Steam Charts - An ongoing analysis of Steam's concurrent players.
Arcade Trail - Crowdsourced game discovery & curation platform
Steam Database - This tool was made to give better insight into the applications that Steam has in its absolutely huge database.
Rawg - Video game discovery powered by you!
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.
Hidden Gems - Open source ranking of the best games on Steam 🎮