The similarities between the Alien game and Pac-Man primarily revolve around gameplay mechanics and themes. Here are some key points of comparison:

1. Maze Navigation: Both games feature a maze-like structure where the player must navigate through corridors. In Pac-Man, the player moves through a maze eating pellets, while in Alien games, players often navigate through spaceship corridors or similar environments.

2. Avoiding Enemies: In Pac-Man, the main objective is to avoid being caught by the ghosts while collecting pellets. Similarly, in many Alien games, players must avoid being caught by the Alien creature while completing objectives or collecting items.

3. Power-Ups: Both games utilize power-ups to enhance gameplay. In Pac-Man, consuming a power pellet allows Pac-Man to eat the ghosts temporarily. In Alien games, players might find items that grant temporary advantages, such as increased speed or weapons to fight off enemies.

4. Score-Based Gameplay: Both games emphasize scoring, with players aiming to achieve the highest score possible. In Pac-Man, points are earned by eating pellets and ghosts, while in Alien games, points may be earned through defeating enemies or completing missions.

5. Tension and Strategy: Both games create a sense of tension, requiring players to think strategically about their movements to avoid enemies and achieve their goals.

These similarities contribute to an engaging gameplay experience, blending elements of stealth, strategy, and action in both franchises.