expired Choose a Free Game from a List of 2077 @ GOG
Maybe give it a bit of time before trying this -the servers are currently getting hammered.
Choose your free game from a list of 2077. The selection includes games, DLC and bonus items (soundtracks etc.) so be careful when choosing that you picked the game not the DLC or soundtrack.
This is basically a promo for the release of their Cyberpunk 2077 trailer.