Steam is the largest PC gaming platform in the world — a free app from Valve where you buy, download and play over 100,000 games, with automatic updates, cloud saves, refunds and regular deep-discount sales. This complete guide covers what Steam is, how buying and activating games works (including Steam keys), refunds, Family Sharing, and how to get the best prices in 2026.
What is Steam?
Steam is Valve's digital distribution platform for PC, Mac and Linux games, launched in 2003. Instead of buying physical discs, you buy games digitally and they're tied to your Steam account forever — you can download them on any PC, anytime, as often as you like. Beyond the store, Steam handles multiplayer, friends lists, achievements, cloud saves, the Steam Workshop for mods, and Big Picture / Steam Deck for couch and handheld play.
The Steam client is free. You only pay for the games (and in-game content) you choose to buy.
How buying games on Steam works
- Create a free Steam account at store.steampowered.com and install the Steam client.
- Add a payment method or Steam Wallet credit — cards, PayPal, or wallet top-ups via gift cards.
- Buy a game — it's added to your library instantly and starts downloading.
- Play anywhere — log into Steam on any PC and your whole library is there.
Steam keys: buying games cheaper
A Steam key (or CD key) is a code that adds a game to your Steam library, sold by third-party stores rather than directly by Steam. Because key stores price games independently, Steam keys are frequently cheaper than the Steam store price — especially for new releases and back-catalogue titles.
To redeem a key: in the Steam client, go to Games → Activate a Product on Steam, enter the code, and the game is added to your library exactly as if you'd bought it from Steam directly. Keys are region-locked, so always match the key's region (Global, Europe, Latam…) to your account.
DigitalTools sells genuine Steam keys with instant email delivery and an activation guarantee — discounted below Steam store prices across thousands of titles.
Steam sales and getting the best prices
Steam runs four major seasonal sales a year — Spring (March), Summer (late June), Autumn (Thanksgiving week) and Winter (late December) — plus shorter themed "Fest" events. Discounts typically reach 50–90% on back-catalogue games and 10–50% on recent releases. The single best habit is to wishlist games: Steam emails you the moment a wishlisted title goes on sale. See our dedicated guide on when the next Steam sale is for the current calendar.
Steam refunds
Steam offers one of the most generous refund policies in gaming: you can refund any game within 14 days of purchase and under 2 hours of playtime, for any reason, straight from your account's help page. Refunds go back to your original payment method or Steam Wallet. This makes trying a game essentially risk-free.
Steam Family Sharing
Steam Families lets up to 6 people share a game library. Family members can play your games on their own accounts — with their own saves and achievements — as long as you're not playing the same title at the same time. It's the legitimate way to share games within a household, no account-sharing required.
Steam Deck
The Steam Deck is Valve's handheld gaming PC that runs your Steam library on the go via SteamOS. Any game marked "Deck Verified" or "Playable" works on it. If you're considering one, see our Steam Deck LCD vs OLED comparison.
