Spy world is a slight variation on “Welcome To”. It plays very similarly as a flip and write with three decks where you pick a set of cards. The difference here is that you are building a secret lair and a master thief. After the flip and write portion ends, you have to use the master thief you built to go through the secret lair that another player built. It is fun enough, but we were constantly forgetting certain steps and, unsurprisingly, the lairs are going to be simple. Not sure how replayable the game is going to be.