It's out now, anyone know if it's worth playing nowadays?
I just finished it, took me around 15 hours. I really liked it, but you have to be in the right mood for it, and it is definitely not for everyone, because this game is very slow-paced with lots of walking. But for me this just enhanced the sombre, melancholy atmosphere which was just great and next to the great visuals the main attraction of the game.
I really loved exploring this magic school with its insane architecture. The puzzles are more often of the "stay here and figure out magical device" variety than inventory puzzles and range from simple to clever to obnoxious to infuriating (at the end), but luckily there is a built in hint-system that gives out more and more concrete hints and even a very detailed map. The game feels strangely old-school puzzle-wise and very modern design-wise.
The story is very minimalistic, but still manages to surprise you now and then.
The music, voice acting and especially the graphics hold up very well thanks to the fantastic art direction. Make sure to enable antialiasing by editing the following lines in <Steam Folder>\steamapps\common\Keepsake\res\config\opengl.cfg
default:
Video.OpenGL.EnableBilinearMap = no
Video.OpenGL.SharpenMipmaps = 0
Video.OpenGL.TextureFilterAnisotropy = 1.0
Video.OpenGL.MultiSamples = 0
improved:
Video.OpenGL.EnableBilinearMap = yes
Video.OpenGL.SharpenMipmaps = 100
Video.OpenGL.TextureFilterAnisotropy = 2.0
Video.OpenGL.MultiSamples = 6
Although "SharpenMipmaps" may create undesirable edge artifacts, so I turned that off again, YMMV.
Edit: Before I forget: The game crashed a few times, so make sure to save regularly.