Giant Squid: Underwater Adventure is a simple and addictive one-handed underwater game where you have to control a giant squid and eat all the fish in the sea. The squid can only grow by eating, and you can unlock new types of fish to eat by collecting coins. The more you eat, the more you grow and the bigger you get, and the more powerful you become. 

The game also has an underwater background and some cool fish like plankton, small fish, whale, etc. 

This is a simple game to play with simple gameplay. 

In Giant Squid: Underwater Adventure, you can play the game either with one hand or two hands, and it's totally free to play.