Factorio

Adds a few harder enemies.

Improves the enemies tactics by using potential fields/pheromones allowing probing of defenses, retreats, reinforcements, counterattacking, breaching, raids, rallying death cry, and player hunting. Uses non-homing blockable biter projectiles. Adds new Enemies (disabled by default). Can completely replace the vanilla AI. Difficulty setting in mod options menu.

Makes alien units drop Alien Artifacts when they die

Adds catastrophic events and other disasters to the game! (underground alien invasion, Biterzilla, frenzy, etc...)

Vastly improved biter AI behavior, tweaks biter expansion mechanics. Memento mori.

Grow your own Alien eggs, to spawn Aliens where you want.

Adds capsules to catch the native inhabitants and the necessary infrastructure to farm them.

Nighttime just got a little more dangerous.

Add new enemies & Order.

Changes Biter expansion and evolution Behaviors