Films and Shows like Saw/Death Bell

Hullo~

I was wondering if anyone knew of any other films/film series/tv shows that are similar to the American Saw franchise or S. Korean Death Bell; the whole trapped and needing to do puzzles to survive. I can't seem to find anything other than everything taking me back to the Saw franchise; any country is fine, I'm not picky if it fits the subgenre, but would prefer Asian horror~

Many thanks