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.

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

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

Think the enemies are too easy? Well, now they just might disable your defenses with an EMP blast!

Beware the swarm! This mod makes larger biters, spitters, and spawners spawn multiple smaller enemies on death. Now, for instance, killing a medium biter means you have to deal with the small biters that spawn from the medium corpse.

Makes alien units drop Alien Artifacts when they die

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

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

Nighttime just got a little more dangerous.

Changes Biter expansion and evolution Behaviors

Add new enemies & Order.