Steam and PC gaming are practically synonymous, and for good reason. The platform recently hit a new peak concurrent user record as tracked by SteamDB, so you see how important it is for buying, installing, and playing games on computers and gaming handheld PCs. If you’re new or curious about the ecosystem—or think it’s practically unbeatable—here’s a brief, relatively expert guide to what Steam is and exactly how it operates.
What Steam Is (And Isn’t): A Clear Explanation
Steam is a digital distribution platform and desktop app developed by video game studio Valve Corporation (the same studio that launched Half-Life, Counter-Strike, Portal, and Team Fortress). It’s part game store, part launcher, part social hub. It’s not a cloud gaming service; titles are downloaded and installed locally, though Steam does offer cloud saving, where everything syncs across devices, and you can stream gameplay to another device.
- What Steam Is (And Isn’t): A Clear Explanation
- How the Steam Store and Your Library Work Together
- Platforms, Devices, and Big Picture Mode Overview
- The Community Features You’re Actually Using on Steam
- Steam’s Business Model and Developer Policies Explained
- Security Setup and Getting Started with Steam
- Bottom Line: Why Steam Remains Dominant in PC Gaming

The scale is also difficult for the mind to grasp. Independent trackers list more than 90,000 apps available (tens of thousands of which are games, from indie developers to AAA franchises). Valve’s proprietary year-in-review reports reflect persistent growth in daily playtime and spending, while data tracker SteamDB logged new highs in excess of 33 million concurrent users early this year.
How the Steam Store and Your Library Work Together
Everything resides in two fundamental places: the Store and the Library. You purchase games as well as DLC and add-ons from the Store, after which you install and launch them directly from your Library. Purchases seem to be account-bound, and most titles also support cloud saves, so your progress should follow you from device to device. Steam’s search, tags, and other recommendation mechanisms are designed to surface both niche genres and new releases using a mix of algorithms and community contributions.
Valve has a widely publicized refund program where you can get refunded for most purchases within 14 days and up to two hours of playtime. That player-friendly stance, and periodic events such as the Summer/Winter Sales, make it a very easy “try before you buy” for PC players.
Platforms, Devices, and Big Picture Mode Overview
Steam is available for Windows, macOS, and Linux. Valve also releases SteamOS, a Linux-based OS that runs on the Steam Deck handheld. Big Picture Mode features a TV- and pad-friendly interface for couch play. On mobile, there’s the app you use to chat on Steam, receive notifications, and use other security features, while the Steam Link app streams games from your PC to phones, tablets, and TVs—even some Chromebooks—all connected to the same wireless network.
The compatibility is a success story on Linux and the Steam Deck. Steam Play employs Proton, which is a compatibility layer that allows many Windows games to run on Linux-based systems without the need for porting. There are thousands of “Gold” and “Platinum” results in ProtonDB, a community tracker, and more than 10,000 titles have been verified or made playable by Valve’s Steam Deck Verified program. Anti-cheat support has gotten better as well, with Easy Anti-Cheat and BattlEye getting Proton support when developers flip the switch.
The Community Features You’re Actually Using on Steam
Steam is more than a store; it’s also a social platform. Party chat, voice, in-game overlay, and friends lists help you coordinate. Forums, guides, screenshots, and Broadcasts can be found here. And for modders and tinkerers, Steam Workshop serves up one-click installs of user-generated content on supported games, while the Community Market enables trading in cosmetic items and cards.
Family Sharing allows you to share your game library with other accounts on approved devices, and Family View offers parental controls.

Remote Play Together streams local co-op games over the internet to friends, whether or not they own the game, and Remote Play allows you to stream your game from a more powerful desktop onto a less-demanding laptop screen (or phone).
Steam’s Business Model and Developer Policies Explained
Valve’s standard revenue share is 70/30 for developers, but it drops to 75/25 and then 80/20 after a developer has reached certain lifetime sales thresholds. That structure, combined with built-in support for things like achievements, cloud saves, workshop integration, and robust SDKs, helps explain why so many studios—from solo creators to the largest publishers—ship on Steam or maintain a presence there even if they sell elsewhere.
Curation is increasingly data-driven. User reviews show recent and overall sentiment next to playtime, which gives helpful context. Discovery queues, charts, and genre hubs help to surface trending and well-reviewed titles, while Labs experiments sometimes change how recommendations function. It’s a living storefront, not a static catalog.
Security Setup and Getting Started with Steam
Accounts are free, but you’ll need to load at least a small amount or make a purchase to gain full social capabilities and limit spam. Turn on Steam Guard for two-factor authentication through email or mobile app to protect your account. From there it’s easy enough: you buy a game, download it, and click Play. The Downloads pane also reins in bandwidth restrictions, scheduling, and installation queues—helpful for great big day-one patches.
If you have uninstalled games outside Steam, those can be entered into your Library for a unified launcher (though the vain would-be activator of in-game Steam features is standing here naked).
Controller support is superb: Steam Input remaps your gamepads, keyboards, and mice on a per-game basis, and there are community templates and official profiles for the biggest games.
Bottom Line: Why Steam Remains Dominant in PC Gaming
Steam’s lasting advantage can be summed up in a simple equation: huge catalog plus reliable downloads via the client plus flexible compatibility with your hardware and software plus a frictionless community layer = what competing services must, by definition, try to evolve into or straight-up become. Whether you’re playing on a tower PC, a living-room rig, or finally a handheld (more on that below), Steam continues to be the most comprehensive entryway into PC gaming—and its dominance shows no sign of weakening.
