CHEXS system requirements state that you will need at least 1 GB of RAM. In terms of game file size, you will need at least 200 MB of free disk space available. An Intel Pentium 4 2.00GHz CPU is required at a minimum to run CHEXS. The cheapest graphics card you can play it on is an NVIDIA GeForce 6200.
CHEXS will run on PC system with Windows XP/Vista/7/8/10 and upwards. Additionally it has a Mac version.