Is there a 25th century Star Trek?

Answer 1

None of the TV shows or movies were set in the 25th century. An episode of Voyager called 'Relativity' featured officers from the 29th Century. And parts of the finale, "Endgame" were set in the 25th century, though that timeline was later erased.

Several novels have featured the 25th century including "Preserver," parts of the "Millennium" triology and "Imzadi"

The MMORPG Star Trek Online is set in the 25th century.