Space STG 3 - Empire of Extinction is tactics and strategy game that recaptures and improves on the magic of the origin game. You can find universe campaigns and a lot of futuristic units. 

Immerse yourself in a war of clans. Explore solar systems, conquer planets, manage cities, develop technology and create space fleets and massive armies. Delightfully challenging, yet simple enough to grasp.

SCENARIO:
Mega corporations, more powerful than any galaxy government, compete against each other in a race for the galaxy's vast resources and treasure. Their galactic riches bring them more Tech as well as expanding private militaries for interstellar supremacy.

FEATURES:
★ Achievements, Leaderboard, Quests,
★ New development features will enhance the game experience,
★ Groundbreaking single player campaign with missions and rewards,
★ Over 40 campaign offline missions,
★ Multiplayer in galaxy - play with friends!
★ Conquer cosmos in additional 30 bonus missions,
★ Cloud save via Google Services,

★ ★ ★ BUILDINGS FEATURES★ ★ ★ 
☆ Main base - provides population limit number.
☆ Metal mine to provide metal minerals.
☆ Crystal mine to provide crystal minerals.
☆ Graphene mine to produce graphene minerals.
☆ Power plant to produce energy.
☆ Ship yard provides the ability to create spacecrafts. Every level increases building speed of units.
☆ Defense building provides the ability to buy planetary defenses.
☆ Laboratory to research and develop technology.

★ ★ ★ SHIPS FEATURES★ ★ ★ 
☆ Transporter is to transport minerals between planets.
☆ Colonizer that colonizes an planet which allows you to build buildings.
☆ Fighter is a light and very fast fighter. It can perform quick attack.
☆ Destroyer is a medium class spaceship. Has ability increase guns power.
☆ Battlecruiser has the ability to destroy buildings and defense from distance.
☆ Dreadnaught is powerful spacecraft with ability to shoot from large distance.
☆ Protector has ability to hide in nebula through battle.
☆ Overlord is the most powerful galactic unit among stars with ability to change destination through flight. Big blast weapons allow to destroy several ships concurrent.

★ ★ ★ TECHNOLOGY FEATURES★ ★ ★ 
☆ Defense station has long distance weapon.
☆ Mining station, send it to an asteroid and choose mineral to mine.
☆ Merchant station provides ability to trade minerals. Use transporters to start exchange minerals.
☆ Defensive shield enables layer all over the planet. It can defend from nuclear missile, bomber attack and enemy ships invasion.
☆ Invisibility makes player's ships invisible in galaxy.
☆ Missile is nuclear rocket can destroy buildings and defense units.
☆ Electrical storm, use it when enemy ships are near to deal damage.
☆ Probe provides information of galaxy about an enemy's buildings, ships, defense and technology.