Use towers to build a labyrinth from entrance to exit. Each tower can be upgraded 4 times. With each wave, enemies will become stronger, so use money you earned to upgrade reasonably.
Mine and scrounge for resources as you traverse terrestrial aquatic and aerial alien planets. Research and craft upgrades to delve deeper and unlock all of the logs, and continue on the journey of Glean.
Try to build and grow your bonfire. As you progress through the game, your bonfire will grow bigger and bigger until it reaches to a galactic proportion.
One last turret stands between you and total annihilation. Destroy all malevolent alien ships by upgrading your cannon and building the ultimate killing device!