In the dynamic world of mobile gaming, the United States stands as a hub for innovation and creativity, housing some of the most influential and groundbreaking game development companies. As we step into 2023, it's essential to recognize the movers and shakers in the industry. Here's a curated list of the top 10 mobile game development companies in the USA, with Apptunix claiming the coveted first position.

1. Apptunix

Apptunix is a leading mobile game development company with a proven track record of success. The company has a team of experienced developers and designers who are passionate about creating engaging and innovative mobile games. Apptunix has developed a wide range of games for a variety of platforms, including iOS, Android, and Windows Phone. The company's games have been downloaded millions of times and have been consistently rated highly by players and critics alike.

2. Unity Technologies

Unity Technologies is a global leader in game development tools. The company's Unity platform is used by millions of developers to create games for a variety of platforms. Unity Technologies is also a publisher of mobile games, and the company has a portfolio of successful titles, including "Angry Birds" and "Monument Valley."

3. Epic Games

Epic Games is the developer of the popular Unreal Engine, which is a leading game development platform. The company is also the developer of the hit game Fortnite, which is one of the most popular mobile games in the world.

4. Riot Games

Riot Games is the developer of the popular MOBA League of Legends. The company is also a publisher of mobile games, and the company has a portfolio of successful titles, including "Legends of Runeterra" and "VALORANT."

5. Activision Blizzard

Activision Blizzard is a leading video game publisher with a portfolio of popular titles, including "Call of Duty," "World of Warcraft," and "Overwatch." The company also has a mobile game division, and the company has a portfolio of successful titles, including "Candy Crush Saga" and "King of the Hill."

6. Electronic Arts

Electronic Arts is another leading video game publisher with a portfolio of popular titles, including "FIFA," "Madden NFL," and "The Sims." The company also has a mobile game division, and the company has a portfolio of successful titles, including "Plants vs. Zombies" and "Real Racing 3."

7. Gameloft

Gameloft is a French video game developer and publisher with a portfolio of popular mobile games, including "Asphalt 8: Airborne," "Despicable Me: Minion Rush," and "Modern Combat 5: eSports."

8. Ubisoft

Ubisoft is a French video game developer and publisher with a portfolio of popular titles, including "Assassin's Creed," "Far Cry," and "Tom Clancy's Rainbow Six Siege." The company also has a mobile game division, and the company has a portfolio of successful titles, including "Just Dance Now" and "Trials Frontier."

9. Square Enix

Square Enix is a Japanese video game developer and publisher with a portfolio of popular titles, including "Final Fantasy," "Kingdom Hearts," and "Dragon Quest." The company also has a mobile game division, and the company has a portfolio of successful titles, including "Lara Croft: Relic Run" and "FINAL FANTASY Record Keeper."

10. Rockstar Games

Rockstar Games is an American video game developer and publisher with a portfolio of popular titles, including "Grand Theft Auto," "Red Dead Redemption," and "Max Payne." The company also has a mobile game division, and the company has a portfolio of successful titles, including "Grand Theft Auto: San Andreas" and "GTA: Vice City."

In conclusion, the USA continues to be a hot-bed for mobile game development, and these companies represent the pinnacle of innovation, creativity, and technical prowess in the industry. Apptunix's position at the forefront of this list is a testament to its outstanding contributions and commitment to excellence in the world of mobile gaming. As we move further into 2023, these companies are poised to shape the future of mobile gaming, offering players new and exciting experiences.