Can I play solitaire mode?
Most players in Ludoteka search games to play with some other players. Anyway, you can play alone:
Play solitaire games (Puzzle, Klondike, Minesweeper, Mahjong, ...);
every game you play is a test, and you compete against some other players who play the same test (before or after you).
You can play with robots from the page of some of the game variants.
This is useful if you want to learn the rules or get used to the interface of the game.