Official Games:
* Pokémon GO: A mobile game where you catch Pokemon in the real world using your phone's GPS.
* Pokémon UNITE: A free-to-play MOBA game for Nintendo Switch and mobile devices.
* Pokémon Trading Card Game Online: A digital version of the popular collectible card game.
* Pokémon Masters EX: A mobile game featuring various trainers and their Pokemon from the franchise.
* Pokémon Café ReMix: A puzzle game where you run a Pokemon café and serve various Pokemon.
Fan-Made Games:
* Pokémon Showdown: A popular browser-based battling simulator where you can battle with Pokemon from various generations.
* Pokémon Insurgence: A popular fan-made RPG with unique Pokemon and storyline.
* Pokémon Uranium: A fan-made RPG with new Pokemon and regions. (It is no longer available due to copyright issues)
* Pokémon ROM Hacks: There are numerous ROM hacks of classic Pokemon games with new features, Pokemon, and storylines.
Other Online Games:
* Pokémon Duel: A mobile game with a board game-like approach to Pokemon battles.
* Pokémon Ranger: An online game based on the Pokemon Ranger series.
* Pokémon Quest: A mobile game where you explore a dungeon with your Pokemon.
This is not an exhaustive list, and there are many other online Pokemon games available. When looking for online Pokemon games, be sure to check the game's source and legitimacy. Many fan-made games are unofficial and may be subject to copyright issues. Always be careful about downloading and installing games from unknown sources.