This is CoreWars!

CoreWars is a procedurally/randomly generated Dual-Stick Shooter similar in mechanics to "Binding of Isaac" and "Enter the Gungeon". There are tons of different weapons which can be used to tackle the engineering inspired enemies you will face.

The main protagonist is a CPU, which "evolves" through the ages of computing and faces different enemies depending on the historical epoch.

CoreWars features randomly dropped weapons of different rarities, some of which have unique effects for their highest rarity!

Also features rebindable controls and achievements which unlock new weapons.