An Intel Core i5-650 CPU is required at a minimum to run Erusal. In terms of game file size, you will need at least 2 GB of free disk space available. Erusal system requirements state that you will need at least 4 GB of RAM. Provided that you have at least an NVIDIA GeForce GTX 765M graphics card you can play the game.
Erusal will run on PC system with Windows 10 and upwards. Additionally it has a Mac version.