Issues we face in this 2018

that tetris battle royal thing, any number of turn based strategy games turned to reasonable graphics, vanilla or VERY lightly modded minecraft with the right settings, a number of indy games like vagante or convoy or ftl

Pong?

Old games like Diablo II, Age of Empires 2, 3

Nes. Snes. N64. PS1

Try going to armorgames.com, miniclip.com, or nitrome.com

Probably anything made more than 10 years ago. Plenty of new indie games too.