Brighton-based developer Relentless Software is closing down after almost 13 years of business.
Company founder Andrew Eades told GamesIndustry.biz that all employees were being made redundant today.
The studio developed numerous games on mobile such as its Murder Files games, as well as its last game, The Trace, which was awarded a Silver Award in Pocket Gamer's review.
Relentless had looked in high spirits when we last heard from Eades at Develop:Brighton 2015, who mentioned that the studio was expanding into VR and back into console at the time.
The company had even planned to open a second studio in Wales to work on Hasbro-related games.
Some of its staff are already finding new opportunities, however. Former CTO Bruce Heather will be taking charge of a new Brighton studio set up by Lockwood Publishing, focusing on VR and AI.