Kill over 2000 enemy Darwinians during a single game
The easiest achievement in the game unless you really, really, suck. You will get this one while completing many of the other achievements in this guide or by just playing the game regularly. Any game mode will work.

Capture all spawn points during a multiplayer domination game



Create a multiplayer Domination game with another human player.
Select the map The Eternal Guardians.

Click advanced options
Time limit: 10** (see below)
Crate Drop Period: 10# (see below)
Starting Powerups: 3

** adjust time to fit your preferences but this setup requires a little bit of focus. Additionally, the achievement requires nearly six minutes to complete under optimum conditions.

# Increases the liklihood of getting speed boosts, turrets, or other useful things. I highly recommended this to speed things up.



While one player remains static, the other begins the setup. The object is to capture all of the spawn points on the map. On this particular map there are eight and they form a horseshoe around the central mountains / magical forest. This requires the use of *officers (see below)

When the time comes to attack the final spawn, just kill your opponent's multiwinians as fast as you can. Use whatever powerups you may have at your disposal and flood the base.
The opponent can help speed this along by sending his or her units to random locations away from spawn points.
Eventually the opponent will be eliminated and the achievement will unlock.

To make an officer (unit that can direct other multiwinians to specific locations) right click a singular multiwinian. A blank flag will appear. Move your cursor to the spot you wish your multiwinians to travel and right click again. The flag will become an arrow pointing in the desired direction. You will do this for each spawn point forming a chain.
The result will look similar to the above picture.

Win a King of the Hill game with at least 50% more points than the nearest opponent



Create a multiplayer King of the Hill game with another human player.
Choose Map: The Eternal Guardians

When in lobby, click advanced options
Time limit: 1
Retribution Mode: UNCHECKED
Sudden Death: UNCHECKED

The player will then order his or her multiwinians to march into a large grey ring located directly in front of his or her's spawn zone. After one minute achievement will unlock.

Alternatively; one can use any settings they desire against an AI opponent, that is provided the game is set to "multiplayer: king of the hill."
Win with twice as many points as bot. glhf^^

Defeat someone who is already a Master Player
This is a self explanatory viral achievment.
However, even from a completely non-cynical standpoint Multiwinia is a broken game with a positively barren online playing community making this achievement seemingly impossible to earn.

An exhaustive list of players who have earned this achievement is available *A userscript to bypass Steam's silly link filter is available Here[gist.github.com]

Those are all actual human beings who can potentially lose a game and thus assist the player in earning the Master Player Achievement

This requires the player to be social and utilize the private messaging services available here on Steam to contact one of the humans and then politely ask him or her to help earn this achievement.
...and hey! Free new friend!

Recomended settings for greater efficiency:
When in lobby, click advanced options
Time limit: 1
Retribution Mode: UNCHECKED
Sudden Death: UNCHECKED


As an interesting aside, Garry Newman has this achievement. ...Ask for help pertaining very specificly to this achievement for guaranteed lulz.

Win a game of Blitzkrieg in under 5 minutes



Create a multiplayer Blitzkrieg game with another human player.
Select the map The Confrontation Point
Click advanced options.
Use pictured settings:



The object of this game mode is to raise the flag at various control points on the map. On this map there are three points; one at each spawn and one central point. It is also the smallest Blitzkrieg map. This requires the use of *officers (see below)

Just rush to the enemy spawn and kill them in under five minutes. with the addition of powerups, this can be sped up immensely.



To make a officer (unit that can direct other multiwinians to specific locations) right click a singular multiwinian. A blank flag will appear. Move your cursor to the spot you wish your multiwinians to travel and right click again. The flag will become an arrow pointing in the desired direction. You will do this for each point forming a chain.
The result will look similar to the above picture.

Capture twice as many statues as your opponents in multiplayer Capture the Statue game (minimum 3 statues)



Create a multiplayer Capture the Statue game with another human player.
Select the map The Unending Peaks.

Click on advanced options
Time limit 5
Sudden Death: UNCHECKED
Retribution Mode: UNCHECKED

Send a group of multiwinians to the statue in the center of the map and then to the designated colored ring. When the multiwinians arrive at the statue they should attempt to move it on their own. However if not, simply instruct them to do so.

The statues takes a few moments to respawn after capture.
Repeat 3x

Under optimum conditions (other player is idle) it takes roughly 3-4 minutes to make the required 3 captures.

Win a game of Rocket Riot with no rocket damage, before any of your opponents reach 50% fuel


The easiest way to accomplish this is with a static human opponent on the map Stairway to Heaven.
While your opponent twiddles his thumbs, rush the fuel generators and get your rocket fueled up as fast as you can. When the time comes, send your multiwinians to the rocket and they will begin piling in. When the rocket reaches 100 multiwinians it will lift off.
Assumming your opponnent did jack-sh*t: Achievement Unlocked.

*When one successfully sets up the grind for Genocide, this achievment will probably occur naturally in the process.

Kill a total of 1,000,000 enemy Multiwinians



Here is a very useful video tutorial made by Smacklefunky, the creator of 100% achievement group. This tutorial applies to a human or AI opponent. Please take note that progress for Genocide will be saved upon completion of the match. Incomplete matches do not contribute to total kills.

Nuke one of your allies spawn points during a co-operative game



Create a multiplayer Domination match with four human opponents.
*This achievement will not unlock with AI present.
Select the map The Holy Tree

Open the Advanced Settings tab and use the following setup:

• The altered crate drop period will make crates appear every 5-15 seconds.
  
• By giving yourself 3 random powerups at start, you are upping your odds of getting a nuke that way also.

Nukes are found in crates. If you did not start the game with a nuke as one of your starting powerups, play the game until a crate spawn gives you a nuke. Select the Nuke power-up and place your mouse cursor directly onto one of your ally's spawn points. launch the nuke.
Achievement unlocked.

Finish defending a game of Assault without giving up a single Control Point
A patch sometime in either 2011 or 2012 decoupled the in-game triggers for this achievement from the official assault maps. However, we discovered this achievement still unlocks when using community created maps.

Aggravated Assault requires that human-controlled players on opposing teams complete a multiplayer assault game without the defenders losing a single control point to their opponents.




a control point

A self explanatory achievement map, untainted by the aforementioned patch, has been created to streamline this process. It is available Here[mega.nz]

Note: If you wish to create or modify your own Multiwinia maps for whatever reason, a helpful guide created by Sparky is available Here

*Feel free to read the anti-drama regarding Aggravated Assault on the official Introversion forum bug report thread Here[forums.introversion.co.uk]

There is great consensus among achievement hunters that both Explorer and Master of Multiwinia are broken and always have been. In the search for a solution, an extra map was located in main.dat. It's an unused sandbox/tutorial level. As proven by some enterprising Introversion forum users this map can be exported through excruciatingly exotic means[www.win-rar.com] and then subsequently played. Though fascinating, this sandbox map was a red herring. Explorer and Master of Multiwinia can now be unlocked by employing an elegant solution discovered in the freely available source-code by Radiotelegrafist.
Upon discovery, the missing file was then relayed to a helpful (read: modern) Introversion developer who has implemented the fix universally in a new beta branch.

Exported Sandbox Maps:
http://www.XXXiafire.com/download/cs2k3rrean7qeru/data.zip (mediafire link)

1. Install the beta branch from Betas tab.

2. Win a match on every multiplayer level.

MAKE ABSOLUTELY CERTAIN THAT THE LAST LEVEL IS PLAYED AGAINST HUMAN OPPONENTS. THAT MEANS 0 (ZERO) BOTS. YOUR STATS FOR THESE ACHIEVEMENTS WILL BE PERMANENTLY SCREWED IF YOU FAIL TO HEED THIS NOTICE.
You have been warned.

*Additional notes: the authors did not make any alterations to gameplay settings nor win conditions. All levels were completed using human controlled opponents exclusively. It is highly recommended that anyone attempting Explorer/ Master of Multiwinia do likewise.

Let's take a look at what is stored on Steam side. You can check progress directly via http://gtm.steamproxy.vip/ISteamUserStats/GetUserStatsForGame/v0002/?appid=11240&key=your_key&steamid=your_id or using an achievement tracking site such as https://completionist.me.

So you've played a bit with the provided solution, and maybe also won in a couple of levels, so you check your Steam stats, and you see this:


Okay, now you're probably confused about what you're looking at, so let us elaborate a bit.
There are 49 levels in your level folder, coincidentally that's also the amount of levels that you'll have to visit and win. You may have noticed that the level_enum.txt file has 59 entries, but don't worry - the last 10 are irrelevant, Game checks if you have completed just the 49 (0x31 in hex), which could be seen in disassembly here (0053bf1a for wins and 0053bfca for visits for all the turbonerds out there):


We have LevelsVisitedOne and LevelsVisitedTwo values for Explorer achievement, and LevelsWonOne and LevelsWonTwo values for Master of Multiwinia achievement. Those two pairs work identically to each other, so we'll use visits as an example. These two values (...One and ...Two) are just one long flag-array for all the levels, and that level_enum.txt provides the indices in the array for the respective maps. Let's use the number in the first screenshot as an example, 3321888798. Boot up the Windows calculator, switch to programmer mode, and pay attention to the binary row:


Those are RIGHT TO LEFT your stats for levels starting from 0, except that value doesn't have any level tied to it. Then there are 4 ones in a row, which means that levels with IDs 1 to 4 were visited. Let's cross-reference that with level_enum file to get the names of the maps that were visited:


The leftmost bit of LevelsVisitedOne logically corresponds to the 31 entry, 'mp_koth_2P_2', and then the rightmost bit of the LevelsVisitedTwo corresponds to the 32 entry, 'mp_koth_2P_3'. LevelsVisitedTwo uses only the first 20 bits starting from the RIGHT. Now you should know how to decode your values to map names. But wait a second, those aren't the names you see in the game, are they? And for that purpose you can use the following translation table!

for those who want even more information, the game manual is available for free