An Intel Core 2 Duo E8400 CPU is required at a minimum to run Stargazer. Stargazer system requirements state that you will need at least 4 GB of RAM. In terms of game file size, you will need at least 130 MB of free disk space available. The cheapest graphics card you can play it on is an NVIDIA GeForce 510.
Stargazer will run on PC system with and upwards.