An Intel Core 2 Duo T7250 CPU is required at a minimum to run Perils of Man. The cheapest graphics card you can play it on is an NVIDIA GeForce 6200. Perils of Man system requirements state that you will need at least 3 GB of RAM.
Perils of Man will run on PC system with Windows XP Service Pack 3 and upwards. Additionally it has Mac and Linux versions.
Minimum System Requirements
CPU
2.3 Ghz Intel
RAM
4 GB RAM
OS
Mac OS X 10.6+
Graphics Card
DX9 (shader model 2.0) capabilities
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