What is LiveDOSGames?
LiveDosGames is a free, portable, fast Linux Operating System, which contains old, but legendary Dos games. It's small, so it can be stored on an USB stick, but it doesn't mean that it doesn't contain the everyday, general programs(Media Player, Picture Viewer etc.). If you would miss something(Games, different editors etc.) then with a click you can activate it, and it automatically puts itself to the menu, it doesn't need any installation and configuring.
Yes, that's right! LiveDOSGames is a Linux Distro streamlined and pre-configured with DOSBox and bundled with 78 commercial DOS games (with many more being added soon). It is a fully functioning up to date Linux environment too, and uses a module based system to download and install extra parts into the OS. This is much better than the old Linux mothod of needed to download distribution packages and then compile them for your OS. Now it does this all automatically for you. Might nicer.
And you can run it from a 512MB USB memory stick too, so you could set on up and then do some gaming at work!
Take a look at http://livedosgames.com/