Civ game not responding

I keep getting the spinning round rainbow. The Activity monitor says both game and steam not responding.

Any help here? or do I need to open a ticket with steam?
Hardware Overview:

Model Name: MacBook Pro
Model Identifier: MacBookPro11,3
Processor Name: Intel Core i7
Processor Speed: 2.3 GHz
Number of Processors: 1
Total Number of Cores: 4
L2 Cache (per Core): 256 KB
L3 Cache: 6 MB
Memory: 16 GB
Boot ROM Version: MBP112.0138.B17
SMC Version (system): 2.19f12
Serial Number (system): C02MGDD4FD57
Hardware UUID: C161FC49-710B-554B-B458-909401C17082