Pufferpanel - It's made for hosting your Minecraft server. It's open source.
Droplr - Droplr is a tiny application that aims at helping people share things easier.
Pterodactyl - Pterodactyl is the free game server management panel designed by users, for users.
ConnectWise Control - ConnectWise Control is a mobile app that allows you to instantly connect with another system from anywhere with a connection to the internet. The software not only comes in a mobile app, but it has a desktop version as well for complete coverage.
Open Game Panel - OGP is a game server control panel.
OBS Studio - Free and open source software for video recording and live streaming for Mac, Windows and Linux.