Ark, one of your continents is under attack by enemies and you have been assigned to neutralize the threat. Repel the invasion by protecting your command base using an arsenal of weapons and barriers available to you.
- Fight over 3 levels of difficulty spanning 30 missions.
- Endless mode with Game Center ranking.
- Earn 35 Achievements.
- 11 unique towers.
- Over 10 levels of upgrades.
- Tower upgrades are persistent.
- Module system – Attach powerful modules for more offensive/defensive bonus.