actually... you cant count resident evil zero.
After resident evil was made in 1996 for the playstation, they signed a contract with Nintendo to make there own verson of the game but different, which Resident Evil Zero was thought up. Created for the N64 the game was made in full but neve released because Nintendo announced it was not going to continue with the N64. However they kept the rights and the story for the game. Then we had resident evil 2, and by then sega had its dreamcast and signed another agreement with them for a game of there own which became veronica. This hurt the franchise because they didnt make a new game till 5 years later resident evil 4... The reason we had zero in the middle of this was because the game cube was created and they wanted that as a feature title. the game was already made but now too low def so they did a rebirth on the whole game.
The reason why it hurt the franchise is because it turned the game from zombie-viral related science to fairytale weirdness that code veronica was... The only people who like Code Veronica are those that enjoy Fantasy games because of the parralle.
it ruined the franchise because it took away its science.