How to compile the game: 1. Create a subdirectory in \XINU4WIN\NEWSRC, say game md game 2. Download game2.c, clkint.c to \XINU4WIN\NEWSRC\game2 3. cd \xinu4win\newsrc 4. Copy xinu.lib into \XINU4WIN\NEWSRC\game2 5. copy xinu.lib to \XINU4WIN\NEWSRC\game2 copy ..\xinu.lib . 6. Set path path c:\tc\bin;%path% 7. Create clkint.obj and insert it to xinu.lib: tcc -I.. -c clkint.c > errs type errs tlib xinu.lib -+ clkint.obj 8. Compile the game: tcc -I.. game2.c xinu.lib > errs type errs 9. Run the game: game2.exe