Are there simple games in C?

Question

C++ / C#

Are there simple games in C that you can take apart and create yourself? It's on C. The easiest games.

Answer 1

Q3 Arena - if 3D.

Answer 2

An example of tic-tac-toe (not mine, didn't check):
www.c-cpp.ru/books/primer-programmy-igry-v-krestik... The
question is a bit unclear, do I need graphics or not?

Answer 3

Tetris, Sokoban, Pacman
these games are very ancient.
full of implementations in C.