Platinum Arts Sandbox - Free 3D Game Maker Forum

I click it, opens the batch file, but closes right away. Doesn't even start

Technically, Kart mode doesn't exist in 2.5 even though there is a batch file. If you download the SVN however, there is a working Vehicle Simulator (which I hear is really good)! You might want to try that out
Obtaining the Development Version

Arcones

Thanks Arcones

No problem.