Just Survive is described as '- About Just Survive'. There are three games similar to Just Survive for a variety of platforms, including Windows, Steam, Xbox, Epic Games Store and Linux. The best alternative is Metro Game Series. It's not free, so if you're looking for a free alternative, you could try H1Z1.
Metro 2033 is a survival horror first-person shooter video game, based on the novel Metro 2033 by Russian author Dmitry Glukhovsky. Metro 2033 was developed by 4A Games in Ukraine, and was released on Microsoft Windows and Xbox 360 in March 2010.
The post-soviet country of Chernarus is struck by an unknown virus, turning the majority population into frenzied infected. Fighting over resources has bred a hostile mentality among survivors, driving what’s left of humanity to collapse.