Like the graphics, the story and in general the overall experience. The engine seems very badly optimized. On a i5 10600K and RTX 2070 Super there's still parts where I got noticable lag - especially in the latter parts of the game. The later part of the game also seems very very poorly tested. Multiple times when we clicked on items, the main character just ... stopped talking. Had to manually click "play" to play her voice, and then wait about for about 20 seconds of silence until we could rotate the object in question. Also found a very easily spotted and easily reproducible bug which makes you stuck in the ground in the last actual puzzle, have to reload an earlier save - if you save and reload in the ground you start in some void and can't move. Several times the little clickable icon just disappeared as well, a save and reload solved that, so slightly minor. Very annoying when it happened multiple times though. Overall an enjoyable experience, but soiled by not the most solid implementation.