Is there a program which help in examing the code of program example game code?

Question

If i download a game and i would like to see the code for which its been built in?

Answer 1

Lint?

Answer 2

For you own games, you have whatever linter in the code or debugger and console for checking thing on runtime. For other games, if given the source code or there is easy modding available, you just need to figure out what it was written in and check through that engine or framework.