Klondike. Build four foundations from Ace to King, one per suit. In the seven columns, stack cards downward in alternating colours. Only a King can start an empty column. Click the stock to draw.
Spider. Stack any card on one rank higher. A run of one suit moves together; complete a King-to-Ace run in one suit and it leaves the table. Deal a new row whenever you are stuck (no empty columns allowed).
FreeCell. Every card is visible. Use four free cells to park single cards. You can move as many cards at once as your free cells and empty columns allow.
Tools. Undo is unlimited. Hint shows a useful move. When the rest of the game plays itself, Finish sends every card home.
Scoring (Klondike). +10 to a foundation, +5 waste to column, +5 turning a card, −15 back off a foundation, −2 every 10 s, and a time bonus when you win.