green stripes cover half of the main menu screen

Your mac is too old to play the game

Awww....Even it's expected, still frustrated to hear that. I can play rimworld just fine. I guess not a lot of people play this game with 7 years old machine huh.

Technically speaking, some PCs from 2010 are able to play the game. You got a mac so you get older hardware.

Key point is DirectX 11 support and amd/ati had support since end of 2009, nvidia 2010. Intel doesn't get support until like 2012. 

 

So if you had a 7 year old PC you'd prob be playing right now. 

mine is doing this too and it's a brand new mac

could it be the directX problem?

13 minutes ago, athenadark said:

mine is doing this too and it's a brand new mac

could it be the directX problem?

Exact model please