What are some alternatives?
When comparing Facebook Live Video and Collages and GZDoom, you can also consider the following products
Periscope on Twitter for iOS - Stream live video inside your tweets
Alien Swarm - Alien Swarm is a F2P, Co-op, Alien, Top-down Shooter, Single and Multiplayer video game developed and published by Valve Corporation.
Live Video On Tumblr - Tumblr's answer to Periscope, Facebook Live and Twitch
Doom - Doom is a science fiction horror-themed first-person shooter video game in which players assume the...
Kickflip - add live video broadcasting to any app (iOS / Android SDK)
AssaultCube - AssaultCube is a FREE multiplayer first-person shooter game. Taking place in realistic environments, with fast, arcade gameplay, it's addictive and fun!