The PS4 fan becomes super loud on Spacelords as recently as 12/6/2018 (last play session). Been having this occur consistently since I started playing a few months ago. Many times it is not even during gameplay, but in the home screen, loading screen, hideout screen, etc. The only game of my ps4 game library that equals it noise-wise is the latest God of War.
Not sure if the space guilds update will fix this, but if not, my suggestion is to decrease its strain on console hardware in future patches.
I am sure you guys know already, but just want to raise more awareness.