Dominion: Alchemy
Dominion: Alchemy is an expansion, and can't be played by itself; to play with it, you need Dominion a standalone expansion to Dominion (Dominion: Intrigue), or Dominion Base Cards . Those provide the Basic cards you need to play (Treasure, Victory, and Curse cards), as well as the full rules for setup and gameplay. Dominion: Alchemy can also be combined with any other Dominion expansions you have.