Full Invasion 2 is a co-op module for Warband where players battle countless waves of invaders and bosses to survive as long as possible. It has been rated by the community numerous times as the most popular multiplayer module.

Full Invasion: Osiris, a completely new module, is now available.

Full Invasion: Osiris | Full version [Current]

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Wave 53 Studios

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Greetings, Defenders

Full Invasion: Osiris is now available for download! After a month of beta testing, we are now ready to release the full version of the mod. It's been nearly two years since the last version of Full Invasion 2 was released, and Osiris has been in development for even longer than that. Thank you all for sticking around and keeping the mod alive, even though there was not much new content to keep you going. Full Invasion: Osiris has been a massive undertaking, and we hope you will enjoy it as much (or even more!) as you have enjoyed the mod so far. Special shout-out goes to our Patreon supporters, without whom we might have lost drive long ago, and who certainly helped a lot with testing Osiris to make sure it works as intended. Here's to them!

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Download locations

This time, there are three different ways to download the mod. You can either download the installer for Osiris on Windows, download the mod through the Steam Workshop, or download it the old fashioned way, as an archive. We recommend using the Steam Workshop, as that will automatically update the mod for you when we release future patches.


This is the general changelog for Full Invasion: Osiris. A lot more has changed than this changelog details, but if we were to include all little details it would be too long to post.

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The major changes:

  • All factions from Amber have been removed, and have been replaced by the following factions:
    • Defender factions:
      • The Calradian Realms
      • The Crusader States
      • The Empire of Sigmar
      • The Lord of the Rings
      • The Saracen Sultanates
      • The Arcane Empire
      • The Greco-Persian States
    • Invasions:
      • The Invasion of Calradia
      • The Storm of Chaos
      • The Forces of Christendom
      • The Armies of Isengard
      • The Hordes of Mordor
      • The Invasion of Saracens
      • The Tide of the Blackmarch
      • The Greco-Persian Invasions
  • Each faction has a lot more content. Defender factions have up to 130 classes each.
  • All maps, a handful of exceptions aside, have been removed, and have been replaced by maps of greater quality.
  • The invasion script has been completely rewritten. Bots now spawn in smaller groups, and each wave consists of a certain amount of groups. More details on the new invasion script below.
  • The amount of waves in an invasion has been reduced from 53 to 34.
  • Classes are now divided into 4 tiers: Recruits, Soldiers, Elites, and Heroes.
    • Recruits are weaker classes that get a set of free armor.
    • Soldiers are the standard troop type known from earlier versions of the mod.
    • Elite Troops are more powerful classes that have access to better stats and items. These classes have an extra gold cost to start using them.
    • Heroes are the most powerful troops around. More information about heroes can be found below.
  • Heroes now have special abilities they can use every few waves. These abilities can be used to turn the tide of battle, and range from increasing the hero's speed to resurrecting fallen enemies as allies.
  • Heroes and Support classes can now give buffs to all nearby related classes. These buffs can do anything from increasing melee damage to increasing horse speed, improving nearby shields, regeneration and much more.
  • The class selection screen has been completely remade to make sure we have enough room for the amount of classes.
  • The faction and map selection screens have been completely remade. These new screens are used when making polls and on the admin screen.
  • The amount of gold you start with and get for fighting has been significantly reduced. The first waves of invasions have been scaled down appropriately.
  • Random boxes are now split into 4 types: Melee, Ranged, Shields, and Legendary. The normal boxes still have a chance to spawn a legendary item, but the Legendary box guarantees one for a steep price.
  • The bug that caused your FPS to drop over time, forcing you to open the log, has been fixed. No more L presses!
  • Added a training map that can only be used outside of Invasion mode.
  • You will now respawn 2 waves after you die, instead of after every boss wave.
  • There is now a countdown timer before each wave to get prepared. During this setup phase the usage of props like beds and quivers is sped up.
  • A lot of the "power creep" from previous versions has been turned back. Invading bots are weaker in general, but so are the players. This means you'll find less absurdly strong enemies or weapons.

New admin features

  • Temporary bans now actually work.
  • Admins can now mute all players that are not admins at once.
  • Admins now have a special chat that only other admins can see. Access this chat with the 'M' key.
  • Admins have new items to spawn in.
  • A banhammer has been added. Only admins can pick it up, and any player hit by it will be temporarily banned. Wield with care.

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As mentioned above, invasions now work completely differently from before. Instead of having all bots spawn in one giant mess and each non-boss wave being the same, waves are now made up of groups. Each group is a cohesive set of bots that spawn together at one spawnpoint. For example, a random wave in the Invasion of Calradia can be made up from 3 groups: Nord Raiders, Rhodok Crossbowmen, and Khergit Horse Archers. This system ensures that each random wave is unique, and no playthrough of the same invasion is identical.
The amount of groups, and the size of each individual group, increases as the invasion progresses or more players join. The further into the invasion you get, you will find tougher groups to fight.
Furthermore, each map now has multiple directions the enemy can attack from, and has separate spawn points designated for each type of enemy you face (infantry, cavalry, or ranged). This means you will have to keep an eye on the map, and work together with your allies to ensure you are not outflanked by a surprise attack coming from another angle.

fi2 saracen

Support classes and Heroes

Osiris introduces support classes and extra abilities for heroes. Support classes are classes that are less proficient in combat by themselves, but can provide bonuses for nearby allies, such as increased damage, healing, movement speed, or defensive boosts. Support classes tend to only provide bonuses to a subset of classes, requiring players to cooperate to make the most of their bonuses. For example, a Jerusalem Bannerman in the Crusaders faction will only provide bonuses to nearby Jerusalem classes.
Hero classes also provide bonuses to nearby allies, and have access to unique active abilities. These abilities allow them to (for example) instantly heal nearby players, cause enemies to run away in fear, spawn bodyguards to protect them, teleport to an earlier position, and much more. To compensate, only one player can play as a particular hero at a time.

Full Invasion: Osiris - "The Countdown Begins"

Full Invasion: Osiris - "The Countdown Begins"

News 5 comments

Full Invasion: Osiris, two years in the making, releases in two days on Saturday, October 13th 2018. Get your hype going!

Full Invasion: Osiris - "The Home Stretch"

Full Invasion: Osiris - "The Home Stretch"

News 7 comments

The Final Preview for Full Invasion: Osiris is here! That means the closed beta is right around the corner. Today we detail the new factions in the Final...

Full Invasion: Osiris - "The Game Plan"

Full Invasion: Osiris - "The Game Plan"

News 6 comments

This article details the plans we have for releasing Full Invasion: Osiris over the coming months! We talk about some technical background improvements...

Full Invasion: Osiris - "Deus Vult"

Full Invasion: Osiris - "Deus Vult"

News 9 comments

Full Invasion: Osiris is an upcoming co-op module for the popular game Mount & Blade: Warband. It is a complete remake of Full Invasion 2, and will feature...

RSS Files
Full Invasion: Osiris 1.03 | Full version [Current]

Full Invasion: Osiris 1.03 | Full version [Current]

Full Version 19 comments

**Please click 'read more' below for important information.**

Full Invasion: Osiris | 1.03 Patch for 1.02

Full Invasion: Osiris | 1.03 Patch for 1.02

Patch 1 comment

The 1.03 patch for Osiris. This is not a full download, but a patch for people who already have version 1.02!

Full Invasion: Osiris | 1.02 Patch for 1.01

Full Invasion: Osiris | 1.02 Patch for 1.01

Patch 2 comments

The 1.02 patch for Osiris. This is not a full download, but a patch for people who already have version 1.01!

Full Invasion: Osiris | 1.01 Patch

Full Invasion: Osiris | 1.01 Patch

Patch 2 comments

The 1.01 patch for Osiris. This is not a full download, but a patch for people who already have version 1.0!

Full Invasion: Osiris | Full version Installer [1.03, Current]

Full Invasion: Osiris | Full version Installer [1.03, Current]

Full Version 5 comments

The installer for Full Invasion: Osiris. This installer will install version 1.03, and only works on Windows machines! **Please click 'read more' below...

Full Invasion: Osiris | Server Files [1.03, Current]

Full Invasion: Osiris | Server Files [1.03, Current]


These are the files required to run a dedicated Osiris server. You do not need to download these files if you do not intend to host a server!

Comments  (0 - 10 of 1,812)

Is there going to be low res.option to download? My potato pc could run old FI2 low res. but now cant keep up with osiris.

Reply Good karma Bad karma+2 votes

I don't think so :/

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"unable to find shaders man_plain"

What does this mean. It's stopping me from even launching the game

Reply Good karma Bad karma0 votes

You can click the message away and keep loading, it should still let you load the game. Or you can switch to DirectX 9 in the menu settings.

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Will you add more factions?

Reply Good karma Bad karma+1 vote

They mentioned they won't due to some restrictions regarding texture file sizes etc.

Reply Good karma Bad karma+2 votes

This is a good mod!! If you like anything co-op then this mod is for you. Vastly improves the Invasion game mode and you'll not want to go back to native's version! Again, A Very Good Mod!! Fully Recommend!

Reply Good karma Bad karma+2 votes

Been playing this mode from its inception, always thought it was a great mod. Started with a good community however after getting kicked by an admin for closing the in game gate on invading enemy... cant say ill be poised to return anytime soon after that. Spend your time one of the many other mods available for this game and enjoy those communities (the ones where you wont get accused of trolling for literally just playing the game) or just play Native, its still the best

Reply Good karma Bad karma0 votes

You can just join right back if he just kicked you from the game, and one admin doesn't make a whole community bad.

Reply Good karma Bad karma+1 vote

It's somehow interesting to read that because of on admin which kicked you the whole community is now toxic^^

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Highest Rated (67 agree) 10/10

One of the best mods I've ever played.

Jan 27 2013 by Blade4You2Die

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