Escape game The Fallen Kingdom

Description:

For a thousand years, your house has ruled the kingdom under the peaceful reign of the king… until now. The king is dead, and the royal houses are in open revolt to claim legitimacy and power. In order to unite and bring peace to the realm, you and your elite bannermen have infiltrated the castle to obtain a crystal. This crystal has been enchanted and hidden away in the chambers of the castle. It can unite and restore balance between the royal houses or grant one house complete power. Upon arriving at the castle, scouts of the opposing houses have discovered your intention and proceed to send word by raven to their lords. They will arrive at the castle on horseback in 60 minutes with full marching orders to wipe out anyone that stands between them and the crystal. Your only chance of survival is to find it and make it out of the castle before then.