The Twin Houses is probably the first location that every player found in this game.
Because is the first location, is one of the most basic of all, and in this case is useful to learn how to jump, explore and recollect some useful basic materials.
In this location you can complete your first mission that is "Explore the Twin Houses", in it, your goal is to find the Wrench located in the second floor of one of the houses.
Repair the Broken Pump
Outside of the houses, you can find a Broken Pump that should be repaired.
This is a small side quest and to repair it you just need to press the Action button a few times, after that, you will need a Wrench to full repair the Broken Pump.
Water Sources can be used to drink water and recover your Hydration
Document (Worker - Fugitive)
In one house of the Twin Houses, you can find the document Worker - Fugitive.
There is a Wrench in the second floor of one of the houses (use it to repair the Broken Pump).
Document (Worker - He's watching me)
In the second floor of one of the houses, you can find the document Worker - He's watching me.
Document (Worker - Stalked)
In the first floor of one of the houses, you can find the document Worker - Stalked.