Lite version is just the first map.

Choose your path and raid the galaxy for crops. Deploy your UFOs to steal crops and avoid the barrage of missiles that impede your assault. Return your plunder to your own space farm where you can harvest your crops and protect your crops from bugs with missiles. Just be watchful for counterattacks on your base!

4 Game Modes:

Storm
Harvest
Defense
Explorer (unlocked with more crops)
4 Game Maps with varied challenges that include:

Timed
Moving Crops
Asteroids