Cyberpunk 2077

There are currently two known ways to obtain the Detonate Grenade quickhack: crafting it, or obtaining it from a random enemy drop. Both methods of obtaining this quickhack are explained before first, followed by a description at the end of where to obtain this achievement.

btaining it from a random drop is a little more difficult only because luck plays a factor in actually getting it. Once you've progressed to The Chapel in Pacifica (you'll go there as part of the story, but can head there whenever you have access), there are three enemies standing outside of it. These enemies (among others in the area) have a chance to drop this quickhack when killed. You can make a manual save and continually kill them and reload if the don't drop the quickhack, until they finally drop it. If you obtain it this way, you may not have enough RAM to be able to use this quickhack on enemies. You will either need to level up the Intelligence attribute (which would also be required for the below method) to have enough RAM, or buy an upgraded Operating System from a Ripperdoc to increase your RAM. The latter option doesn't require any investment in attributes.

To craft it, you must raise your Intelligence to level 16. This option is missable because attribute points cannot be reset. This method is actually a multi-step process, and a bit complex. I will go over each bit, step by step.

The first thing you need to do is obtain uncommon, rare, epic, and legendary quickhack crafting components. These are different than the crafting components you obtain from looting, breaking down items, etc. There are only two ways to obtain quickhack crafting components:
 

1. The Netrunner vendor shops (one in Watson, one in Westbrook, and one in Pacifica) sell quickhack components. They all will always sell uncommon and rare ones. There is apparently a chance that the Pacifica one will stock epic and legendary ones, but after a dozen or so reloads, skipping time a day, etc., I never saw them stocked.
2. The only other way to get them is to "jack in" to Access Points. These are most commonly found inside buildings. When scanned, they show up as a red diamond like other things you can hack, but they will be labeled Access Point. Their red diamonds also show up on your minimap, making it easier to spot them. You'll need to walk up to them and press  to "jack in." Once inside, you'll see the Breach Protocol minigame. On the right, you'll see three tiers of the Datamine daemon. Your goal is to input the four inputs for the third tier (V3) of the daemon, the bottom row. Ignore the top two rows unless you have an operating system that allows more than four inputs. Trace a mental path in your head to make sure you can activate the third tier of the Datamine daemon. Do so, and when you back out you should see a popup on the left saying you obtained uncommon, rare, epic, and legendary components. These are the components you need for crafting.

As you progress in the game, keep an eye out for these Access Points and use them whenever possible. They all require some level of Intelligence. Many in Watson require 3 or 5 Intelligence, but later areas will require more. Thankfully, if you save up enough perk and attribute points (or just build into Technical) such that you can purchase the perk to reduce the cost of crafting, you only need to complete three Access Point hacks with the third tier Datamine daemon to obtain enough epic and legendary components to craft Detonate Grenade.

With that explanation out of the way, you now have the components to craft Detonate Grenade. Note that you can make a manual save before doing any of this to avoid wasting your attribute and/or perk points. Crafting quickhacks works differently than other gear. There are no blueprints (specs) to obtain for them. Instead, you'll need to level up your Intelligence attribute to level 16. This gives you access to the perk that lets you craft epic quickhacks. Unfortunately, Detonate Grenade is only epic or legendary. Buying this perk lets you access the specs for all epic quickhacks. Go into the crafting menu, choose quickhacks, and find Detonate Grenade and craft it. To equip it, go to your cyberware, then to your operating system. Choose Detonate Grenade as one of your quickhacks to apply to your operating system. Obtaining the quickhack this way ensures you will have enough RAM to use it with the default Operating System installed, because leveling up your Intelligence increases your RAM.

Once you've obtained Detonate Grenade by either of the methods listed above, you're finally ready to attempt this achievement. You now need to find three enemies that are close to each other, scan one with , and then choose the Detonate Grenade option, which will make that enemy's grenade explode. If it kills him and at least two more enemies, this achievement will unlock. This can be done on any group of enemies, and is especially good to do on enemies in neutral territory (non hostile areas) since they are usually standing near each other and talking. It can also be done on a group of NCPD cops together. One other option to get enemies together is to also purchase or craft the Request Backup quickhack. This is an uncommon rarity one, so you can purchase it from any Netrunner vendor, or you can craft it yourself. You can use this on an enemy to bring them together, if they're farther apart. A good spot for three enemies is in front of The Chapel in Pacifica, where the Voodoo Boys hang out. There are three enemies in a little circle at a railing right in front of it.

Once you successfully kill three enemies with Detonate Grenade, you'll finally unlock this annoying achievement.