Gavin Costello - is a video game programmer. Gavin Costello began his career in 2017 and has worked for companies such as Ninja Theory and Microsoft Game Studios. Gavin Costello's first game was Hellblade: Senua's Sacrifice which was released 6 years ago. Best Game Gavin Costello contributed to was Senua's Saga: Hellblade II. Gavin Costello's latest work is Hellblade: Senua's Sacrifice which was released 6 years ago.