For Red Alert, there might not be much problems to do it since they made it a freeware[1] years ago and there are already plenty of projects around it.<p>[1] <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Command_%26_Conquer:_Red_Alert#Freeware_release" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Command_%26_Conquer:_Red_Alert...</a>