Sage 3D system requirements state that you will need at least 512 MB of RAM. The cheapest graphics card you can play it on is an NVIDIA GeForce 510. An Intel Pentium 4 2.00GHz CPU is required at a minimum to run Sage 3D. You will need at least 80 MB of free disk space to install Sage 3D.
Sage 3D will run on PC system with Windows XP and upwards.