Kingdoms & Lords
20 Achievements
200
25-30h
Demon's Nightmare
Successfully resist invasion 100 times (includes helping friends).
10
How to unlock the Demon's Nightmare achievement in Kingdoms & Lords - Definitive Guide
Thanks to Shadow Kisuragi for finding this out.
Explanation on the crashing
Your game actually crashes when you get a notification which you get when your kingdom is invaded. To be able to open your game again, your last notification must expire. It can take a long time (a few weeks to a few months). Make sure you don't get any new notification. Tell your friends that are actively playing the game not to invade you or your game will crash again and do not invade them either or you'll make their game crash.
What do I do?
You will help an inactive friend resist an invasion made by another inactive friend and use the date trick.
Samarin6 and me (Ellinas Warrior) will be your two inactive friends, send us a friend request on Xbox 360 / Win 8 / WP 8 with a message saying it's for Kingdom & Lords. (The Xbox One / Win 10 friend list doesn't work with K&L.)
Samarin6 invaded my kingdom before the game got bugged and you can resist that invasion when you visit my kingdom. When you have, change your date back and resist the invasion again. Do that 100 times and you'll get the achievement.
If your kingdom is "invade friendly" (5x swordsman in your Defense Fortress), most attackers will use 5x axeman to invade you. Use 5x spearman or 5x any cavalry unit and eventually magic cards to repel them.
If the attacker used different troops to invade you, use stronger troops and magic cards to defeat him and make your kingdom invade friendly.
Do not hesitate to replace one of your units by Mona so she can level up. There is a cooling period before you can use her again.
You can check your progress in the achievements' menu.
Note:
Helping a friend resist an invasion also counts towards the achievement.
If you do that, invade your friend as well so he/she doesn't "lose" a resist.
To begin with, the achievement is asking you to repel 100 invasions of buildings either in your kingdom, or a friends' kingdom. So get a friend to invade one of your buildings, or check your friends' kingdoms for invaded buildings and proceed to repel the invasion.
Once you have done that, close the game fully and change your date back 1 day. Next, open up the game and let it load. You might have to re-close it after you changed the date as it sometimes doesn't close even though you already have.
After the game has loaded up you may get an error about connecting to the servers which is fine. Now close the game again and change the date back to the correct time. Open up the game again and you will notice that the building(s) will again need repelling. Rinse and repeat as necessary.
If you are having issues connecting to the server on a consistant basis on current time, you can delete the game from your computer, redownload it, complete the tutorial and then choose the cloud save. Before you do this though bear in mind that it will revert to the last time you were able to save to the cloud. If I was having said issues, I would jump between days until it would connect so I could save to the cloud then re-sync to the correct date.
***I only ever had connection issues when pushing the date forward passed the current date and time. Going back in time never caused me any issues.
This achievement requires that you drive an occupying enemy out of your kingdom. When another player successfully attacks a building in your kingdom, a symbol will appear that you can click on to battle that player to drive them from your kingdom. You need to do this 100 times. You can also help a friend resist an invasion by clicking on the same symbol when you are visiting their kingdom. Win the battle for them and it will also count towards this achievement. You can check your progress towards this achievement under Tools>Achievements (there is a counter).
There is a good method to boost this achievement, as well as the "Demon" achievements simultaneously. Basically you want to recruit as many friends to boost with as you can. Each player should keep five, low-level infantry units as their only line of defense (either spear men, axe men, or sword men). That way, when your friends attack you, they can deploy five low-level enemies that has a damage bonus against your defending soldiers. They should have no trouble successfully invading your kingdom. Now, when you click on the symbol to resist the invasion, you will only be fighting their low-level enemies. You can pick whatever powerful units to rid them from your kingdom. This assures that everyone will be able to get easy invasions and defends against the boosting partners to work towards both of those achievements at the same time. This method is especially effective because it eliminates the issues caused by players having different levels. Each player can only attack you once per 24 hour period (without the time glitch), so to get this done in a timely fashion you will want as many friends contributing as possible. See the Achievement Trading Thread for others looking to boost.
TIME GLITCH METHOD: Basically you want to visit a friend that has been attacked by another of your friends (must be friends with both). When you visit their kingdom, the symbol will be there to repel the attack. Then click the icon and win the battle as normal. This will count towards the achievement. Then exit the game. Go into device settings and change your date BACK one day. Load game and visit that kingdom again. You should be able to repel the same attack again. It will count towards the achievement as well. Then exit the game and return time settings to automatic. Load and that same repel should be available again. Repeat over and over. It is kind of tedious, but is better than waiting around for friends to attack you. If you can find multiple friends kingdoms with repels in them, then you can do more than one before you have to change the time settings and reload the game, which saves significant time.
This achievement requires that you drive an occupying enemy out of your kingdom. When another player successfully attacks a building in your kingdom, a symbol will appear that you can click on to battle that player to drive them from your kingdom. You need to do this 100 times. You can also help a friend resist an invasion by clicking on the same symbol when you are visiting their kingdom. Win the battle for them and it will also count towards this achievement. You can check your progress towards this achievement under Tools>Achievements (there is a counter).
There is a good method to boost this achievement, as well as the "Demon" achievements simultaneously. Basically you want to recruit as many friends to boost with as you can. Each player should keep five, low-level infantry units as their only line of defense (either spear men, axe men, or sword men). That way, when your friends attack you, they can deploy five low-level enemies that has a damage bonus against your defending soldiers. They should have no trouble successfully invading your kingdom. Now, when you click on the symbol to resist the invasion, you will only be fighting their low-level enemies. You can pick whatever powerful units to rid them from your kingdom. This assures that everyone will be able to get easy invasions and defends against the boosting partners to work towards both of those achievements at the same time. This method is especially effective because it eliminates the issues caused by players having different levels. Each player can only attack you once per 24 hour period (without the time glitch), so to get this done in a timely fashion you will want as many friends contributing as possible. See the Achievement Trading Thread for others looking to boost.
TIME GLITCH METHOD:
Basically you want to visit a friend that has been attacked by another of your friends (must be friends with both). When you visit their kingdom, the symbol will be there to repel the attack. Then click the icon and win the battle as normal. This will count towards the achievement. Then exit the game. Go into your time settings and change your date BACK one day. Load game and visit that kingdom again. You should be able to repel the same attack again. It will count towards the achievement as well. Then exit the game and return time settings to current. Load and that same repel should be available again. Repeat over and over. It is kind of tedious, but is better than waiting around for friends to attack you. If you can find multiple friends kingdoms with repels in them, then you can do more than one before you have to change the time settings and reload the game, which saves significant time.