Colobot Forum - International Colobot Community

Hello, i have tried colobot from this site - http://www.ceebot.com/colobot/index-e.php, but this is only demo, i must pay for free version... Gold Edition is a full colobot game with all planets missions and exercises available ?

Yes. https://colobot.info/colobot-gold-edition/

Original full version is available on http://blupi.org/ (alongside with other Epsitec games), but unless you won't encounter some serious issues it's recommended to use Gold Edition, it have all features of original game and more.