Steam Inventory Helper - Steam Inventory Helper is a free browser extension for Google Chrome that adds a big amount of new features into the Steam trade-offer system & Steam store functionality.
Neff Box - A Star Wars Rogue One collector's box
Augmented Steam - Enhanced Steam fork by IsThereAnyDeal.
Xbox Game Pass - Subscription model for gaming on the Xbox One
Steam Tools Hub - A set of Steam related WebApps built around trading cards, emoticons and backgrounds.
Fountain Greetings - Handwritten cards. Curated gifts. Right at your fingertips.