itch.io - An online game marketplace and community.
EVE Online - Player-created empires, player-driven markets, and endless ways to embark on your personal sci-fi adventure.
Ubisoft Club - Ubisoft Club app enables you to get updates about your favorite games timely.
Star Conflict - Star Conflict is a free MMO action game and space simulator that was introduced in 2012.
GOG.com - DRM-free game store, selling both new and old titles. No clients required.
Star Trek Online - Star Trek Online (STO) is a free to play MMORPG that takes place inside the Star Trek world.