Friday is a solo adventure - only you can win the game!
You are helping Robinson, who came ashore on your island, fight against many hazards. At the beginning, Robinson is not very skillful. With each fight he wins you will improve his abilities, but defeats are also helping to get rid off of his worse habits. However, life on the island is energy-sapping, so that Robinson not only gains experiences during his time there, but also starts aging and tends to get clumsy.
In this game, Robinson is represented as a card stack of different behaviors. You are forced to improve this card stack, so you can collect the cards at the end of the game to give Robinson the best chance to win against the tough pirates!
Freitag, the second game in Friese's Freitag-project, (Black Friday was the first) is about Robinson and Friday (Freitag). The player is Freitag and must help Robinson to survive and prepare him for the last two battles against the pirates.
Freitag is a deck-building game in which you try to add good cards to the deck and get rid of the bad ones. With this deck you fight against the dangers. If you defeat one danger (card), you will add this card to your deck (good). If you lose against a danger, you lose some health tokens, but you can get rid of the cards you lost with (generally weaker cards).
If you lose all of your health tokens: game over; if you defeat both pirates, you win.