No, I mean a Demo from the Visionair Studio, because I dont want to pay 35 Euro.
hmm the freeware version is free & the link is on the page I linked to you. the demo comes with the freeware version.
the difference between the freeware & paid version of Visionaire Studio is that you can not compile your project/game into a playable executable (.exe) for other people to play unless they install Visionaire Studio as well & you are willing to share your .ved project file & resources for your game.
Anything you make in the freeware version will work in the paid versions of Visionaire, for when/if you decided to upgrade.