BTD6 Sub Upgrades Tier Lists

There are not enough rankings to create a community average for the BTD6 Sub Upgrades Tier List yet. Look at the user lists below to see their opinions on the best BTD6 Sub Upgrades. Create your own BTD6 Sub Upgrades ranking to contribute to these Community Rankings.

Rank it Now!

There are no tier lists to show.

Create a Tier List