It's a pain I can't find out how to if u know please tell me what program to use
the program audacity.
It depends on what you want to make.
Yes. You can make a game engine with a game engine and sell it for money, it does not need to be free?.
There are plenty of free programs out there that will let you make a tycoon game. None of them are any easier than Roblox though (that's about as easy as it gets). You could try Game Maker; it's a free program that lets you build 2d games. There's also a payed version that includes limited support for 3d games.
Try the free version of game maker.
you just go to hybertext
Linux Multimedia Studio.
www.yoyogames.com/make
SketchUp is a 3D modeling program that can be used in architectural, civil, mechanical and in film and video game design. It is offered as a free program or you can purchase the "professional" versions. It is offered by Trimble Navigation Ltd.
Use a game making program or ask Wizet or Nexon!!
You can use the free unzip program like winrar or win zip that has a trial period that you can use for free and unzip your files or make an archive for use.