Settlement Survival is described as 'In this city-building game, you will lead a group of survivors in their search for a new home. Manipulate the landscape, manage limited supplies, plant crops, hunt wildlife, gather resources, and develop trade routes to build a bustling and unique town' and is a city building game in the games category. There are seven games similar to Settlement Survival for a variety of platforms, including Windows, Steam, Mac, Linux and iPhone apps. The best Settlement Survival alternative is RimWorld. It's not free, so if you're looking for a free alternative, you could try Dwarf Fortress. Other Settlement Survival like games are Banished, Caesar, Frostpunk and The Settlers.
Graphically they are very contrasting. But gameplay wise, if you're looking for a similar experience to Banished, it doesn't get any closer than Settlement Survival. I dare say it's Banished 2 with how much it expands upon and the amount of depth it brings compared to it's predecessor.