Tower Defense Games + AA SU-122

Heroes of Legend (HOL) - The war between the Heroes and the beasts. This is another interesting defense game.

HOL (Heroes of Legend): Tower Defense - BigFoxStudio

Download free from Google Play Store: 

https://play.google.com/store/apps/details?id=com.jokerteam.hol2

Swamp Defense 2 is a classic tower defense game with unique weapons and monsters as enemies for any beginner or defensive specialists.

Swamp Defense 2 - EntwicklerX

Download free from Google Play Store: 

https://play.google.com/store/apps/details?id=de.entwicklerx.swampdefence2

Armored Aces - Full SU-122 - WW2 Era - Russian TDs - Full HD Gameplay (1080p)

Tower Defense: Galaxy Field

Tower Defense: Galaxy Field is one Strategy game with high quality HD graphics and a variety of other special features, promises to please all fans Tower Defense games genre dramatic, classic.

Tower Defense: Galaxy Field - Zitga Studio

Download free from Google Play Store: 

https://play.google.com/store/apps/details?id=com.zitga.DefenseField