In terms of game file size, you will need at least 5 GB of free disk space available. An Intel Core 2 Duo U7600 CPU is required at a minimum to run Lamentum. Lamentum system requirements state that you will need at least 2 GB of RAM. The cheapest graphics card you can play it on is an ATI Radeon 3000.
Lamentum will run on PC system with Windows 7 and upwards.