PC Game Launchers Compared: Steam, Epic, GOG, and More

PC game launchers are the gatekeepers of the modern gaming library — the software that handles purchasing, downloading, updating, and launching titles on Windows and other desktop platforms. Steam, Epic Games Store, GOG, EA App, Battle.net, and Ubisoft Connect each operate under different business models, offer different ownership terms, and serve different audiences. Knowing what sets them apart matters whether someone is building a new library from scratch or deciding where to buy a specific title.

Definition and scope

A PC game launcher is a client application that authenticates a user account, manages a game library, delivers software updates, and — in most cases — enforces DRM (digital rights management) that requires the launcher to be running for games to start. The term covers everything from platform-agnostic storefronts to publisher-exclusive portals.

The landscape has consolidated around a handful of dominant clients. Steam, operated by Valve Corporation, reported over 132 million monthly active users as of 2023 (Valve Steam Hardware & Software Survey) and hosts more than 50,000 titles — a figure that makes it, by catalog size, the largest single PC gaming storefront in operation. Epic Games Store, launched in December 2018, built its early user base partly by offering free games weekly and taking a 12% revenue cut from developers compared to Steam's standard 30% (Epic Games Store FAQ). GOG, operated by CD Projekt, occupies a distinct niche: it sells games without DRM, meaning purchased titles run without any launcher running at all.

For anyone thinking through the full scope of PC gaming as a platform, launcher choice is one of the first practical decisions that shapes the long-term library experience.

How it works

The core mechanism is consistent across clients: a locally installed application connects to remote servers to verify account credentials, check for updates, and enforce license entitlements. From there, the implementations diverge.

Steam uses the Steamworks SDK, which developers integrate to access achievements, cloud saves, matchmaking, and workshop mod tools. Steam's offline mode allows play without an internet connection after initial authentication, though some games require periodic online verification.

Epic Games Store is built on the same Unreal Engine infrastructure Epic uses internally. Its social features are lighter than Steam's — no user reviews, no forums — but it offers cross-platform friend lists and supports Epic's free game program, which as of 2024 has distributed over 400 free titles since launch (Epic Games Store free games archive).

GOG Galaxy is optional. The storefront itself is DRM-free, so an installer downloaded directly from GOG produces a game that runs without any client. Galaxy adds convenience — automatic updates, achievement tracking — but removing it doesn't lock a user out of their games. That's a structural distinction that no other major launcher replicates.

EA App (which replaced Origin) and Ubisoft Connect are publisher-exclusive portals. They exist primarily to distribute first-party titles — FIFA, Madden, Battlefield on the EA side; Assassin's Creed, Far Cry, Rainbow Six on Ubisoft's. Both require their respective clients to run EA and Ubisoft titles regardless of where the game was purchased.

Battle.net, maintained by Blizzard Entertainment, serves a narrower catalog: Diablo, World of Warcraft, Overwatch, and a few partner titles. Its design reflects its audience — dense social infrastructure, integrated voice chat, and launcher-level mod management for supported titles.

Common scenarios

Three situations drive most launcher decisions:

  1. Building a primary library — Steam's catalog depth and feature maturity make it the default starting point for most PC gamers. Community reviews, workshop modding, remote play, and family sharing are all built-in. The pc-gaming-software-essentials page covers Steam's role alongside other foundational tools.

  2. Chasing free games — Epic's weekly free game program has included titles with retail prices of $30–$60. A user who claims every free offering consistently accumulates a substantial library at no cost.

  3. Owning games without dependency — For players concerned about what happens to their library if a service shuts down, GOG's DRM-free model is the only mainstream option that guarantees playability regardless of server status or company viability.

Decision boundaries

The choice between launchers usually comes down to four variables:

  1. Catalog coverage — Some titles are platform-exclusive. Destiny 2 requires Steam. Fortnite requires Epic. Older Ubisoft titles bought anywhere still require Ubisoft Connect to launch.

  2. Ownership model — Most launchers sell a license, not a file. GOG is the exception. If the distinction matters — and for long-term library preservation, it does — GOG is the only storefront where "buying" a game approaches the traditional software ownership model.

  3. Social and community features — Steam's ecosystem of reviews, forums, and workshop content has no equivalent. Epic, EA App, and Ubisoft Connect have thinner community infrastructure.

  4. Pricing and sales cadence — Steam's seasonal sales (Summer Sale, Winter Sale) are predictable and deeply discounted. Epic's free game program offers zero-cost acquisition. GOG runs competitive sales and occasionally offers exclusive DRM-free versions of older titles unavailable elsewhere.

Practically speaking, most PC gamers end up running 3 or 4 launchers simultaneously — not by preference, but because the catalog is fragmented across storefronts. Tools like GOG Galaxy's "Connect" feature attempt to aggregate multiple libraries into a single interface, which is an honest acknowledgment of where the ecosystem actually stands.

For newer players, the pc-gaming-for-beginners page provides broader orientation. For those tracking costs across platforms, pc-gaming-costs-and-budgeting examines how launcher choice intersects with overall spending. The /index covers the full range of topics across this reference.

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