Hello @OMTDesign, please copy your system information from steam (Steam -> Help -> System Information) and put it in a gist, then include a link to the gist in this issue report.
Your video drivers are older than the prerequisites. On the Intel side, you have a haswell, which has an incomplete implementation of vulkan and #65 applies to the nvidia side with the optimus-based laptop.
Yeah there seemed to be an issue with optimus not engaging the GPU. But I don't know what happened but on my third restart Fallout Shelter now opens, and its running fine.

proton 3.7x1 2018-08
Hello.
After launching Fallout Shelter, it immediately crashes and displays a dialogue box pointing to the crash dump file.
My Specs are:
HP Zbook 15
Ubuntu 16.04
Linux Kernel 4.15.0-32
4700MQ Intel CPU
32GB Ram
K2100M Quadro GPU Nvidia driver 384.130
2018-08-23_120748.zip