Find adventure beyond your imagination and riches untold as you descend into the caves beneath an ancient castle! Match gems to remove obstacles, collect keys to unlock new passages and build your strength as fast as you can to break through barriers in Caves and Castes: Underworld, a sometimes relaxing, sometimes heart-racing match-three game!Above ground, you'll become wrapped up in a quest to rebuild a castle and its grounds – only something strange is preventing you from achieving your goal! Unlock one mystery after another as you restore the stunning structure to its former glory!Enjoy colorful hand-drawn art and animation, a charming story and hours of match-three fun as you play Caves and Castes: Underworld! Features Dozens of captivating levels An exciting story of adventure Simple match-three gameplay Beautiful hand-drawn artwork Learn-as-you play tutorial

Go to: http://store.steampowered.com/ and download STEAM client Click "Install Steam" (from the upper right corner) Install and start application, login with your Account name and Password (create one if you don't have). Please follow these instructions to activate a new retail purchase on Steam: Launch Steam and log into your Steam account. Click the Games Menu. Choose Activate a Product on Steam... Follow the onscreen instructions to complete the process. After successful code verification go to the "LIBRARY" tab and start downloading.