Deus Ex: Human Revolution - Director's Cut: Complete Guide

A player's guide to Deus Ex: Human Revolution - Director's Cut: how XP and Praxis really work, which augmentations to buy first, hacking, stealth vs combat, bosses, missable side quests, endings and the tough achievements.

Researched September 2026 — current as of the final Director's Cut PC patch (November 18, 2013). Live games change; check the linked sources if something differs.

Quick Start

  1. Praxis Kits are everything. They unlock and upgrade augmentations. You get them by levelling up (XP), buying them at LIMB clinics, and finding them hidden in the world. Explore every vent and apartment.
  2. Stealth and non-lethal play earns the most XP. Non-lethal takedowns give more XP than kills, finishing an area undetected earns the Ghost bonus, and completing objectives without triggering alarms earns Smooth Operator. Hacking and exploration pay XP too.
  3. Hack everything. Terminals, keypads and safes give XP, credits, codes and hidden routes. Early Hacking: Capture upgrades pay for themselves.
  4. Only your lowest energy cell regenerates by default. Takedowns cost a full cell, so carry energy-restoring food and drink and don't waste cells.
  5. Side quests are missable. Each hub (Detroit, Hengsha) has quests that close when the story moves on. Do them before leaving a hub.
  6. Read everything. Emails and pocket secretaries contain door codes and passwords. There are also 29 XP books (Doctorate achievement for reading all in one playthrough).
  7. Inventory space is tight. Upgrade carry capacity early if you like carrying multiple weapons.
  8. There's almost always another route: vents, a hackable door, a stack of boxes, a jump upgrade, a wall you can punch through.
  9. The Director's Cut integrates The Missing Link DLC into the campaign and reworks boss fights so stealth and non-lethal builds can handle them.

What the Director's Cut Adds

XP, Praxis and Levelling

XP source Notes
Non-lethal takedowns Worth more than lethal takedowns
Headshots and kills Lethal combat still pays, just less
Ghost bonus Completing an area/objective without being seen
Smooth Operator Completing an objective without triggering alarms
Hacking XP for each successful hack, plus bonus datastores
Exploration Finding hidden paths and vents pays small XP bonuses
XP books 29 in total; each gives a lump of XP
Side quests Big XP rewards and often extra Praxis-level loot

Each level up gives one Praxis Kit. Buying Praxis at LIMB clinics is expensive but worth it: prioritise cash for Praxis over ammo when you can.

Augmentations: What to Buy First

Your first Praxis should always go toward whatever gets you more XP and more routes.

Augmentation Why it's great
Hacking: Capture Higher security level means more doors, safes, terminals and XP
Hacking: Stealth / Fortify / Analyze Make hacking reliable, faster and safer
Social Enhancer (CASIE) Win key conversation "boss fights" and extra information
Cybernetic Leg: Jump Enhancement Reach rooftops and ledges; opens many alternate paths
Cybernetic Arm: Move/Throw Heavy Objects Move vending machines and crates blocking vents
Cybernetic Arm: Punch Through Walls New routes through weakened walls (and surprise takedowns)
Cybernetic Arm: Carry Capacity More inventory for weapons and ammo
Cloaking System Invisibility; the core stealth tool
Icarus Landing System Fall from any height safely
Reflex Booster Takedown two enemies at once
Smart Vision See enemies through walls
Rebreather Walk through toxic gas
Dermal Armor Damage reduction for combat builds
Typhoon Explosive System Burst damage for bosses and groups
Sentinel RX Health System Faster health regeneration

Rule of thumb: Hacking: Capture first, then either Social Enhancer or Jump/heavy objects. Combat players should grab Dermal Armor and Typhoon. Cloak comes online mid-game when you have Praxis to spare and energy upgrades to fuel it.

Hacking Minigame

Stealth, Takedowns and Combat

Bosses

The Director's Cut added real alternatives to the boss fights, so you can take them without a pure combat build.

Boss Achievement Tips
Lawrence Barrett The Bull Use explosives, hackable turrets and environmental options. Typhoon and heavy weapons end it fast.
Yelena Fedorova The Mantis She cloaks and moves fast; watch the room's environmental hazards and use them.
Jaron Namir The Snake Fast and aggressive. Stun him, then punish; bring plenty of healing.
Zhao Yun Ru (final confrontation, Panchaea) Hidden achievement Handle the aggressive augmented guards and protect yourself; the fight varies by approach.

General boss tips:

Hubs and Missable Side Quests

The story moves through Detroit, Hengsha, Montreal, a return to Detroit and Hengsha, Singapore and the Panchaea facility.

Golden rule: Before any objective that sends you out of a hub (to another city), check your quest log and finish every side quest you want.

Endings

There are four endings, chosen at the climax. Deus Ex Machina requires seeing all of them. Make a manual save before the final choice; you can reload and pick each one.

Achievements Worth Planning For

Achievement Requirement Tips
Pacifist Finish without anyone dying by your hand (bosses excluded) Avoid indirect kills too (hacked turrets, explosions, falls).
Foxiest of the Hounds Finish without setting off any alarms Quicksave often and reload if an alarm triggers.
Legend Finish on the hardest setting without changing difficulty Combine with Pacifist and Foxiest for a single stealth run.
Doctorate Read all 29 XP books in one playthrough Some are in side areas and apartments.
Hax0r1! Hack 50 devices in one playthrough You'll get it naturally with a hacking build.
Opportunist 50 takedowns in one playthrough Natural for stealth builds.
Consciousness is Over-rated Knock out 100 enemies in one playthrough Non-lethal builds get this easily.
Transhumanist Fully upgrade your first augmentation Pick something cheap.
Gun Nut Fully upgrade a weapon Weapon upgrade kits; pick a favourite early.
Deus Ex Machina Experience all endings Save before the final choice.

Efficient plan: one careful run on the hardest difficulty with Pacifist, Foxiest of the Hounds, Doctorate and Legend together, quicksaving often. Then a New Game+ run for anything missed.

Common Mistakes to Avoid

Advanced Tips

FAQ

How long is Deus Ex: Human Revolution - Director's Cut? Around 25 to 30 hours with side quests; less if you rush.

Is the Missing Link included? Yes. The Director's Cut integrates it into the campaign.

Stealth or combat? Both work, but stealth and non-lethal play earn more XP and fit the achievements. Mixing styles is fine.

What's the best first augmentation? Hacking: Capture, followed by Social Enhancer or the jump and heavy-object upgrades.

Do boss kills count against Pacifist? No. Bosses are excluded.

Is there New Game+? Yes, in the Director's Cut.

How many endings are there? Four, all chosen at the climax. Save before the final choice to see them all.

Sources