luckygames.io lets you roll whole numbers from 1 to 99. They offer gambling with like 100 altcoins, so I would say it's worth checking them out.
Luckygames was earlier proved scam.
And therefore they are also banned from this forum.
I can suggest a few Gambling sites as per the OP's demand, that do rolls in whole number.
You can check out windice.io. They really have a decent user interface.
They are safe, secure and trustable.