Fortress Clash:Tower Defense (macOS)

Alien machinery invaded the earth and humans were forced into desperation, spending all its resources to build the strongest fortresses. You have been appointed as the last human commander in the fort, creating and operating powerful mechs to fight the invasion of the mechanical army and reclaim the former homeland for the humans.
You will upgrade and promote every turret of the defensive fortress, attack the mechanical enemies that are constantly coming forward, prevent them from attacking the city; summon various heroes, send them out of the city to fight the enemy, choose the right skill combination, give the enemy a fatal blow at the most appropriate time. As a commander, you will compete with alien machinery in a battle of strength and intelligence on this turquoise blue planet.
Commander, must lead mankind to recapture homeland!

[Game Features]:
1. Refreshining experience, easy opreation, invincible record
2. Hang up easily and get a lot of benefits even offline
3. Exquisite graphics, sci-fi-film immersive experience
4. Build fortress for impeccable defense
5. Collect and develop mecha heroes, combat intelligently, fire on full power
6. Free match skills, it's time to show your talents
7. Multi-scene map, glaciers, deserts, forests, unpredictable battlefields, waiting for your challenge!