Richards missed the Boxing Day win over York but could be back in contention to play some part against the Shrimpers.
However makeshift strikeforce Luis Boa Morte and Jay O'Shea showed enough against the Minstermen to suggest Richards may have to settle for a place on the bench.
The Spireites are searching for a first-ever home win against Jim Bentley's side and assistant manager Tommy Wright admits they have been a difficult opponent for them in recent years.
"Morecambe have been a bit of a bogey side. They're all difficult games, they'll come here having had some good results on the road, so we'll have to be careful," he told the Star.