Travel World is a free Android game developed by xinghong that is perfect for dog lovers who enjoy synthesizing games. As a traveler who journeys around the world, you will encounter and purchase a variety of dogs. By dragging two dogs of the same level together, you can synthesize a dog of a higher level. As you continue to combine more dogs, you will earn points and rewards.

The game is easy to navigate, and the graphics are simple yet charming. The sound effects are minimal but add to the overall experience. One downside is that there is no tutorial, so players may need to figure out the game mechanics on their own. Additionally, there are no subcategories or additional features, so the game can become repetitive after a while. Overall, Travel World is a fun and addictive game for those who enjoy synthesizing games and cute dogs.