42 All-Time Classics
Age of Empires: The Age of Kings (or Age of Empires: Mythologies)
Anno 1701 (or Anno: Erschaffe eine neue Welt)
Another Code
Broken Sword: Shadows of the Templar (Baphomets Fluch)
Civilization Revolution
Dragon Quest IV (Chronik der Erkorenen)
Dragon Quest V (Hand der Himmelsbraut)
Dragon Quest Monsters: Joker
Final Fantasy IV
Final Fantasy XII: Revenant Wings
Rune Factory: A Fantasy Harvest Moon
Fire Emblem: Shadow Dragon
Meteos
Might & Magic: Clash of Heroes
Mystery Case Files: MillionHeir
Ninjatown
Picross DS (or Picross 3D)
Puzzle Quest: Challenge of the Warlords
Planet Puzzle League
Kirby Power Paintbrush
Mario & Luigi: Partners in Time
Mario & Luigi: Bowser's Inside Story
Scribblenauts
True Swing Golf
Zoo Keeper
Great games which I can't recommend for your library as they're only available in English:
Chrono Trigger and The World Ends With You.
