outlawauron said:

Can you edit that into the OP?

50k seems meh for City Shrouded in Shadow. Although, it doesn't seem to be very big budget.

Very small budget, equally small company.

This is basically the 絶対絶命都市 (Zettai Zetsumei Toshi / Disaster Report / Raw Danger!) series (but with monsters). These Granzella guys are probably from Irem software.

Zettai Zetsumei Toshi 3 : Damaged Town and Her Song 

Raw Danger!

Disaster Report

"It was supposed to be followed by a 2011 PS3 sequel titled Zettai Zetsumei Toshi 4: Summer Memories, though the release was cancelled due to the 2011 Tōhoku earthquake and tsunami."

Granzella is working on releasing ZZT4 on PS4 at the moment.