An Intel Core 2 Duo E4700 CPU is required at a minimum to run Gun Crazy. Whereas, an Intel Core i5-5287U is recommended in order to run it. Provided that you have at least an NVIDIA GeForce 510 graphics card you can play the game. Gun Crazy system requirements state that you will need at least 4 MB of RAM.
Gun Crazy will run on PC system with Windows 7 or higher and upwards.