Rosco Universal is a game to learn vocabulary in the Spanish language. To learn vocabulary, you must play the game.

You will be presented with a word that is the name of a concept. You will have limited time to answer the definition. If you answer the definition correctly, you will receive points and, if you answer correctly, you will enter the online rankings.

There are several game modes, each with many levels and progressive difficulty. At the beginning, you will find easy words that are commonly used in every day talk. However, in the more advanced levels, you will get rarer and more specific words, until you get to the higher levels where you will find extremely rare words, some of which have not been in use for centuries.