HyperRogue website, and also on the ModMyi Cydia repository. Have fun!
NotEye is not dead either -- NotEye 8.0 has been moved to SDL2, and the last closed prereleases of ADOM already use the new version. This makes NotEye work much faster, however, it breaks the compatibility with libtcod (which still uses SDL1), and some of the other games (for a yet unknown reason). So there is some work required to release NotEye 8.0 officially, and I am quite busy now, so this needs to wait. Maybe I will port Vapors of Insanity to NotEye, we will see. In the meantime, please try the new version of PRIME (although it still uses NotEye 7.8). Stay tuned!