Yea Chess is a very simple, yet compelling chess game for free download. It was made by a Croatian developer Drazen who specializes in logic games. In Yea Chess you can play only against computer, adjust his skills and save your games. Beware of the computer, errgh, green dragon!
To cite it's creators website, Xenowar is a "turn based tactical alien blasting game for Android and the PC". Best of all, Xenowar is heavily inspired by the X-COM (UFO: Defense/UFO: Enemy Unknown/Laser Aquad) classics, in a very similar manner as UFO: Alien Invasion. And it's available for free download! Don't hesitate.
Sudoku is quite a special logic game. Sudoku X is even more special. This small free for download game for Windows 2000/XP/Vista/7 (32-Bit/64-Bit) adds an extra X pattern to make itself even more challenging. Meaning, numbers in the diagonals mustn't repeat.
Super Mario Bros. 3 Editable is a free for download PC version of the NES and SNES classic Nintendo game. What's more, it is fully customizable. The gamer can create new levels, worlds, change the sprites and sounds to make his own Mario Bros. experience! Super Mario Bros. 3 Editable is a classic platformer for long winter nights and fun summer afternoon parties!
There shouldn't be any man on this Earth not knowing what Counter-Strike is. This is a must. Great gals from Germany decided they want their own Counter-Strike. They want it to be 2D and they want it free and they want everybody to download it. And so... Counter-Strike 2D there is! Feel free to enjoy this great multiplayer shooter in just two dimension instead of ordinary three.