Sentinel 2: Earth Defense - sci-fi tower defence FREE for a limited time
Wow, we're doing a lot of freebies at the moment. Next up is the second part of the Sentinel series, Sentinel 2: Earth Defense. After the battle for Mars, the alien horde has its beady eyes on our home planet. Luckily Sentinel 2 introduces a slew of new ways to battle the bad guys, including the spectacular ship weapon system. Good luck, Commander!