The Kings announced the signings Wednesday night.
Curry's deal is for two years and $2 million, with a player option for the second season. Acy's contract is reportedly for two years and a player option in the second season. Terms of Dukan's deal were not immediately known.
Curry, the younger brother of NBA MVP and Golden State Warriors star Stephen Curry, led the Las Vegas summer league with 24.3 points per game on New Orleans' team. Acy averaged 5.9 points and 4.4 rebounds with the New York Knicks last season. And Dukan, undrafted out of Wisconsin, averaged 9.2 points for the Kings' summer league team.