trying to remember the name of a game series?

[Katra]

its a web browser game, there's more then 1 of it think like 5? or something. its a point and click game, its a game where your trapped somewhere and you have to use stuff that you find and take to activate doors and stuff like that. I remember the first one having like 2 dragon head satues in it and at the end you find some weirdo floating diamond stone? and in one of them your on this tower, and everytime you solve a puzzle you activate a machine and it takes you further down untill you find a note that tells you how to get out. i wanna remember it cuz i'm pretty sure theres another one comin out soon or it has come out