Tentacle Monster 3D is a free puzzle game developed by EM ALL Studio for Android. The game features a monster with long tentacles that is constantly hungry and needs to be fed. The objective of the game is to feed the monster by solving puzzles and unlocking new levels.

Players are presented with a grid of different foods and must connect matching foods with the monster's tentacles to feed it. The game starts off easy but becomes progressively more challenging as players advance through the levels. There are over 100 levels to complete, each with its own unique set of challenges and obstacles.

Overall, Tentacle Monster 3D is a fun and addictive puzzle game that offers a unique twist on the genre. The graphics are colorful and engaging, and the gameplay is simple yet challenging. It's a great choice for anyone looking for a casual game to pass the time.