Mortal Kombat 1 Invasion Mode explained

Mortal Kombat 1’s Invasion Mode offers up a greatest hits experience, pulling from the franchise’s rich (and very gory) history. Here’s what you need to know.

How does the Mortal Kombat 1 Invasion Mode work? Well, you’d be forgiven for being a bit confused, as it acts as a sort of RPG/board game hybrid that aims to compliment the main story showcased in the main campaign. In fact, Invasion Mode pulls from the rich history of the Mortal Kombat series, specifically the various (and often wacky) mini-games that were offered up in previous games.

If you’re looking to jump into the Mortal Kombat 1 Invasion Mode, just know that it’s easily the most unique fighting game mode this year, in a year that’s absolutely packed with them. It’s this, the MK1 gear system, and the new Kameo fighters mechanic that really help to set Mortal Kombat 1 apart from its peers. Here’s what you need to know about MK1 Invasion Mode, including a look at how seasonal credits work, and how long a season of Invasion Mode lasts.

MK1 invasion mode: the Invasion Mode map looks like a tabletop game

What is MK1 Invasion Mode?

Invasion Mode is a single-player affair that’s a mix between an RPG and a board game. It features minigames and a separate, seasonal currency that can be earned by progressing through the map. 

It can be a little bit daunting when you load it up, but it helps to approach it as a series of challenges that remix elements of the main campaign. In Invasion Mode, you progress through realms, taking on invading forces that each offer their own unique group of challenges and stages. Some may require you to focus on a specific fighting mechanics, like blocking, while others may present as bullet hell-style minigames. Essentially, you’ll be tasked with experimenting with everything you learned by playing the campaign.

It all starts with a tutorial section, set in Johnny Cage’s haunted mansion. Invasion Mode is full of unique locations like this, many of which call back to previous games in the series. It’s very similar to the World of Light mode that launched with Super Smash Bros Ultimate, in that you move through a board game-like map, filled with Easter Eggs for long-standing fans.

By playing Invasion Mode, you can unlock customizable cosmetics for your MK1 characters, behind-the-scenes content, and more Kameo fighters. Veteran players will no doubt recognize elements of the Krypt or Towers, given that Invasion Mode acts as a sort of greatest hits version of Mortal Kombat classic modes.

There’s plenty to explore as you progress through Invasion Mode, and you’ll even earn in-game currency as you go. This can be spent at the Kollector to buy equipable items that change the stats of your characters. Finally, keep in mind that there are seasonal credits and updates to enjoy, meaning that Invasion Mode will change and evolve post-launch. Make sure to check in regularly to see what new challenges and bosses have been added.

MK1 Invasion klues and solutions

Throughout Invasion, you may stumble upon special nodes with unique names. There’s at least one special node in each of the six zones, but unless you know the answer to the Invasion klue, you won’t be able to go beyond this area. It’s important to note that some of these special nodes require specific MK1 Fatalities, characters, and kameo characters, so be sure to check out our guides beforehand.

Here is every Mortal Kombat 1 Invasions klues and the solutions to these riddles:

  • Fengjian Village – ESDORYT TEH DWLOR (DESTROY THE WORLD): Finish the match using Cyrax’s fatality.
  • Sun Do Festival – Toasty!!!: Finish the match using Kameo Scorpion’s fatality.
  • Sun Do Festival – AMNISLTA4 (TALISMAN4): Equip a talisman with four gem slots and use it four times during the match.
  • Tarkatan Colony – Flipping Out: Adjust your stance 30 times during the match.
  • Tarkatan Colony – DEDAERHT (THREADED): Finish the match using either of Ashrah’s fatalities.
  • Living Forest – QUACKX10: Duck more than ten times during the match.
  • Living Forest – ERTECA AOSCH (CREATE CHAOS): Finish the match using either of Havik’s fatalities.
  • Living Forest – NOMED RENNI (INNER DEMON): Finish the match using Kameo Sareena’s fatality.
  • Shang Tsung’s Laboratory – Another Test Subject: Finish the match using Shang Tsung’s second fatality.
  • Fire Temple – KCIRT TAH (HAT TRICK): Finish the match using Kameo Kung Lao’s fatality.
  • Fire Temple – Use the element that brings life: Finish the match using either of Rain’s fatalities.

MK1 invasion mode: the seasonal credits screen shows the hexagonal currency

MK1 seasonal credits

Invasion Mode will receive seasonal updates as it goes along. New Realms and challenges will be added every six weeks, giving you new opportunities to spend seasonal credits. These credits cannot be bought with real-world money, and you’ll need to play Invasion Mode and progress to earn them. These can then, in turn, be used to purchase seasonal items like cosmetics for your favorite fighters.

When does the next MK1 Invasion Mode season start?

We expect the next season of Mortal Kombat 1 Invasion Mode to start around Wednesday, October 25, 2023. This is due to seasons lasting six weeks and the game releasing into early access on Wednesday, September 14, 2023. 

This date is yet to be confirmed by NetherRealm, but if it alters we’ll update this guide to reflect the change. As this is relatively close to Halloween, we’d expect season 2 of MK1 Invasion Mode to feature the more spooky fighters, perhaps with a themed boss.

Again, nothing has been confirmed officially, but there have been some sightings of a new Halloween-themed Fatality, shared by MK1 thethiny. In the leak, originally shared by Aquax, Scorpion places a Pumpkin on his opponent’s head, which is crawling with bugs. When the defeated fighter falls to their knees, the winner kicks the pumpkin, which flies off, taking the head inside with it.

MK1 invasion mode: Cyrax and Kung Lao fight and green acid is sprayed across the map

How long is a season of Mortal Kombat 1 Invasion?

Each season of Mortal Kombat 1 Invasion Mode lasts roughly last six weeks. After six weeks there will be a refresh, adding in new realms, different bosses, new invading forces, and more. You’ll be able to take on these seasonal updates as they drop, giving you the chance to try out new challenges, and earn even more Seasonal Credits. Essentially, Invasion Mode will refresh after each six-week period, giving you more reasons to jump back in.

While Invasion Mode will no doubt demand a lot of your time, there’s plenty more to uncover in Mortal Kombat 1. To make sure you’re ready for the battle ahead, check out our list of Mortal Kombat 1 Brutalities and how the MK1 gear system works. Elsewhere, there’s our explainer on MK1 Dragon Crystals, which can be used in the store to purchase everything from new outfits to Easy Fatality Tokens.