If the phone was reset (a "Hard Reset") where all data was wiped and then reinstalled, then there is no way to get any old game data back. You may be able to locate the games online and reinstall them on the device, but the old saved games would be gone. There are ways to try and get some data back on a phone, but when it comes to saved game info, that is usually not possible. However, you can 'try' the following.
While there is no guaranty that you can get them back. Deleted does mean deleted. There are a few apps/programs out there that 'may' be able to help you recover the data.
A few of the programs you could try would be... DiskDigger, MobiSaver, Android-Recovery and Tenorshare. They are all data recovery apps/programs. There are...