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Steam is where most gamers come to buy and play computer games. Steam is a video game digital distribution service by Valve. The software can be used to both buy and launch games, it also packs social features allowing you to make friends and play games with or against them. The Steam platform can also be used by game developers and publishers to launch and sell games to users of the platform.

Epic Games Store is marketplace for digital games. The Epic Game Store is availible via the browser or within the Epic Games launcher. Developers who release games within the store receive 88% of the revenue generated from the game, which is drastically better than other stores.  This help developers sustain their business model, and ultimatley create more or better games. 

Lutris is a free and open-source, Linux-based operating system developed for gaming. With Lutris you can manage your game library, and install and launch games with no setup. Lutris is integrated with GOG, Steam, Battle.net, Origin, Uplay and many other games stores. The operating system is released under the GNU General Public License and is community built, anyone is free to contribute and use the platform.

Origin is a game distribution platform developed by Electronic Arts used for purchasing and playing video games. With Origin you can play the latest EA RPGs, Shooters and Sims games.

GameHub is a games library manager that allows you to view, download, install, run and uninstall games from Steam, GOG, Humble Bundle, Humble Trove and more. It supports non-native games and native Linux games alike. GameHub also supports multiple compatibility layers for non-native games including Wine / Proton, DOSBox, RetroArch, ScummVM. While at the same time allowing you to add custom emulators.

Desura is an online games platform that was launched by DesuraNET in 2010, and then bought by Linden Lab, after what being acquired by Bad Juju Games, which collapsed in June 2015. In October 2016, Desura was acquired by Danish online subscription rental company OnePlay with the intention of relaunching Desura.

With GOG Galaxy you can organize your games across platforms into one functional and beautiful library. The software allows you to import all your games from PC and consoles, build and organize them into one master collection. Within the user interface you can keep track of all your achievements, hours played and games owned, combined across platforms, and install and launch any PC game you own, no matter the platform.