Megaquarium system requirements state that you will need at least 8 GB of RAM. Provided that you have at least an AMD Radeon HD 7770 graphics card you can play the game. You will need at least 1 GB of free disk space to install Megaquarium. An Intel Core i5-4690 CPU is required at a minimum to run Megaquarium.
Megaquarium will run on PC system with Windows 7 64 bit and upwards. Additionally it has Mac and Linux versions.