What are some alternatives?
When comparing DUSK and Doom, you can also consider the following products
Nomad - Official Nomad Store: Welcome to the official Nomad store. 204 results found for 'en .
Quake - Quake is a series of first-person shooter video games released by id Software.
Live Video On Tumblr - Tumblr's answer to Periscope, Facebook Live and Twitch
Xonotic - Xonotic is a free (GPL), fast-paced first-person shooter that works on Windows, OS X and Linux.
Facebook Live Video and Collages - Show your friends what you’re seeing in real time
Call of Duty - Call of Duty is a first-person and third-person shooter series by Infinity Ward.