OverWolf Is Same as "Xbox Game Bar" but it's WAYYYYYYY smoother! It's perfect for low-end-pc so "Xbox" works fine on high-end pcs and "OverWolf" works good on low-end pcs, don't ask me about mid-end pcs lol..
Xbox Game Bar - A customizable gaming overlay built into Windows 10 👾
GamerGoal - GamerGoal is a community that makes it easy for gamers to find and share guides, tips, easter eggs and collectibles.
OBS Studio - Free and open source software for video recording and live streaming for Mac, Windows and Linux.
Shou.TV - Stream your iOS/Android gaming sessions like Twitch.
Nvidia ShadowPlay - ShadowPlay
Exophase - Track your PSN, Xbox, Steam, Origin, and Blizzard activity