They are places where "Z axis" does not exist, only YX reign, the word is unknown 3D, games are simple but should be played, many of them will make us having a good time
Indiedb.com
Steamcommunity.com
Luminesca.com
an underwater exploration game from developer Matt Glanville. The player controls a small creature called Lum through various dark and shadowy environments, using light to solve puzzles and open up new pathways in a cold artificial environment disturbing the once peaceful ocean. You explore to find a new home and confront the source of this alien environment.