What is a Steam key? Everything you need to know

If you’re new to PC gaming, you’ve probably heard about “Steam keys” or “CD keys”. Here’s everything you need to know.

What is a Steam key?

A Steam key is an alphanumeric code (e.g. XXXXX-XXXXX-XXXXX) that, when entered into Steam, adds a game to your library permanently. Think of it as a gift code that unlocks a game.

Is it the same as buying on Steam?

Yes. The end result is identical. Whether you buy the game directly on Steam or activate a key, the game shows up the same way in your library. There’s no difference in the game itself.

The difference is in the price — third-party keys are usually cheaper than buying directly on Steam.

Where do the keys come from?

Keys are generated by the game’s publisher or developer. Sellers obtain them from:

• Authorized distributors — bulk purchases at a discount
• Regional deals — taking advantage of lower prices in certain countries
• Bundles — when a game appears in a pack, leftover keys get resold
• Promotions — keys from events, trade shows, or launches

Is it legal?

Yes, completely. Buying and selling Steam keys is legal. You’re purchasing a legitimate license to play the game. It’s not piracy.

Is it safe?

Yes, if you buy from reputable stores:

• Eneba — marketplace with buyer protection
• Kinguin — marketplace with Kinguin Guard
• Instant Gaming — direct European store
• G2A — the world’s largest marketplace

How do I activate a key?

1. Open Steam
2. Go to “Games” → “Activate a Product on Steam…”
3. Paste your key
4. Done

Full activation guide →

Where to buy cheap keys?

Compare prices across 6 stores and find the cheapest key for any game.

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