tl;dr : the "Enemy" Should spread like a disease through the star system until it suffocates the players, or the players cure it. So, my friends and I have been playing Empyrion on/off for about a year, and we love the goddamn game, but the universal complaints have been, "once we pacify a planet, we're done with it" and, "we only move to other planets once we run out of resources." I know there are solutions in the works to address #2, but I'll be honest, I feel like putting a whole bunch of work into asserting control over a planet just to leave it and never come back kind of spoils a little fun for me. I like the idea that the players are put in the position of being these marauding planet-strippers moving from world to world, but I'd also like to see some consequence and investment. I'm going to lay out an idea for the escalation of an enemy fleet, that I think will incentivize a sense of "planetary ownership" for players/factions, while also providing regular challenges to the normal flow of behavior. First, Some definitions: A planetary system is a planet, 1 or more moons, and the planet's orbital space A planetary system is "patrolled" when there is an active drone carrier in the planet's orbital space A planetary system is "occupied" when there is an active "Enemy base" in the planet's orbital space A planet or moon is "patrolled" if there is an active patrol vessel on the planet or moon A planet or moon is "occupied" if there is an enemy-controlled POI or base on the planet or moon A POI or base is "conquered" if it is converted from faction/player owned to enemy owned A star system is "liberated" when no planetary systems are occupied Ok, given that: Every n hours (let's start with 6) every occupied planetary system will spawn drone carriers in the planetary space of unoccupied systems within 1 warp jump to a max of the number of occupied systems within a jump plus the number of occupied planets/moons within that system. example: Akua is within one jump of Omicron and Ningues, which are both occupied. Although the Akua planetary system is not patrolled, Akua's moon is occupied. At the end of 6 hours, where there have been no active drone carriers in Akua planetary space, two drone carriers are spawned in Akua Planetary space. Players destroy 1 drone carrier, but fail to destroy the other, at the end of the next 6 hours, 2 more drone carriers are spawned, bringing the count to the max of 3. (2 for neighboring occupied systems, 1 for Akua's occupied moon) If a planetary system is not occupied, and none of its neighboring systems are occupied, but at least one of its planets/moons are occupied. the a drone carrier is spawned in orbit, and the planetary system becomes patrolled. If a planetary system is patrolled for n hours, it becomes occupied. an enemy space station is spawned. Every n hours, If a planetary system is occupied, every n hours a patrol vessel is dispatched to each of the planets and moons in that system. That planet is now patrolled. After n hours, if the patrol vessel has not been destroyed, the planet becomes occupied. 1 POI or base is conquered for each enemy controlled POI/base on the planet/moon +1 (for the patrol vessel). Any neutral NPC spawners will become Zirax spawners, and One base per planet/moon will become a drone base for as long as the planet/moon is occupied. Why?: This will require the players to strategically plan their progress through the star system in order to defend their progress and the infrastructure they need to survive. It will provide a schedule for regular missions, and guide infrastructure development. If you include account for the "difficulty" of a planetary system in guiding the drone carriers that they spawn in neighboring systems, then it also provides a ramping difficulty progression for players to engage with. Additionally, this creates a verifiable win and loss condition for the players. After a long enough time, if unchecked the enemy will control all POIs / bases, with no more bases, the player can only enter the system through drop pods. (If local respawn is blocked). If the players succeed in liberating the star system, (which will be really hard given an aggressive n) they can move on to other star systems (which I hope is a feature being planned for the future.) I would love to play through that scenario, and while there are complicated bits to implementing it, Eleon has already done most of the work. If the Mod API supported the commands to conduct the operations I'd need, I'd happily write the mod myself.