Unity3d on a lenovo ideapad with mx linux os

[lilyraimbow00]

Hello.How do i install unity3d on my computer my computer is an lenovo ideapad 110s and the operating system i use is mx linux.One of the reasons i need unity3d is because i play vrchat and im going to create my own models for the game.And will i be able to install a graphics card on my computer?

 

[Cromewell]

MX is Debian based so I imagine download the deb file and use dpkg -I to install it.