VMware Player is a virtualization software package supplied free of charge by VMware, Inc
Ranked in these QuestionsQuestion Ranking
Pro Works well and fast with Windows host and Linux guest
Pro 3D graphic support
Not sure about games but WebGL works ok.
Pro Microsoft VM support
Also supports Microsoft Virtual Server virtual machines or Microsoft Virtual PC virtual machines.
Pro User friendly
Somewhat more user friendly than VirtualBox.
Con Not open source
Which means having to install their intrusive tools manually on guest linux vms.