Build own community
Possibly add a way to designate somewhere as 'home' this could then be used as your base of operations. To make this more useful you can then also implement the feature of making friends, you then invite them to build a community together and that person then comes back to the designated 'home' and lives there with you as an independent person that you can interact with and can work with. Maybe allow the designating of roles such as hunter, looter, cooks etc.
You could have the concept of 5 people living within each tile so that when you reach five people in your 'home' it then spreads to a new hex that is connected to the 'home' hex. So when you have 6 people you have 5 people in the 'home' hex and then 1 other person in a hex next to you.
Collecting resources could be used to craft items, you could also develop where you live such as building log cabins or fixing the place up a bit, for example, the Cryo Facility, repairing the window and instead using the door. Each different character could have a different set of traits which would mean that they could do other things that you could perhaps request of them. For example if you have the materials and someone has the mechanic skill they could fix the vent in the Cryo Facility.
You could build defences against looters and others and have them nearby allies fight with you.
Just some possible changes that could make this game a lot more fun for me, please leave your feedback. :)