Games Like Universe Invader 2: Alien War

Transmute 2: Space Survivor is a portrait-mode shoot 'em up where players battle waves of enemies in space. The game features a loot-driven progression system that encourages repeated play to acquire better gear. Its challenging gameplay and short, interruptible sessions make it suitable for quick bursts of action, though some players feel aggressive monetization can be a factor.

WindWings: Multiverse Shooter is a landscape-oriented space shooter where players pilot a ship through waves of enemies. The game features intense, fast-paced action and offers competitive online modes. Progress can require significant grinding, and some players feel in-app purchases are necessary to overcome challenges.

Galaxy Attack is a classic vertical scrolling shoot 'em up where players pilot a spaceship to battle alien invaders. Players must dodge enemy fire and destroy waves of enemies to progress through increasingly challenging levels. The game features a strong emphasis on upgrading ships and equipment to overcome difficult bosses and achieve high scores.

Galaxy Shooter: Air Force War is a vertical shoot 'em up where players pilot a spaceship, blasting waves of alien enemies. The game features loot-driven progression and high replayability, allowing for short, one-handed play sessions. Its intense action and focus on combat make it a challenging solo experience.

Transmute: Galaxy Battle is a landscape-oriented, solo shoot 'em up game featuring intense, fast-paced action. Players engage in challenging progression and ship customization, with high replayability driven by upgrades. The game is best suited for those who enjoy demanding gameplay and a focus on combat mechanics.

1945 WarGuard: Sky Shooter is a fast-paced arcade shoot 'em up where players pilot a plane through waves of enemies. The game features intense aerial combat and a variety of aircraft to unlock and upgrade. Its portrait orientation and quick sessions make it ideal for on-the-go action.