US private equity giant Blackstone has sweetened its conditional offer for Crown Resorts by offering to take on more of the regulatory risk engulfing the embattled company if the board and shareholders agree to a deal more quickly.

Blackstone has left the price of its indicative offer unchanged at $11.85 per share, valuing the James Packer-backed company at $8 billion, a price previously rejected by investors and analysts who consider the stock to be worth as much as $16 a piece. Crown shares closed steady at $12.07.