Survival Vacancy follows a nuclear apocalypse and it's your job to save as many people as possible. To do so you need to explore the ruined world, mine for resources and build up an underground city.
Arriving on Steam in Early Access a few days ago, Survival Vacancy from developer Mind Leak looks intriguing as it really does seem to mix the styles of both Factorio and Terraria. It looks a little rough right now but it has a nice idea.
Currently, the developer has no set time to remain in Early Access but they estimate at least 1-2 years before it's fully ready. They said in the current version is in a "solid playable state" with production lines, automation, survivor management with you fulfilling their needs, resource management, research and more.
They have some big plans for it including adding in fluids, enemies to fight, weapons, different species, biomes and plenty more.