What are some alternatives?
When comparing Metro Exodus and Quake, you can also consider the following products
Duke Nukem Forever - Duke Nukem Forever is an Action-Adventure, First-person Shooter, Single and Multiplayer video game developed by 3D Realms and published by 2K Games.
Xonotic - Xonotic is a free (GPL), fast-paced first-person shooter that works on Windows, OS X and Linux.
Team Fortress 2 - Team Fortress 2 (TF2) is the sequel to the game that put class-based, multiplayer team warfare on...
Doom - Doom is a science fiction horror-themed first-person shooter video game in which players assume the...
Warface - Warface - is a free online shooter with diverse PVP modes, exciting PVE missions, outstanding arsenal and millions of fans around the world!
Overwatch - Stylized team-based FPS