If you liked Survivalist you'll probably like Invisible Strain even more ːsteamhappyː It has the same basic mechanics - talking to anyone you meet, recruiting survivors, building a base, battling the infected and human enemies, online co-op, etc.

But there are a huge number of improvements and new features! Much better graphics, a new third person view, stealth, melee weapons, hunting rabbits, chopping down trees, building fires to keep warm, setting traps, skinning dead bodies and throwing the meat to attract zombies, lots of choices besides combat! And of course there's the scary new invisible strain itself. It currently takes place on a randomly generated world map, so there's a huge amount of replayability. I'm going to be writing a story mode while it's in early access.

https://store.steampowered.com/app/1054510/Survivalist_Invisible_Strain/

I've been working on this since about 2016, it has been in beta testing for almost a year and it'll continue to be worked on for at least that long again I expect as I need to write the story mode. Buy it and help shape the development over the next year or so! And there's a launch discount if you buy it this week.

https://youtu.be/oziHsAsiVBk