The hammer just came down on The Game after he allegedly attacked his ex-fiancee during a domestic dispute last month -- TMZ has learned, the rapper has been ordered to stay at least 100 yards away from her.
Tiffney Cambridge obtained the restraining order against Game on April 2nd, barring Game from having any contact with her whatsoever ... pending a court hearing later this month.
The judge is allowing Game to see his kids on the weekends.
TMZ broke the story ... Cambridge filed a police report against Game, claiming he got violent with her during a March 19th argument. Sources close to Cambridge told us Game broke her nose, but Game denied ever laying a finger on her.
Police are still investigating.