I used to play Ages of Empires II on the Nintendo DS, which was easy but some of the later levels were extremely difficult (on DS it's a TBS not an RTS ). Also, Civilization: Revolution (could have a slightly different name) came out for DS. Civilization is an extremely good TBS and I'd recommend buying it on whatever platform.
Apart from them, I can't think of any. They're big titles in the strategy industry for PC.
I really liked the first Puzzle Quest game (but not that second, that one was awful!). It is a turn based puzzle type game, that focuses on battles and war and such.
Fire Emblem Shadow Dragon is a really good game as long as you haven't played any other FE games. The new classes reclassifying gets confusing. But FE:SD really is a good game with a nice storyline...
GTA:CHina Town WARS.solid gameplay and stuff u would have expectations from a GTA title.Addicting if u have a DS and no other system play this u will be hooked 4/5 game. (comment above was not worth putting)
Im srry though i put a non turn base but i think a good turn base is Age of Empires 2 =) no reason but to me its addicting but u should look into china town wars
Anything pokemon will be the most addicting game. Also they made a tom clancy End war for the DS was amazing lots of game play for a D.S. game Also Sons of Mana was amazing
I really love phoenix wright, it's a game where you have to play a lawyer, find clues en raise objections against the prosecution, the story's are good and it's very very addicting! An other good game is pokemon, mario brosh etc!
But i would really recommend phoenix wright, you have 3 or 4 different kinds of it, and after pheonix wright you have appollo justice, which is less fun i have to admitt.