The Railwaymen started the game brighter and took the lead when striker Courtney Baker-Richardson found the top corner of the net with a close-range header.
George Miller missed a golden opportunity to bring the visitors level before half time when his penalty was saved by Arthur Okonkwo in the Crewe goal.
But Doncaster's top-scorer atoned after the interval when he scored his ninth goal of the season to earn his side a point.
Scroll down for our player ratings.
9. Ben Close - 6
Did a bit of everything in the middle and looked neat and tidy in the process. Should do well in a footballing team. Photo: Howard Roe/AHPIX LTD
10. Harrison Biggins - 7
Looks so much more effective playing further forward and almost equalised in the first half when his low drive was excellently kept out by Crewe goalkeeper Arthur Okonkwo. Assisted Miller's goal in the second half. Photo: HOWARD ROE, Howard Roe/AHPIX LTD
11. George Miller - 7
Saw his penalty kept out by Arthur Okonkwo then headed over the rebound and almost ran into the goal post. Atoned well with a good finish for the equalising goal. Photo: Howard Roe/ahpix.com
12. Max Woltman - 6
Showed some flashes of quality on the ball off the bench. Photo: Ben Roberts/AHPIX LTD