Deus Ex: Human Revolution

This is an excellent playthrough video by prenatual I found on YouTube. All credit goes to him.
http://www.youtube.com/watch?feature=player_detailpage&v...

Description:
Deus Ex: Human Revolution. The Missing Link. Factory Zero playthrough.

Perfect ghosting (no enemies alerted). No take-downs (except "the boss room"), no aug upgrades, no weapons, no items (except quest-related). 'Give me Deus Ex' difficulty. 9/10 achievements earned (except That Old Adage, which requires CASIE aug).

As the achievement dialogue states, you cannot use any weapon, grenade, or use any praxis points.

This means you can't utilize the points you earn by gaining levels EITHER. You need to do the entire DLC with the stock enhancements they provide. Just take your time, save often, and explore a lot. You'll be crawling through a lot of air ducts and scrounging for pocket secretaries a lot, since you won't be able to hack anything above level 1. Make sure you take down as many guards as you can - quite a few of them have pocket secretaries on them.

I would also recommend not even picking up any weapons, grenades or praxis kits. Just remove the chance for an accident and/or temptation. When you first get your gear back, there are two boxes on the floor - one for praxis kits (7) and another for guns. Don't open either one.

Good luck!

I completed the entire add on including all achievements on easy setting in 8 hours, its actually pretty easy as long as you use stealth to your advantage remembering you only have 2 energy bars and only single takedowns so if your up against 2 guys either avoid them or take 1 out and hide till your bar fills up if you had just 1 bar to begin with.

You can use pro energy bars, painkillers as much as you like just dont use weapons, praxis kits or grenades..

If like me your going for the clean sweep in 1 run make use of save points you only need to use a weapon once in the entire add on to blast the cylinder to save both the prisoners and the scientist so make a save point use the weapon get the achievement and revert back to the save point and then choose 1 or the other.

Dont even bother picking up grenades and when you visit the store only purchase what you need i.e pro energy bars, etc..

Drop all weapons you may pick up and never have them equipped and this achievement will be a breeze.

A truly infuriating (I won't express just how much here because it would only descend into a string of vehement profanity and I don't want to annoy the moderators) and badly programmed achievement. It's clearly scripted off a trigger press merely by having a weapon picked up and selected, meaning even if your gun never fires or a grenade never gets thrown, you can still lose. Lazy and aggravating.

It doesn't register whether you use items/weapons, but whether you UNHOLSTER them. I never fired once on my first playthrough, nor did I throw any grenades.

Obviously I was used to picking up any items I found as is standard in Deus Ex so did that but made sure not to use them. Did all the stealth stuff elegantly, thought I did really well but NOPE. *quiet seething* As if the missing textures etc. on Xbox One backwards compatibility aren't galling enough.....

Anyway in case anyone's in the same position (my sympathies): I managed to get it by just putting the game on the lowest difficulty, being careful not to pick ANY weapons or grenades up, checking my inventory regularly, cheesing as much as possible, running, sponging a lot of bullets, getting angry at the references to my lack of stealth (I WONDER WHY), and using the game's own dumb enemy AI against it. Then it unlocked at the end. It can still take about an hour and a half from dying and reloading but it's a hell of a lot quicker than stealthing it.

I'll strongly reiterate that health and energy consumables are also fine as others have said.

REALLY not how I like to game but like hell was I gonna do it properly again and it took way less time.

Hope this helps.

PS. If you haven't got all the achievements yet, save regularly, so you can revisit a couple of relevant stages. Personally I was laser focused on getting this one first but luckily two of the remaining ones are very close to the end, literally just before the last section.