We have used the maxmind db as well. We have had to work on top of it to develop this module.
Main Features include:
1- Block a Specific Country
2- Create a Group and block a group of countries
3- See Online Users
See the online users on your store. You can view their name, Ip Address, Country and the URL they are on. Filter through the grid and find users from a certain country.
4- Blocked Ips(New)
You can see a list of Blocked ips in a Grid
5- Super Ips (New)
Now you can add a list of Super Ips which can pass through the Blocked Country. This is if you need to let someone access to the site from the Blocked country. Or you can Block the entire world and let the site access to only a few ips
6- Display Custom Mesg for Blocked Ips/Country
You can enter a custom mesg to display for the users who are not allowed to access the site.