1. PUBG Mobile: PlayerUnknown’s Battlegrounds (PUBG) Mobile is a battle royale game where players fight against each other to be the last person standing. It offers intense action and a large multiplayer environment.
2. Call of Duty: Mobile: Call of Duty: Mobile brings the popular first-person shooter franchise to mobile devices. It features various game modes, including multiplayer battles and a battle royale mode.
3. Garena Free Fire: Free Fire is another battle royale game where players fight against each other in a shrinking battlefield until only one survives. It offers quick gameplay and has a large player base.
4. Shadowgun Legends: Shadowgun Legends is a first-person shooter that combines elements of action and role-playing games. It features a rich sci-fi universe, cooperative multiplayer missions, and competitive PvP battles.
5. Dead Trigger 2: Dead Trigger 2 is a first-person zombie shooter with stunning graphics and immersive gameplay. Players have to survive the zombie apocalypse by completing missions and upgrading their weapons.
6. Injustice 2: Injustice 2 is a fighting game featuring various DC Comics superheroes and villains. It offers a compelling storyline and intense battles with special abilities and combos.
7. Modern Combat 5: Blackout: Modern Combat 5 is a first-person shooter that focuses on multiplayer battles. It offers a range of weapons, customizable characters, and fast-paced action.
8. Fortnite: Fortnite is a popular battle royale game where players fight to be the last one standing. It features a unique building mechanic that adds an extra layer of strategy to the gameplay.
9. Asphalt 9: Legends: Asphalt 9 is a high-octane racing game with stunning visuals and fast-paced action. It offers a wide selection of cars and challenging tracks.
10. Critical Ops: Critical Ops is a first-person shooter that emphasizes tactical gameplay. It features competitive multiplayer battles and a range of weapons and equipment.

Please note that the popularity and availability of mobile games can change over time, so it’s always a good idea to check the latest game releases and reviews to find the best action mobile games in 2023.