Rumble Box is a great freeware beat em up game which uses characters made of cubes and balls. Controls are pretty easy to figure out. Use the arrow keys to move your character, double tab forward for a dash, press the spacebar to hit and use Control to grab. The enemies enter the level through doors that appear in the walls that limit the box that you are fighting in. Defeated enemies stay in the level dispelled in the objects that they were composed off.
101 freeware games
1up.com released a list of 101 great freeware games all sorted in categories like Arcade, Strategy and Shooters. Every game has a short description about its content and a link to the homepage of the producers. Everything is free to download and play of course, you will need a full priced game like halflife 2 for some mods.
