Just tried this in my existing save. I activated this mod after finishing Marsgate to make sure there wont be any conflict. Generally works great till now. It also makes B&B DLC more useful for hiding non combat rovers underground.

For those who dont know: It's possible to use this mod in existing save. You can use Choggi's Expanded Cheat Menu to change any game rule in midgame,Also after activating the rule, in MCR option "Start first random attack after sol" you need to set a sol SUPERIOR THAN your current sol to start the mod.

Some potential issues I found:

1. It seems that I need to have at least one vanilla meteor laser or turret gun (from Marsgate) to make all rovers and Patriots shooting meteors. Otherwise they only shoot enemies instead.
2. Sometimes for unknown reason when building a Patriot combat rovers arent deployed.

Well what I mean is that this is pretty much a MAD system (Mutually Assured Destruction) once the missiles are airborne. There isn't any way to actually shoot down or run away from enemy missiles to protect the poor tourists in the Safari Rover lol

Need an Anti-Missile system :P

I up the combat rovers from Patriot Defense Systems mod to match the enemy.
Fair fight at that point coming down to who can launch more missiles.

I am curious... How do you keep the enemy from just wiping out your non-combat rovers?
I just lost 8 various rovers that were parked in the center of a 2 ring defense grid. The enemy basically survived 4 full volleys long enough to get a 1 shot kill missile in on each of my non-combat rovers. Seems the moment the enemy's missile is in flight you might as well write the target off as lost.
Is there any actual defense?

Here you go.
Copy this exactly. Hit enter. Save the game and reload the game and you will be good as if the rule was on.
g_CurrentMissionParams.idGameRules["AttackTheColony"] = true

Can you please give me (or post here in the mod's description) console commands sequence for ChoGGi's ECM mod that allows me to activate this mod, even after starting and playing a game for a while?

Well, I'm using Patriot Mod.

The recent problems reported here are not due to this mod but either Patriot Missile Defense System or the NASA mod. I just finished the code changes for both and am testing them. Will upload them in a bit. Watch those for the update.

@hinoron1
I'm not in control of what happens after a dome gets struck. Thats the default game.
All this mod does is ask the game to spawn some enemies.
@warstalker
I can fix the enemies salvageable. But that will be for new spawned rovers only. Let me see what I can do for the ones stuck on a map.

For some reason destroyed enemy rovers can't be salvaged. Is it intended? Even Cheat Menu didn't allow me to delete it. Only when I selected to delete all objects of same type - it did work, but it also deleted my Missile Rovers.

First try using this was challenging, as expected.
Marsgate mystery detected, so turrets default to not attack enemies, (to spare the quest rovers). However the hostile rovers arrived first, and had lots of time to reduce my entire base to a scrapheap while I fumbled around learning how to switch the settings back manually (by which time all defences were already destroyed of course). A painful lesson. T_T
Here's the part I think is a bit screwy: My domes couldn't be destroyed, just fractured about 160x. Each fracture costs 5(?)polymers to fix, for a total of about 800. The dome only cost about 100 polymers to build in the first place!
Meanwhile my ENTIRE population suffocates and dies.
(Yes I suppose I could restore from a save... but that feels more like cheating to me than actual cheating. :P )
Anyway, that infinite dome damage with no cap on it (and the ridiculous repair cost) seems like a bug issue.

I think to use it with the chogi tower defense to make it harder with both mods together, are compatible?

Any help would be much appreciated SkiRich, this mod is exactly what this game needs (in my opinion). The mod config would be amazing, the commands to initiate it in ECM would probably work for me as well (I am fairly good at following directions LUL).

Any plans on extending this MOD with more types of attacks/combat things? It's one of those things I'd love to see added in as a DLC, but the likelihood of that happening is probably slim to none.

Another mod I'd love to see is a mod that triggers additional mysteries randomly (or semi-randomly), wondering if thats something thats possible.

Thanks for your time, and help!

Well, technically yes, if you have ChoGGi's ECM mod which is a development mod that gives you command line access to the console.
I could give you the sequence of commands to initiate to get this mod to activate, even after starting and playing a game for a while. Its not simple though. It would probably be easier for me to add in an option to do it in mod config for you.

Is there any way to add this rule in without restarting your save? I'm bordering on late game, and could use an extra challenge like this.

Check the bug reports to see the fix for the reported isues with turrets still firing on dead enemies. All fixed but you must rebuild the turrets.

Works on my end! Thanks Ski.

Updated today, fixed some code for a condition some users reported that they never got attacked. Double check your mod config settings for the mod if you changed them to make sure they stuck.

I’ll check things out tonight in a new game just to be sure.

I am not sure what the issue is on my end i deactivated all my mods except this mod and its required mods plus mod option set to spawn after sol 2 and sol 4 comes by with nothing to show

I've seen that effect before and its usually due to an old mod with old code stepping on something I wrote. Post you mods listing in the bug reports section.

i downloaded the mod due to i feel that having a disaster to always do the attack onto me is boring so i got this and i saw that whenever i make the patriots, they shoot at the sky for no reason even during the 1st sol, i also did the one mistery that had the earth assault and the a.i didnt attack anything on both side while my rovers just die from thin air.. i even built the game missile turrets and when the hostile rovers (game ones that is) spawned, not only didnt the rovers fire at me but the turrets do a similar pathern like the patriots, spam rockets into the sky for no reason

I'll have to check this out by playing a new game and let you know what I find.

I have the mod installed but the attack is not firing I tested it for a sol 10 spawn and nothing happened

@Draco, is that just a cosmetic wish for you? If you dont mind the code staying on, I could code something into NASA that allows you to shut off the battery from being displayed in the menu. If thats something you want let me know. Just remember, when you have both loaded you can get up to 10 patriot rovers delivered. 5 for the nasa battery and 5 for the patriot (just make sure you up the max rover count in Mod Config).

Because i forgot to do this before game start and noticed it when i saw two missile launchers in bulding menu.

Checking the code, yes this warningis correct. If you started a game with one or the other or both then it records that and sets the attack accordingly. If during an existing game you turn off Patriot Rovers but still have the attack the colony on then you are ripping out the functions artificially that where set on game start. Thats coded purposely so you dont bork the code mid game.

If you dont want the Patriot Rovers, play NASA and attack the colony then you need to start the game with the Patriot Missile Defense mod off. Why did you shut down PMS mid game?

@Draco, I'll fix that. It should not bug you if you have NASA.

This mod require Patriot Defense or NASA Sponsor. After turning off Patriot Defense and loading ongoing game i've got message that i don't have any of them, but i have NASA as my sponsor.

@ Jarquafelmu, if you set the rule to On when you started your current game then you are set. If the rule was not set when you started the game then its not active but you already have the fix. technically you could go back to the old savegame just before day 20 and just play if you still have it.

thanks for the fix, will it need a new game to update or would it work in an existing game?

Fixed issue with unexpected attack before Sol 50 default. Thanks to @Jarquafelmu for the report. Mod Updated.

@Jarquafelmu, thank you for reporting this. I will check out the code later tonight.

The first attack is supposed to happen at 50 sols and then 20 sols after that. I got an attack at 20 sols. I wasn't ready so it scrapped my base.

At last, TANKS in space...
My pathetic life is now complete..

Thats wh I made it. For the folks that have done it all and now want something to challenge them using game rules. Nothing like playing chaos theory, hunger, last ark, and attack the colony. Good luck.

Well that is one way to get rid of the late game boredom, lol.

"There is no peace among the Stars"

This is meant to be a citybuilder... I love the Paradox modding community, almost as much as the KSP one.

I guess for the people that like this sort of thing it's probably a great mod. I wouldn't build it into the base game though. It's not exactly what this game was originaly designed for but that's the great thing about mods. you have some control over the game. You don't have to settle for just what the devs think the game should be.

When I read the title I thought that it was a mod that let you attack a preset colony. That would be cool.