The fourth generation of Pokémon games, also known as the “Gen IV” games, was released in 2006 and includes Pokémon Diamond, Pearl, and Platinum. This generation introduced 107 new species of Pokémon, bringing the total number of species to 493.
The fourth generation games take place in a new region called Sinnoh and feature new cities, towns, and routes to explore, as well as new Gym Leaders and Elite Four members to battle. The games also introduce the concept of “Physical/Special split,” where physical and special moves are treated differently in battle, and the ability to capture and battle with previously uncatchable legendary Pokémon.
Another significant addition of the fourth generation is the concept of “EVs” and “IVs,” which stands for Effort Values and Individual Values, respectively. These values determine the individual strengths and weaknesses of each Pokémon, and can be improved through various means to increase their power in battle.
Overall, the fourth generation of Pokémon games brought new gameplay mechanics and improvements to the franchise, continuing to evolve the Pokémon world and keep fans engaged.