Defense Grid 2

Defense Grid 2

65 Achievements

1,000

25-30h

Xbox One
Xbox Series
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Xenocide

Xenocide

Kill 50,000 aliens.

30

1.72%

How to unlock the Xenocide achievement in Defense Grid 2 - Definitive Guide

Playing through the story campaign on easy you'll end up with about 10,000 aliens killed. If you are going for the Master Strategist achievement which requires 100 gold medals, you should get this achievement on the way. If you're looking for the quickest way I recommend playing through levels on Easy + Practice so you get extra starting resources. Below are the number of waves and aliens I got when chasing this. Level 02, 12, and 20 were the ones I focused on most.

00 - 10 waves, 89 aliens
01 - 20 waves, 387 aliens
02 - 20 waves, 403 aliens
03 - 25 waves, 498 aliens
04 - 20 waves, 294 aliens
05 - 30 waves, 486 aliens
06 - 30 waves, 409 aliens
07 - 30 waves, 444 aliens
08 - 30 waves, 404 aliens
09 - 30 waves, 371 aliens
10 - 30 waves, 407 aliens
11 - 25 waves, 476 aliens
12 - 30 waves, 620 aliens
13 - 30 waves, 395 aliens
14 - 25 waves, 419 aliens
15 - 30 waves, 491 aliens
16 - 30 waves, 560 aliens
17 - 30 waves, 497 aliens
18 - 30 waves, 521 aliens
19 - 35 waves, 606 aliens
20 - 35 waves, 785 aliens

Another good option is to play the Grinder game type on easy difficulty which consist of 100 waves of the easiest alien type, Walkers. You can beat these with a handful of fully upgraded concussion towers (6-10) and a strategically placed fully upgraded temporal tower.

12 - 100 waves, 1876 aliens
15 - 100 waves, 1876 aliens
17 - 100 waves, 1876 aliens
101
2

11 Oct 2014 17:03

10 Comments
prepare for a shit load of upvotes as people play through the Alphabet Challenge! :D
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By C64 Mat on 02 Jun 2017 15:53
I am looking at this right now in order to complete it for the Alphabet Challenge. Haha! Very useful solution.
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By Polcan on 03 Jun 2017 05:25
This is unfortunately my quickest option for the Alphabet challenge, my other options are long ass RPGs or XCOM
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By FierceBullit753 on 08 Jun 2017 21:50
This is my only X achievement for Alphabet Challenge and I am clocking up the Grinders!
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By Bishop Brenan on 09 Jun 2017 20:24
Your the man now dog! Good solution.
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By Agent Olas on 16 Jun 2017 17:15
^same....this is 1 of only 2 x's I have, lol
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By OMG iTz Slov on 23 Jun 2017 10:34
Thanks for making the list of aliens kills per mission.

What's the Alphabet Challenge?
Unlock 26 achievements each starting with a different letter?
Who issued the challenge? Probably something stoopid.
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By E vee dub on 14 May 2018 19:03
Thanks for posting this. This will be my 12th Achievement in the 12th Day of Christmas Challenge, but it's going to take awhile. Fortunately, I love this game.
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By Enduro on 16 Dec 2021 01:17
Going early on this one. 2022 Alphabet challenge and this will be one of them! Just working through my lists but thanks already
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By Wadski on 26 Aug 2022 19:33
Alphabet challenge was a TA event
Alphabet Challenge
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By Zulghinlour on 21 May 2018 15:55
View all 10 comments Show less comments

Simply kill 50,000 aliens to obtain this trophy. This trophy is technically unmissable as you’ll be killing a lot more aliens than the required number over the course of the game, so there’s no need to grind for kills.

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You will unlock this after killing 50,000 aliens. This will unlock naturally as you play the game. Depending on the exact approach you take and how many times you rewind or replay missions, this should unlock before you have completed earning 100 gold medals. If you want to aim for it specifically, Grinder mode has the most aliens per game.

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