The two fully managed game server machine options are Managed Windows game server and Managed Linux game server.
Windows is the standard, multi-purpose option. Every game type except for Minecraft is available to Windows servers, including BF:BC2, CS:S, TF2, CoD4, and L4D2. For Valve games, the Windows 2003 install supports up to hyperaccelerated (500fps) servers, and the Windows 2008 install supports up to partial ultraaccelerated (1000fps-capped) servers.
The Linux option can be used with regular accelerated, hyperaccelerated, ultraaccelerated, and extreme accelerated servers. It supports only these games:
Team Fortress Classic
Day of Defeat
Half-Life 2 Multiplayer
Team Fortress 2
Day of Defeat: Source
Counter-strike: Global Offensive
Wolfenstein: Enemy Territory
Note that high FPS servers (ultraaccelerated/extreme accelerated) will have a more fluctuating FPS on a VDS than on a full dedicated machine or regular game server with us.