This game is an arena shooter where you have a gun, and you must fend off hordes of börds.
SYSTEM REQUIREMENTS
MINIMUM:
OS: Windows® 7 (32/64-bit)
Processor: 1.7 GHz Processor or better
Memory: 4 GB RAM
Storage: 4 GB available space
https://store.steampowered.com/app/2370660/Brd_Killer/