheapest key for any game. Search games →