What are some alternatives?
When comparing Dotabuff and GameHub, you can also consider the following products
Tracker.GG - Track user stats from CSGO, Destiny 2, COD
Lutris - Lutris is an open source gaming platform for GNU/Linux.
Idle Master - Idle Master is an application that automatically idles your Steam games to extract all your available Steam Trading Cards. The application finds the games you have drops remaining in until all of your trading cards are in your inventory.
GOG Galaxy - Truly gamer friendly, DRM-free online gaming platform.
War Thunder - War Thunder is a Free-to-play, WWII, Massively Multiplayer Online, Military-themed, Strategy, and Combat Simulation developed and published by Gaijin Entertainment.
hypetraq - Find out the most watched video games on Twitch and most played video games on Steam right now!