Game design psychology is how game developers use psychology to create games that are engaging and addictive. They use psychological tricks to make the game challenging, rewarding, and create a sense of accomplishment. This makes the game motivating for players to keep playing.

Game designers use a psychological principle called "flow" to create engaging games. Flow is when players feel fully engaged and immersed in the game, with clear goals, challenges, and feedback that give them a sense of progress and accomplishment. By designing games that promote flow, players are more likely to stay engaged and motivated to keep playing.

A game that utilises this technique very closely is the mobile hyper-casual game "Color Bump 3D," the player controls a ball that must match the color of obstacles to pass through them. The game starts easy but gets harder as the player progresses through levels, creating a sense of challenge and motivation to keep playing.

Game designers use rewards and reinforcement to motivate players to continue playing and to encourage specific behaviors within the game. Players can earn points, badges, achievements, or in-game items that give them a sense of accomplishment and progression. These rewards are used to keep players engaged and motivated to continue playing the game. Games that make use of this method include the popular Candy Crush, World of Warcraft, Overwatch, Pokemon GO.

Game designers use social psychology principles to make games more engaging. Multiplayer games leverage our innate desire for social interaction and connection. By building social networks within games, designers can create a sense of community and belonging, which keeps players engaged. Games like PUBG, Fortnite, COD Mobile, are popular games that have utilised this technique to keep players glued to their screen and it will suprise you to know how many hours of the day players spend in the game.

Finally, game designers use principles of behavioral psychology to create habits and routines within games. By providing players with daily quests, daily rewards, or other forms of routine activities, game designers can create habits that keep players coming back to the game.

In conclusion, the psychology of game design is a fascinating field that explores how game developers use psychological principles and techniques to create engaging and addictive games that keep players coming back for more. By understanding these principles, game designers can create games that are not only fun and entertaining but also highly motivating and engaging for players.