I'm currently building a computer and would need a 8*8 screen. Is there some mod for this? I don't know any C#.

Hello! 

 This: post has some information on modding DSL, andmaybe there is one with a screen like that.

If not: there is another version of DSL, Digital Logic Sim 2, which I believe does include a screen component.

I hope this helped!

I posted a mod here that has a 16x9 screen. https://www.mediafire.com/file/fn5zp57jdkwfjhp/Tekra_-_Digital_Logic_Sim_1.0.2.z...