Proving Grounds - Still so good, but why does it have to be solo only!??! :(

About Proving Grounds, from BoardGameGeek:

Maia Strongheart stands alone against the world. A cabal of conspirators has framed her for the death of her own mother, the Sun Queen, and they intend to usurp the throne from her family. To prove her own innocence and reclaim her birthright, Maia must step into the proving grounds to complete a trial that will stretch her combat skills to the limit. Will the Wizened's chosen daughter vanquish her foes in the arena? Or will she be overwhelmed by the conspirators and their evil aspirations? Proving Grounds is a real-time solitaire dice game that merges narrative and gameplay in a brand-new way. In this box, you will find a novella, "Only the Strongest Has the Heart of a Wizened Queen", written by Monica Valentinelli. This sweeping story sets the stage for the events of the game. Read the story of Maia Strongheart as she fights to ascend to the Sun Throne, then recreate her extraordinary battle! Proving Grounds has a training game and six different gameplay modules. Once you've learned the basics, add a single module or mix and match to your tastes. If you're feeling truly adventurous, put them all together for a true test of your gladiatorial combat skills! -description from the publisher