Defense Grid 2
65 Achievements
1,000
25-30h
Firebug
Using only Inferno towers, Win any Chapter 4 (or later) mission.
10
2.88%
How to unlock the Firebug achievement in Defense Grid 2 - Definitive Guide
A few things to make note of that aren't in the video.
I started by building that bottom squiggle out of greens, then upgrading them to reds as I had the resources.
When the extra path pops up (with the loops), I blocked the road to make them walk up there. I also upgraded these to reds.
As I gained resources, I built that back line of red infernos.
Around wave 20, I built the 4 infernos in the loop square.
During wave 24, I used Cai's Orbital Laser to weaken both of the enemy dropships so the guys inside would come out weaker.
And there you have it, the achievement should unlock on the score screen.
You use Booster towers for this achievement however I did not.
I did this on mission 14 on Practice Mode on Easy Difficulty.
I was able to get up to wave 21 by spamming lvl 1 Inferno towers as seen below. By which point I had already unlocked gold. After that I upgraded towers as much as I could for an easy win.
I also used the Command Shuttle to move some spots down.
Also, if you haven't gotten it before, you can also achieve:
Additionally, the use of booster towers and the overcharge ability, allows you to use only level 1 towers, to achieve:
I am not the best at describing my method so I have included a video below to show me completing the achievement.
When the extra path pops up (with the loops), I blocked the road to make them walk up there. I also upgraded these to reds.
As I gained resources, I built that back line of red infernos.
Around wave 20, I built the 4 infernos in the loop square.
During wave 24, I used Cai's Orbital Laser to weaken both of the enemy dropships so the guys inside would come out weaker.
The first mission of Chapter 4 is mission 12. Beat this or a later mission using only inferno towers for this trophy to pop.
The easiest mission to obtain this trophy in is mission 14 called ‘Surface Tension’. Play in training mode on the easiest difficulty setting. Now build inferno towers on every available spot and make sure you make the route for the aliens as long as possible by blocking certain crossroads. Keep upgrading the towers throughout the mission and you should be fine. For visual aid on this trophy, please refer to the video below.
This achievement requires that you win any Chapter 4 or later mission using only Inferno towers. While most of the maps can be won this way, the easiest approach is likely to play Chapter 19 in Grinder mode on easy and play only Inferno towers. Ensure you create a long path and consistently upgrade your towers for an easy win. Note that you do not need to get a gold (or any) medal to unlock the achievement, you merely need to finish the game with at least one core still on the map.