The cheapest graphics card you can play it on is an AMD Radeon RX 550. Futhermore, an AMD Radeon RX Vega is recommended in order to run NeptuneGL with the highest settings. NeptuneGL system requirements state that you will need at least 1 GB of RAM. Additionally, the game developers recommend somewhere around 2 GB of RAM in your system. An AMD FX-6300 Six-Core CPU is required at a minimum to run NeptuneGL. However, the developers recommend a CPU greater or equal to an AMD Ryzen 5 PRO 1600 to play the game. You will need at least 1 GB of free disk space to install NeptuneGL. By contrast, the game developers recommend somewhere around 2 GB of free disk space on your system drive.
NeptuneGL will run on PC system with Windows 7 and upwards.
