Former Radcliffe goalkeeper Ollie Martin has joined the club, having started his career at Man City and also previously featuring at Fleetwood Town and Stalybridge Celtic.
Former Nantwich Town and Ashton United forward Aaron Burns has joined the club.
Morgan Moreland, 18, joins after being released by Rochdale after a two-year full-time scholarship with the club.
Midfielder Daniel O'Brien joins the Rams, having previously featured for Atherton Collieries and Hyde United.
The club have also announced the signing of Domaine Rouse, 31, who is best known for his time at Droylsden.