I'm not sure if this is the correct place to post info about a new game, but here goes...
For those who like mind-boggling point & click exploration games with brilliant artwork, I recommend any of Mateusz Skutnik's Submachine series, but especially - Submachine 10 - which is a pay-for, although his latest - Submachine Universe - is available as a free download here...
Mateusz Skutnik - Submachine Universe HD Enjoy... but don't blame me if your brain turns into mushy pink blancmange!
P.S. - his Daymare Town and 10 gnomes series (some pay-for or free play online) are equally difficult.