Gomoku Renju is a free puzzle game by 2xD Games available on Android. The game is based on the ancient board game of "GO" and is one of the simpler and more popular versions. Despite its simple rules, Gomoku Renju is a logic board game that is more complex and difficult than Tic Tac Toe. The game offers two different types of gameplay - Gomoku and Free Renju, with different board sizes ranging from 9x9 to 19x19.

The game has four different levels, allowing players to improve their skills from novice to master. Players can use hints to check some good places for their next move and can cancel their previous moves to make better ones. The game also offers autosaving, allowing players to continue their game even after a few days. The statistics feature allows players to see how cool gamer they are. The game has fine sounds and music that can be switched off if needed. Additionally, players can enable/disable some features to make the game more interesting. Overall, Gomoku Renju is a thrilling and challenging game that requires tactical skills and strategic thinking to master.