Harness gravity with your crayon and set about creating blocks, ramps, levers, pulleys and whatever else you fancy to get the little red thing to the little yellow thing.
Numpty Physics is a drawing puzzle game in the spirit (and style?) of Crayon Physics using the same excellent Box2D engine. Numpty Physics includes a built-in editor so that you may build (and submit) your own levels.
Available for Linux, Windows and Maemo OS2008, Open Source.
Atmosphir is a free video game / creation tool for Mac & PC. Design mode lets you create enormous 3D platforming levels filled with fun gameplay elements like power-ups and fireballs, while Play mode lets you explore through the thousands of diverse user-created challenges being uploaded every day.
Championship Manager: Season 01/02 is the 10th Anniversary edition of the award winning and record breaking Championship Manager series.
-Detailed profiles and histories for over 100,000 players, managers, and coaches within twenty-six concurrent leagues.
-Full implementation of the new EU regulated transfer system.
-Choose to play in Attribute Masking mode - only the statistics and players a manager would realistically know about are shown.
-Make notes on players, compare two players side by side, and send players away for surgery to repair recurring injuries.
-New interaction with your board -- issue them with ultimatums!
-New interaction with governing bodies -appeal against bans imposed on your players and receive fines from the FA.
-Improved Data Editor allows you to change and modify the stats in the game.
-Enhanced media involvement from the local and national press.