Casino. Merkur Casino is in Madrid, Madrid, Comunidad de, Spain and is open daily 10amam. 6 likes · 2 talking about this. . Spielhalle Las Vegas Radeberg Not yet rated (1 Review). SlotClub Spielothek. Spielhalle Las Vegas Radeberg, Radeberg. In our review, we've considered the casino's player complaints, estimated revenues, license, games genuineness, customer support quality,.