I personally was, and am still a fan of the commander keen series. Biomenace was also gold. Its funny that fan-made releases still date to 2013. They even made a trilogy commander keen 7 to 9. Beautifully crafted pixel art games.
I play theme hospital and colonization on DoS box every now and then. Fun times. Even play Pirates Gold some times too.
Of course mate, that's my childhood in a nutshell! My list would be too long if I wrote everything down but the first game that came to my mind was actually Micro Machines. I played it alot as a kid