Secret City 6: Sacred Fire is a free puzzle game developed by Do Games Limited available on the Android platform. The game is a point-and-click adventure game that features hidden objects, brain teasers, and mini-games. The game has a simple premise where you need to find hidden objects and win easy hidden object games to progress.

In the game, you play as an investigator who is called in to investigate a series of fires that are shaking Brussels Secret City. As you investigate, you discover the truth about a circus performer named Sherine, her dragon friend, and the mysterious woman who's trying to separate them. The game has a bonus chapter where you need to complete your shaman initiation to help save the Secret City from burning down.

The game also features collectibles such as morphing props and dragon statuettes, which unlock more lore, and tokens to furnish the circus wagon. You can replay your favorite hops and earn achievements in the game. Secret City 6: Sacred Fire is a free-to-play game, but you can buy hints to help you proceed quicker if you feel stuck or don't want to solve a mini-game.

Overall, Secret City 6: Sacred Fire is an enjoyable and engaging puzzle game that is perfect for players who love hidden object games and point-and-click adventure games.